WorldWideScience

Sample records for networks trade war

  1. Networks of military alliances, wars, and international trade

    Science.gov (United States)

    Jackson, Matthew O.; Nei, Stephen

    2015-01-01

    We investigate the role of networks of alliances in preventing (multilateral) interstate wars. We first show that, in the absence of international trade, no network of alliances is peaceful and stable. We then show that international trade induces peaceful and stable networks: Trade increases the density of alliances so that countries are less vulnerable to attack and also reduces countries’ incentives to attack an ally. We present historical data on wars and trade showing that the dramatic drop in interstate wars since 1950 is paralleled by a densification and stabilization of trading relationships and alliances. Based on the model we also examine some specific relationships, finding that countries with high levels of trade with their allies are less likely to be involved in wars with any other countries (including allies and nonallies), and that an increase in trade between two countries correlates with a lower chance that they will go to war with each other. PMID:26668370

  2. The Nordic Trade Union Movement and Transnational Anti-Communist Networks in the Early Cold War

    DEFF Research Database (Denmark)

    Knudsen, Dino

    2014-01-01

    Dino Knudsen investigates how the American trade union movement, including figures such as Jay Lovestone and Irving Brown, established anti-Communist networks among the Nordic Non-Communist Left during the early Cold War. What were the implications of these networks, in the context of the Marshal...... and capital, sanctioning a class compromise between them, and contributing to stabilize and maintain a social democratic hegemony in the labor movement.......Dino Knudsen investigates how the American trade union movement, including figures such as Jay Lovestone and Irving Brown, established anti-Communist networks among the Nordic Non-Communist Left during the early Cold War. What were the implications of these networks, in the context of the Marshall...... Plan, for the Nordic trade unions in following their British and American colleagues in breaking with the World Federation of Trade Unions and establishing the International Confederation of Free Trade Unions? In Denmark, American authorities came to function as a kind of mediator between labor...

  3. The Fair Trade Network in Historical Perspective

    OpenAIRE

    Fridell , Gavin

    2004-01-01

    This paper examines the fair trade network within the context of the post-war international development regime. In recent years, sales of fair trade goods — both commodities and handicrafts — have grown substantially in Europe and North America, and the fair trade network has been relatively successful at gaining the support of public institutions, international financial institutions, and transnational corporations. This paper argues that this success, when viewed historically, can only be p...

  4. Stochastic Trade Networks

    OpenAIRE

    Massimo Riccaboni; Stefano Schiavo

    2013-01-01

    This paper develops a simple network model to describe the dynamic of the intensive and extensive margin of international trade flows. The result is achieved by means of the combination of two mechanisms of proportional growth: the first (discrete) determines the formation of trade links, the second (continuous) governs trade intensity. We show that our setup is able to simultaneously match a large number of empirical regularities, such as the fraction of zero trade flows across pairs of coun...

  5. Trade networks in West Africa

    DEFF Research Database (Denmark)

    Walther, Olivier

    2014-01-01

    To date, most of the literature on trade networks in West Africa has considered networks in a metaphorical way. The aim of this paper is to go one step further by showing how social network analysis may be applied to the study of regional trade in West Africa. After a brief review of the literature......, this exploratory paper investigates two main issues related to regional trade. We start by discussing how recent developments in regional trade in West Africa have contributed to challenging the social structure of traders. We then discuss the changes that have affected the spatiality of regional trade by looking...

  6. Trading network predicts stock price.

    Science.gov (United States)

    Sun, Xiao-Qian; Shen, Hua-Wei; Cheng, Xue-Qi

    2014-01-16

    Stock price prediction is an important and challenging problem for studying financial markets. Existing studies are mainly based on the time series of stock price or the operation performance of listed company. In this paper, we propose to predict stock price based on investors' trading behavior. For each stock, we characterize the daily trading relationship among its investors using a trading network. We then classify the nodes of trading network into three roles according to their connectivity pattern. Strong Granger causality is found between stock price and trading relationship indices, i.e., the fraction of trading relationship among nodes with different roles. We further predict stock price by incorporating these trading relationship indices into a neural network based on time series of stock price. Experimental results on 51 stocks in two Chinese Stock Exchanges demonstrate the accuracy of stock price prediction is significantly improved by the inclusion of trading relationship indices.

  7. The evolution of communities in the international oil trade network

    Science.gov (United States)

    Zhong, Weiqiong; An, Haizhong; Gao, Xiangyun; Sun, Xiaoqi

    2014-11-01

    International oil trade is a subset of global trade and there exist oil trade communities. These communities evolve over time and provide clues of international oil trade patterns. A better understanding of the international oil trade patterns is necessary for governments in policy making. To study the evolution of trade communities in the international oil trade network, we set up unweighted and weighted oil trade network models based on complex network theory using data from 2002 to 2011. We detected the communities in the oil trade networks and analyzed their evolutionary properties and stabilities over time. We found that the unweighted and weighted international oil trade networks show many different features in terms of community number, community scale, distribution of countries, quality of partitions, and stability of communities. Two turning points occurred in the evolution of community stability in the international oil trade network. One is the year 2004-2005 which correlates with changes in demand and supply in the world oil market after the Iraq War, and the other is the year 2008-2009 which is connected to the 2008 financial crisis. Different causations of instability show different features and this should be considered by policy makers.

  8. Scaling Effect In Trade Network

    Science.gov (United States)

    Konar, M.; Lin, X.; Rushforth, R.; Ruddell, B. L.; Reimer, J.

    2015-12-01

    Scaling is an important issue in the physical sciences. Economic trade is increasingly of interest to the scientific community due to the natural resources (e.g. water, carbon, nutrients, etc.) embodied in traded commodities. Trade refers to the spatial and temporal redistribution of commodities, and is typically measured annually between countries. However, commodity exchange networks occur at many different scales, though data availability at finer temporal and spatial resolution is rare. Exchange networks may prove an important adaptation measure to cope with future climate and economic shocks. As such, it is essential to understand how commodity exchange networks scale, so that we can understand opportunities and roadblocks to the spatial and temporal redistribution of goods and services. To this end, we present an empirical analysis of trade systems across three spatial scales: global, sub-national in the United States, and county-scale in the United States. We compare and contrast the network properties, the self-sufficiency ratio, and performance of the gravity model of trade for these three exchange systems.

  9. Propagation of crises in the virtual water trade network

    Science.gov (United States)

    Tamea, Stefania; Laio, Francesco; Ridolfi, Luca

    2015-04-01

    The international trade of agricultural goods is associated to the displacement of the water used to produce such goods and embedded in trade as a factor of production. Water virtually exchanged from producing to consuming countries, named virtual water, defines flows across an international network of 'virtual water trade' which enable the assessment of environmental forcings and implications of trade, such as global water savings or country dependencies on foreign water resources. Given the recent expansion of commodity (and virtual water) trade, in both displaced volumes and network structure, concerns have been raised about the exposure to crises of individuals and societies. In fact, if one country had to markedly decrease its export following a socio-economical or environmental crisis, such as a war or a drought, many -if not all- countries would be affected due to a cascade effect within the trade network. The present contribution proposes a mechanistic model describing the propagation of a local crisis into the virtual water trade network, accounting for the network structure and the virtual water balance of all countries. The model, built on data-based assumptions, is tested on the real case study of the Argentinean crisis in 2008-09, when the internal agricultural production (measured as virtual water volume) decreased by 26% and the virtual water export of Argentina dropped accordingly. Crisis propagation and effects on the virtual water trade are correctly captured, showing the way forward to investigations of crises impact and country vulnerability based on the results of the model proposed.

  10. Organ trade using social networks

    Directory of Open Access Journals (Sweden)

    Waleed Alrogy

    2016-01-01

    Full Text Available Organ transplantation is recognized worldwide as an effective treatment for organ failure. However, due to the increase in the number of patients requiring a transplant, a shortage of suitable organs for transplantation has become a global problem. Human organ trade is an illegal practice of buying or selling organs and is universally sentenced. The aim of this study was to search social network for organ trade and offerings in Saudi Arabia. The study was conducted from June 22, 2015 to February 19, 2016. The search was conducted on Twitter, Google answers, and Facebook using the following terms: kidney for sale, kidneys for sale, liver for sale, kidney wanted, liver wanted, kidney donor, and liver donor. We found a total of 557 adverts on organ trade, 165 (30% from donors or sellers, and 392 (70% from recipients or buyers. On Twitter, we found 472 (85% adverts, on Google answers 61 (11%, and on Facebook 24 (4%. Organ trade is a global problem, and yet it is increasingly seen in many countries. Although the Saudi Center for Organ Transplantation by-laws specifically prohibits and monitors any form of commercial transplantation, it is still essential to enforce guidelines for medical professionals to detect and prevent such criminal acts.

  11. Global Electricity Trade Network: Structures and Implications

    Science.gov (United States)

    Ji, Ling; Jia, Xiaoping; Chiu, Anthony S. F.; Xu, Ming

    2016-01-01

    Nations increasingly trade electricity, and understanding the structure of the global power grid can help identify nations that are critical for its reliability. This study examines the global grid as a network with nations as nodes and international electricity trade as links. We analyze the structure of the global electricity trade network and find that the network consists of four sub-networks, and provide a detailed analysis of the largest network, Eurasia. Russia, China, Ukraine, and Azerbaijan have high betweenness measures in the Eurasian sub-network, indicating the degrees of centrality of the positions they hold. The analysis reveals that the Eurasian sub-network consists of seven communities based on the network structure. We find that the communities do not fully align with geographical proximity, and that the present international electricity trade in the Eurasian sub-network causes an approximately 11 million additional tons of CO2 emissions. PMID:27504825

  12. Global Electricity Trade Network: Structures and Implications.

    Science.gov (United States)

    Ji, Ling; Jia, Xiaoping; Chiu, Anthony S F; Xu, Ming

    2016-01-01

    Nations increasingly trade electricity, and understanding the structure of the global power grid can help identify nations that are critical for its reliability. This study examines the global grid as a network with nations as nodes and international electricity trade as links. We analyze the structure of the global electricity trade network and find that the network consists of four sub-networks, and provide a detailed analysis of the largest network, Eurasia. Russia, China, Ukraine, and Azerbaijan have high betweenness measures in the Eurasian sub-network, indicating the degrees of centrality of the positions they hold. The analysis reveals that the Eurasian sub-network consists of seven communities based on the network structure. We find that the communities do not fully align with geographical proximity, and that the present international electricity trade in the Eurasian sub-network causes an approximately 11 million additional tons of CO2 emissions.

  13. Amy Quark: Global Rivalries: Standards Wars and the Transnational Cotton Trade

    DEFF Research Database (Denmark)

    Ponte, Stefano

    2014-01-01

    Book review of: Amy Quark, 2013, Global Rivalries: Standards Wars and the Transnational Cotton Trade, Chicago: University of Chicago Press, 282 pages, ISBN 978-0226050676 Paper ($24,50),......Book review of: Amy Quark, 2013, Global Rivalries: Standards Wars and the Transnational Cotton Trade, Chicago: University of Chicago Press, 282 pages, ISBN 978-0226050676 Paper ($24,50),...

  14. Discovering Preferential Patterns in Sectoral Trade Networks.

    Directory of Open Access Journals (Sweden)

    Isabella Cingolani

    Full Text Available We analyze the patterns of import/export bilateral relations, with the aim of assessing the relevance and shape of "preferentiality" in countries' trade decisions. Preferentiality here is defined as the tendency to concentrate trade on one or few partners. With this purpose, we adopt a systemic approach through the use of the tools of complex network analysis. In particular, we apply a pattern detection approach based on community and pseudocommunity analysis, in order to highlight the groups of countries within which most of members' trade occur. The method is applied to two intra-industry trade networks consisting of 221 countries, relative to the low-tech "Textiles and Textile Articles" and the high-tech "Electronics" sectors for the year 2006, to look at the structure of world trade before the start of the international financial crisis. It turns out that the two networks display some similarities and some differences in preferential trade patterns: they both include few significant communities that define narrow sets of countries trading with each other as preferential destinations markets or supply sources, and they are characterized by the presence of similar hierarchical structures, led by the largest economies. But there are also distinctive features due to the characteristics of the industries examined, in which the organization of production and the destination markets are different. Overall, the extent of preferentiality and partner selection at the sector level confirm the relevance of international trade costs still today, inducing countries to seek the highest efficiency in their trade patterns.

  15. A Network of Networks Perspective on Global Trade.

    Science.gov (United States)

    Maluck, Julian; Donner, Reik V

    2015-01-01

    Mutually intertwined supply chains in contemporary economy result in a complex network of trade relationships with a highly non-trivial topology that varies with time. In order to understand the complex interrelationships among different countries and economic sectors, as well as their dynamics, a holistic view on the underlying structural properties of this network is necessary. This study employs multi-regional input-output data to decompose 186 national economies into 26 industry sectors and utilizes the approach of interdependent networks to analyze the substructure of the resulting international trade network for the years 1990-2011. The partition of the network into national economies is observed to be compatible with the notion of communities in the sense of complex network theory. By studying internal versus cross-subgraph contributions to established complex network metrics, new insights into the architecture of global trade are obtained, which allow to identify key elements of global economy. Specifically, financial services and business activities dominate domestic trade whereas electrical and machinery industries dominate foreign trade. In order to further specify each national sector's role individually, (cross-)clustering coefficients and cross-betweenness are obtained for different pairs of subgraphs. The corresponding analysis reveals that specific industrial sectors tend to favor distinct directionality patterns and that the cross-clustering coefficient for geographically close country pairs is remarkably high, indicating that spatial factors are still of paramount importance for the organization of trade patterns in modern economy. Regarding the evolution of the trade network's substructure, globalization is well-expressed by trends of several structural characteristics (e.g., link density and node strength) in the interacting network framework. Extreme events, such as the financial crisis 2008/2009, are manifested as anomalies superimposed to

  16. Social Network Analysis and informal trade

    DEFF Research Database (Denmark)

    Walther, Olivier

    networks can be applied to better understand informal trade in developing countries, with a particular focus on Africa. The paper starts by discussing some of the fundamental concepts developed by social network analysis. Through a number of case studies, we show how social network analysis can...... illuminate the relevant causes of social patterns, the impact of social ties on economic performance, the diffusion of resources and information, and the exercise of power. The paper then examines some of the methodological challenges of social network analysis and how it can be combined with other...

  17. Markets and Networks in International Trade

    DEFF Research Database (Denmark)

    Håkanson, Lars; Dow, Douglas

    2012-01-01

    is associated with a shift in the composition of trade towards goods requiring more extensive information exchange and personal interaction between buyers and sellers. An alternative explanation—‘the market view’—contends that improved availability of information and increasing transparency of markets have...... in support of the ‘market-view’, showing that the sensitivity of trade to psychic distance has declined dramatically for all categories of goods. The impact of geographic distance has increased markedly for homogenous goods, whereas for more differentiated goods it has decreased mildly.......The enduring importance of geographic distance as an impediment to international trade has recently become recognized as an empirical fact in need of explanation. According to one line of argument—the ‘network view’—the continuing high sensitivity of international trade to geographical distance...

  18. Discourse on corruption counteraction in network trade

    Directory of Open Access Journals (Sweden)

    Leonid A. Zhigun

    2015-12-01

    Full Text Available Objective to determine the specific forms of corruption and promising methods to counteract corruption in network trade. Methods the combination of inductive observations comparisons generalizations facts and trends of corruption in network trade with a logical analytical deduction of economic theories and the corruption concept are the basis of the study and provide an opportunity on the one hand to assess the level of compliance of theoretical concepts of corruption with the practice and on the other handnbsp to determine their applicability to organize opposition and create conditions to prevent its occurrence to summarize the features of corruption in the form of a kickback the discourse method was applied in this work. Results on the basis of theoretical provisions and facts of corruption in trade it is proved that it has typical characteristics of corruption in commercial and nonprofit organizations. The key reasons are identified why corruption occurs in trade. Among them supply of poor quality goods at inflated prices leading to bribery in the form of laquopersonal bonusraquo to administrator of the trading organization when selling goods by an unscrupulous supplier and also supply goods to the trade organizations which will not buy without kickback. Most of these corrupt deals are carried out by natural monopolies in the form of state and municipal procurement. In some cases the kickback is the argument stimulating the decision to introduce new and advanced technologies. The factors that lead to corruption in trade are listed and reasonable methods to counteract it are grounded allowing to create conditions for its eradication in other branches of business as well. Scientific novelty for the first time a generalization has been made about the deficit as the driving force in the mechanism when the bribegivers and bribetakers change places. Practical significance the main provisions and conclusions of the article can be used in the

  19. A Network of Networks Perspective on Global Trade.

    Directory of Open Access Journals (Sweden)

    Julian Maluck

    Full Text Available Mutually intertwined supply chains in contemporary economy result in a complex network of trade relationships with a highly non-trivial topology that varies with time. In order to understand the complex interrelationships among different countries and economic sectors, as well as their dynamics, a holistic view on the underlying structural properties of this network is necessary. This study employs multi-regional input-output data to decompose 186 national economies into 26 industry sectors and utilizes the approach of interdependent networks to analyze the substructure of the resulting international trade network for the years 1990-2011. The partition of the network into national economies is observed to be compatible with the notion of communities in the sense of complex network theory. By studying internal versus cross-subgraph contributions to established complex network metrics, new insights into the architecture of global trade are obtained, which allow to identify key elements of global economy. Specifically, financial services and business activities dominate domestic trade whereas electrical and machinery industries dominate foreign trade. In order to further specify each national sector's role individually, (cross-clustering coefficients and cross-betweenness are obtained for different pairs of subgraphs. The corresponding analysis reveals that specific industrial sectors tend to favor distinct directionality patterns and that the cross-clustering coefficient for geographically close country pairs is remarkably high, indicating that spatial factors are still of paramount importance for the organization of trade patterns in modern economy. Regarding the evolution of the trade network's substructure, globalization is well-expressed by trends of several structural characteristics (e.g., link density and node strength in the interacting network framework. Extreme events, such as the financial crisis 2008/2009, are manifested as anomalies

  20. Cyber War Game in Temporal Networks.

    Directory of Open Access Journals (Sweden)

    Jin-Hee Cho

    Full Text Available In a cyber war game where a network is fully distributed and characterized by resource constraints and high dynamics, attackers or defenders often face a situation that may require optimal strategies to win the game with minimum effort. Given the system goal states of attackers and defenders, we study what strategies attackers or defenders can take to reach their respective system goal state (i.e., winning system state with minimum resource consumption. However, due to the dynamics of a network caused by a node's mobility, failure or its resource depletion over time or action(s, this optimization problem becomes NP-complete. We propose two heuristic strategies in a greedy manner based on a node's two characteristics: resource level and influence based on k-hop reachability. We analyze complexity and optimality of each algorithm compared to optimal solutions for a small-scale static network. Further, we conduct a comprehensive experimental study for a large-scale temporal network to investigate best strategies, given a different environmental setting of network temporality and density. We demonstrate the performance of each strategy under various scenarios of attacker/defender strategies in terms of win probability, resource consumption, and system vulnerability.

  1. Structure and evolution of the global seafood trade network

    Science.gov (United States)

    Gephart, Jessica A.; Pace, Michael L.

    2015-12-01

    The food production system is increasingly global and seafood is among the most highly traded commodities. Global trade can improve food security by providing access to a greater variety of foods, increasing wealth, buffering against local supply shocks, and benefit the environment by increasing overall use efficiency for some resources. However, global trade can also expose countries to external supply shocks and degrade the environment by increasing resource demand and loosening feedbacks between consumers and the impacts of food production. As a result, changes in global food trade can have important implications for both food security and the environmental impacts of production. Measurements of globalization and the environmental impacts of food production require data on both total trade and the origin and destination of traded goods (the network structure). While the global trade network of agricultural and livestock products has previously been studied, seafood products have been excluded. This study describes the structure and evolution of the global seafood trade network, including metrics quantifying the globalization of seafood, shifts in bilateral trade flows, changes in centrality and comparisons of seafood to agricultural and industrial trade networks. From 1994 to 2012 the number of countries trading in the network remained relatively constant, while the number of trade partnerships increased by over 65%. Over this same period, the total quantity of seafood traded increased by 58% and the value increased 85% in real terms. These changes signify the increasing globalization of seafood products. Additionally, the trade patterns in the network indicate: increased influence of Thailand and China, strengthened intraregional trade, and increased exports from South America and Asia. In addition to characterizing these network changes, this study identifies data needs in order to connect seafood trade with environmental impacts and food security outcomes.

  2. Aanloop Molengat – Maritime archaeology and intermediate trade during the Thirty Years’ War

    DEFF Research Database (Denmark)

    Maarleveld, Thijs J.; Overmeer, Alice

    2012-01-01

    from the Dutch Republic at a time of profound troubles. The Eighty Years’ War between the Republic and Spain was far from settled. War at sea was unremitting and intensifying, with Dunkirk privateers an unruly menace to Dutch shipping. Spanish rule in the southern Low Countries was highly militarised......, and constant campaigns were waged against it from the North. Central Europe was devastated by the Thirty Years’ War, which had entered a new phase through new alliances. The heavy and strategically valuable cargo of the Dutch ship was assembled from North and South, as well as from a range of places in central...... as on the production and distribution of the individual shipments in the cargo, and informing us about the structure of early modern industry and trade, operating despite and because of the war. The present study, initiated by Wilma Gijsbers in 2010 and supported by the Cultural Heritage Agency of the Netherlands (RCE...

  3. Network structure impacts global commodity trade growth and resilience

    Science.gov (United States)

    Rovenskaya, Elena; Fath, Brian D.

    2017-01-01

    Global commodity trade networks are critical to our collective sustainable development. Their increasing interconnectedness pose two practical questions: (i) Do the current network configurations support their further growth? (ii) How resilient are these networks to economic shocks? We analyze the data of global commodity trade flows from 1996 to 2012 to evaluate the relationship between structural properties of the global commodity trade networks and (a) their dynamic growth, as well as (b) the resilience of their growth with respect to the 2009 global economic shock. Specifically, we explore the role of network efficiency and redundancy using the information theory-based network flow analysis. We find that, while network efficiency is positively correlated with growth, highly efficient systems appear to be less resilient, losing more and gaining less growth following an economic shock. While all examined networks are rather redundant, we find that network redundancy does not hinder their growth. Moreover, systems exhibiting higher levels of redundancy lose less and gain more growth following an economic shock. We suggest that a strategy to support making global trade networks more efficient via, e.g., preferential trade agreements and higher specialization, can promote their further growth; while a strategy to increase the global trade networks’ redundancy via e.g., more abundant free-trade agreements, can improve their resilience to global economic shocks. PMID:28207790

  4. Quantifying immediate price impact of trades based on the k-shell decomposition of stock trading networks

    Science.gov (United States)

    Xie, Wen-Jie; Li, Ming-Xia; Xu, Hai-Chuan; Chen, Wei; Zhou, Wei-Xing; Stanley, H. Eugene

    2016-10-01

    Traders in a stock market exchange stock shares and form a stock trading network. Trades at different positions of the stock trading network may contain different information. We construct stock trading networks based on the limit order book data and classify traders into k classes using the k-shell decomposition method. We investigate the influences of trading behaviors on the price impact by comparing a closed national market (A-shares) with an international market (B-shares), individuals and institutions, partially filled and filled trades, buyer-initiated and seller-initiated trades, and trades at different positions of a trading network. Institutional traders professionally use some trading strategies to reduce the price impact and individuals at the same positions in the trading network have a higher price impact than institutions. We also find that trades in the core have higher price impacts than those in the peripheral shell.

  5. Asia-Pacific Research and Training Network on Trade (ARTNET ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The Asia-Pacific Research and Training Network on Trade (ARTNET) was established in 2004 to enhance the capacity of researchers and research institutions to deliver timely, demand-driven, trade-related research to policymakers in the region. During the first phase of support (102568), the Network produced a number of ...

  6. Vulnerability of countries to food-production crises propagating in the virtual water trade network

    Science.gov (United States)

    Tamea, S.; Laio, F.; Ridolfi, L.

    2015-12-01

    In recent years, the international trade of food and agricultural commodities has undergone a marked increase of exchanged volumes and an expansion of the trade network. This globalization of trade has both positive and negative effects, but the interconnectedness and external dependency of countries generate complex dynamics which are often difficult to understand and model. In this study we consider the volume of water used for the production of agricultural commodities, virtually exchanged among countries through commodity trade, i.e. the virtual water trade. Then, we set up a parsimonious mechanistic model describing the propagation, into the global trade network, of food-production crises generated locally by a social, economic or environmental event (such as war, economic crisis, drought, pest). The model, accounting for the network structure and the virtual water balance of all countries, bases on rules derived from observed virtual water flows and on data-based and statistically verified assumption. It is also tested on real case studies that prove its capability to capture the main features of crises propagation. The model is then employed as the basis for the development of an index of country vulnerability, measuring the exposure of countries to crises propagating in the virtual water trade network. Results of the analysis are discussed within the context of socio-economic and environmental conditions of countries, showing that not only water-scarce, but also wealthy and globalized countries, are among the most vulnerable to external crises. The temporal analysis for the period 1986-2011 reveals that the global average vulnerability has strongly increased over time, confirming the increased exposure of countries to external crises which may occur in the virtual water trade network.

  7. Trade integration and trade imbalances in the European Union: a network perspective.

    Directory of Open Access Journals (Sweden)

    Gautier M Krings

    Full Text Available We study the ever more integrated and ever more unbalanced trade relationships between European countries. To better capture the complexity of economic networks, we propose two global measures that assess the trade integration and the trade imbalances of the European countries. These measures are the network (or indirect counterparts to traditional (or direct measures such as the trade-to-GDP (Gross Domestic Product and trade deficit-to-GDP ratios. Our indirect tools account for the European inter-country trade structure and follow (i a decomposition of the global trade flow into elementary flows that highlight the long-range dependencies between exporting and importing economies and (ii the commute-time distance for trade integration, which measures the impact of a perturbation in the economy of a country on another country, possibly through intermediate partners by domino effect. Our application addresses the impact of the launch of the Euro. We find that the indirect imbalance measures better identify the countries ultimately bearing deficits and surpluses, by neutralizing the impact of trade transit countries, such as the Netherlands. Among others, we find that ultimate surpluses of Germany are quite concentrated in only three partners. We also show that for some countries, the direct and indirect measures of trade integration diverge, thereby revealing that these countries (e.g. Greece and Portugal trade to a smaller extent with countries considered as central in the European Union network.

  8. Trade Integration and Trade Imbalances in the European Union: A Network Perspective

    Science.gov (United States)

    Krings, Gautier M.; Carpantier, Jean-François; Delvenne, Jean-Charles

    2014-01-01

    We study the ever more integrated and ever more unbalanced trade relationships between European countries. To better capture the complexity of economic networks, we propose two global measures that assess the trade integration and the trade imbalances of the European countries. These measures are the network (or indirect) counterparts to traditional (or direct) measures such as the trade-to-GDP (Gross Domestic Product) and trade deficit-to-GDP ratios. Our indirect tools account for the European inter-country trade structure and follow (i) a decomposition of the global trade flow into elementary flows that highlight the long-range dependencies between exporting and importing economies and (ii) the commute-time distance for trade integration, which measures the impact of a perturbation in the economy of a country on another country, possibly through intermediate partners by domino effect. Our application addresses the impact of the launch of the Euro. We find that the indirect imbalance measures better identify the countries ultimately bearing deficits and surpluses, by neutralizing the impact of trade transit countries, such as the Netherlands. Among others, we find that ultimate surpluses of Germany are quite concentrated in only three partners. We also show that for some countries, the direct and indirect measures of trade integration diverge, thereby revealing that these countries (e.g. Greece and Portugal) trade to a smaller extent with countries considered as central in the European Union network. PMID:24465381

  9. Post World War II trends in tropical Pacific surface trades

    Science.gov (United States)

    Harrison, D. E.

    1989-01-01

    Multidecadal time series of surface winds from central tropical Pacific islands are used to compute trends in the trade winds between the end of WWII and 1985. Over this period, averaged over the whole region, there is no statistically significant trend in speed or zonal or meridional wind (or pseudostress). However, there is some tendency, within a few degrees of the equator, toward weakening of the easterlies and increased meridional flow toward the equator. Anomalous conditions subsequent to the 1972-73 ENSO event make a considerable contribution to the long-term trends. The period 1974-80 has been noted previously to have been anomalous, and trends over that period are sharply greater than those over the longer records.

  10. Broadening the benefits of trade: The Latin American trade network ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2011-07-13

    Jul 13, 2011 ... Competitors and their national governments argued that this practice gave Latin American companies an unfair competitive advantage. To offset this "subsidy," foreign governments frequently imposed a countervailing duty or tax on imports. This issue was finally dealt with during the Uruguay Round of trade ...

  11. Networks of global bird invasion altered by regional trade ban

    Science.gov (United States)

    Reino, Luís; Figueira, Rui; Beja, Pedro; Araújo, Miguel B.; Capinha, César; Strubbe, Diederik

    2017-01-01

    Wildlife trade is a major pathway for introduction of invasive species worldwide. However, how exactly wildlife trade influences invasion risk, beyond the transportation of individuals to novel areas, remains unknown. We analyze the global trade network of wild-caught birds from 1995 to 2011 as reported by CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). We found that before the European Union ban on imports of wild-caught birds, declared in 2005, invasion risk was closely associated with numbers of imported birds, diversity of import sources, and degree of network centrality of importer countries. After the ban, fluxes of global bird trade declined sharply. However, new trade routes emerged, primarily toward the Nearctic, Afrotropical, and Indo-Malay regions. Although regional bans can curtail invasion risk globally, to be fully effective and prevent rerouting of trade flows, bans should be global. PMID:29181443

  12. Google matrix analysis of the multiproduct world trade network

    Science.gov (United States)

    Ermann, Leonardo; Shepelyansky, Dima L.

    2015-04-01

    Using the United Nations COMTRADE database [United Nations Commodity Trade Statistics Database, available at: http://comtrade.un.org/db/. Accessed November (2014)] we construct the Google matrix G of multiproduct world trade between the UN countries and analyze the properties of trade flows on this network for years 1962-2010. This construction, based on Markov chains, treats all countries on equal democratic grounds independently of their richness and at the same time it considers the contributions of trade products proportionally to their trade volume. We consider the trade with 61 products for up to 227 countries. The obtained results show that the trade contribution of products is asymmetric: some of them are export oriented while others are import oriented even if the ranking by their trade volume is symmetric in respect to export and import after averaging over all world countries. The construction of the Google matrix allows to investigate the sensitivity of trade balance in respect to price variations of products, e.g. petroleum and gas, taking into account the world connectivity of trade links. The trade balance based on PageRank and CheiRank probabilities highlights the leading role of China and other BRICS countries in the world trade in recent years. We also show that the eigenstates of G with large eigenvalues select specific trade communities.

  13. Trade networks evolution under the conditions of stock market globalization

    Directory of Open Access Journals (Sweden)

    Kopylova Olga Volodymyrivna

    2016-12-01

    Full Text Available The modern perception of the stock market in terms of information technologies rapid development and under the institutionalists influence has been significantly modified and becomes multifaceted. It was detected that the main function of the market is activated, information asymmetry is minimized and more advanced financial architecture space is formed through trade networks. Formation of the modern trade networks has started on the basis of the old infrastructure, that had the highest tendency to self-organization and adaptation. The proposed architecture of trade networks of the stock market has a very clear vector of subordination – from top to bottom and has a number of positive points.

  14. Asia-Pacific Research and Training Network on Trade (ARTNET ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Small and Medium Enterprises (SME) Adjustments to Information Technology (IT) in Trade Facilitation: The South Korean Experience. Documents. Asia - Pacific Research and Training Network on Trade (ARTNeT) newsletter, volume 6, issue 1 / October 2009 - January 2010. Documents. Asia - Pacific Research and ...

  15. Hierarchicality of trade flow networks reveals complexity of products.

    Directory of Open Access Journals (Sweden)

    Peiteng Shi

    Full Text Available With globalization, countries are more connected than before by trading flows, which amounts to at least 36 trillion dollars today. Interestingly, around 30-60 percents of exports consist of intermediate products in global. Therefore, the trade flow network of particular product with high added values can be regarded as value chains. The problem is weather we can discriminate between these products from their unique flow network structure? This paper applies the flow analysis method developed in ecology to 638 trading flow networks of different products. We claim that the allometric scaling exponent η can be used to characterize the degree of hierarchicality of a flow network, i.e., whether the trading products flow on long hierarchical chains. Then, it is pointed out that the flow networks of products with higher added values and complexity like machinary, transport equipment etc. have larger exponents, meaning that their trade flow networks are more hierarchical. As a result, without the extra data like global input-output table, we can identify the product categories with higher complexity, and the relative importance of a country in the global value chain by the trading network solely.

  16. Fair-trade network and its main actors

    Directory of Open Access Journals (Sweden)

    Brisa Ceccon Rocha

    2010-06-01

    Full Text Available This paper briefly describes fair-trade phenomenon and its share in the worldwide trade. At the same time, examines the role of different actors that participate in fairtrade network, from the producers down to the consumers. Finally it evaluates the relationships among these actors and the challenges that they face in order to ameliorate the system and improve the producer condition of participation, a fundamental elements of this network.

  17. Structure and Controls of the Global Virtual Water Trade Network

    Science.gov (United States)

    Suweis, S. S.

    2011-12-01

    Recurrent or ephemeral water shortages are a crucial global challenge, in particular because of their impacts on food production. The global character of this challenge is reflected in the trade among nations of virtual water, i.e. the amount of water used to produce a given commodity. We build, analyze and model the network describing the transfer of virtual water between world nations for staple food products. We find that all the key features of the network are well described by a model, the fitness model, that reproduces both the topological and weighted properties of the global virtual water trade network, by assuming as sole controls each country's gross domestic product and yearly rainfall on agricultural areas. We capture and quantitatively describe the high degree of globalization of water trade and show that a small group of nations play a key role in the connectivity of the network and in the global redistribution of virtual water. Finally, we illustrate examples of prediction of the structure of the network under future political, economic and climatic scenarios, suggesting that the crucial importance of the countries that trade large volumes of water will be strengthened. Our results show the importance of incorporating a network framework in the study of virtual water trades and provide a model to study the structure and resilience of the GVWTN under future scenarios for social, economic and climate change.

  18. Vulnerability to shocks in the global seafood trade network

    Science.gov (United States)

    Gephart, Jessica A.; Rovenskaya, Elena; Dieckmann, Ulf; Pace, Michael L.; Brännström, Åke

    2016-03-01

    Trade can allow countries to overcome local or regional losses (shocks) to their food supply, but reliance on international food trade also exposes countries to risks from external perturbations. Countries that are nutritionally or economically dependent on international trade of a commodity may be adversely affected by such shocks. While exposure to shocks has been studied in financial markets, communication networks, and some infrastructure systems, it has received less attention in food-trade networks. Here, we develop a forward shock-propagation model to quantify how trade flows are redistributed under a range of shock scenarios and assess the food-security outcomes by comparing changes in national fish supplies to indices of each country’s nutritional fish dependency. Shock propagation and distribution among regions are modeled on a network of historical bilateral seafood trade data from UN Comtrade using 205 reporting territories grouped into 18 regions. In our model exposure to shocks increases with total imports and the number of import partners. We find that Central and West Africa are the most vulnerable to shocks, with their vulnerability increasing when a willingness-to-pay proxy is included. These findings suggest that countries can reduce their overall vulnerability to shocks by reducing reliance on imports and diversifying food sources. As international seafood trade grows, identifying these types of potential risks and vulnerabilities is important to build a more resilient food system.

  19. Dynamics of the global virtual water trade network

    Science.gov (United States)

    Dalin, C.; Konar, M.; Hanasaki, N.; Rodriguez-Iturbe, I.

    2011-12-01

    Water resources are under increasing pressure from population growth, socio-economic development and climate change. Since agriculture is by far the most freshwater-consuming process, the international food trade may be a way of transferring water resources to water-scarce countries, and of saving water globally by encouraging trade from water-efficient countries to less water-efficient countries. We applied complex network theory to analyze the dynamics of the global virtual water trade network. Our goal was to assess how the properties of the virtual water trade network changed in time, and how these changes are related to national policies, economic and weather conditions or events. We found that, on average, the number of trade partners of each country in the network doubled from 1986 to 2007, while the volume of water associated with food trade tripled. Despite this growth of the network, we found that the shape of the network properties distributions remained similar: for all years studied, the degree distribution is well fitted by an exponential distribution and the strength distribution compares well with a stretched exponential distribution, indicating high heterogeneity of flows between nations. Other global network structure characteristics, such as the power law relationship between node strength and node degree, dissasortative behavior and weighted rich club phenomenon were also stable through the 22 year-period. However, there are significant changes at the country and link scale of analysis. The USA has remained the world's top exporter of virtual water, while, since 2001, China has been the world's largest virtual water importer, a position formerly occupied by Russia and Japan. The sharp increase in China's virtual water imports is mostly due to its increased soybean imports, following a domestic policy shift regarding the soy trade in 2000 and 2001. Importantly, the food trade has led to enhanced savings in global water resources over the last few

  20. Cyber War Game in Temporal Networks

    Science.gov (United States)

    2016-02-09

    and (b) q = 0.7, we plot the resource consumption as a function of the number of compromised nodes for three different strategies. (c) Number of...feasible solution as a function of the number of compromised nodes for two different ER networks. (d) Resource consumption as a function of the number of... consumption of defenders as a function of average degree for four pairs of strategies of defenders and attackers with high network temporality p = 0.5. (d

  1. Trusted intermediating agents in electronic trade networks

    NARCIS (Netherlands)

    T.B. Klos (Tomas); F. Alkemade (Floortje)

    2005-01-01

    htmlabstract Electronic commerce and trading of information goods significantly impact the role of intermediaries: consumers can bypass intermediating agents by forming direct links to producers. One reason that traditional intermediaries can still make a profit, is that they have more knowledge of

  2. Aflatoxin regulations in a network of global maize trade.

    Directory of Open Access Journals (Sweden)

    Felicia Wu

    Full Text Available Worldwide, food supplies often contain unavoidable contaminants, many of which adversely affect health and hence are subject to regulations of maximum tolerable levels in food. These regulations differ from nation to nation, and may affect patterns of food trade. We soughtto determine whether there is an association between nations' food safety regulations and global food trade patterns, with implications for public health and policymaking. We developed a network model of maize trade around the world. From maize import/export data for 217 nations from 2000-2009, we calculated basic statistics on volumes of trade; then examined how regulations of aflatoxin, a common contaminant of maize, are similar or different between pairs of nations engaging in significant amounts of maize trade. Globally, market segregation appears to occur among clusters of nations. The United States is at the center of one cluster; European countries make up another cluster with hardly any maize trade with the US; and Argentina, Brazil, and China export maize all over the world. Pairs of nations trading large amounts of maize have very similar aflatoxin regulations: nations with strict standards tend to trade maize with each other, while nations with more relaxed standards tend to trade maize with each other. Rarely among the top pairs of maize-trading nations do total aflatoxin standards (standards based on the sum of the levels of aflatoxins B(1, B(2, G(1, and G(2 differ by more than 5 µg/kg. These results suggest that, globally, separate maize trading communities emerge; and nations tend to trade with other nations that have very similar food safety standards.

  3. Virtual water trade and country vulnerability: A network perspective

    Science.gov (United States)

    Sartori, Martina; Schiavo, Stefano

    2015-04-01

    This work investigates the relationship between countries' participation in virtual water trade and their vulnerability to external shocks from a network perspective. In particular, we investigate whether (i) possible sources of local national crises may interact with the system, propagating through the network and affecting the other countries involved; (ii) the topological characteristics of the international agricultural trade network, translated into virtual water-equivalent flows, may favor countries' vulnerability to external crises. Our work contributes to the debate on the potential merits and risks associated with openness to trade in agricultural and food products. On the one hand, trade helps to ensure that even countries with limited water (and other relevant) resources have access to sufficient food and contribute to the global saving of water. On the other hand, there are fears that openness may increase the vulnerability to external shocks and thus make countries worse off. Here we abstract from political considerations about food sovereignty and independence from imports and focus instead on investigating whether the increased participation in global trade that the world has witnessed in the last 30 years has made the system more susceptible to large shocks. Our analysis reveals that: (i) the probability of larger supply shocks has not increased over time; (ii) the topological characteristics of the VW network are not such as to favor the systemic risk associated with shock propagation; and (iii) higher-order interconnections may reveal further important information about the structure of a network. Regarding the first result, fluctuations in output volumes, among the sources of shock analyzed here, are more likely to generate some instability. The first implication is that, on one side, past national or regional economic crises were not necessarily brought about or strengthened by global trade. The second, more remarkable, implication is that, on

  4. Randomizing bipartite networks: the case of the World Trade Web

    CERN Document Server

    Saracco, Fabio; Gabrielli, Andrea; Squartini, Tiziano

    2015-01-01

    Within the last fifteen years, network theory has been successfully applied both to natural sciences and to socioeconomic disciplines. In particular, bipartite networks have been recognized to provide a particularly insightful representation of many systems, ranging from mutualistic networks in ecology to trade networks in economy, whence the need of a pattern detection-oriented analysis in order to identify statistically-significant structural properties. Such an analysis rests upon the definition of suitable null models, i.e. upon the choice of the portion of network structure to be preserved while randomizing everything else. However, quite surprisingly, little work has been done so far to define null models for real bipartite networks. The aim of the present work is to fill this gap, extending a recently-proposed method to randomize monopartite networks to bipartite networks. While the proposed formalism is perfectly general, we apply our method to the binary, undirected, bipartite representation of the W...

  5. Modelling trading networks and the role of trust

    Science.gov (United States)

    Barrio, Rafael A.; Govezensky, Tzipe; Ruiz-Gutiérrez, Élfego; Kaski, Kimmo K.

    2017-04-01

    We present a simple dynamical model for describing trading interactions between agents in a social network by considering only two dynamical variables, namely money and goods or services, that are assumed conserved over the whole time span of the agents' trading transactions. A key feature of the model is that agent-to-agent transactions are governed by the price in units of money per goods, which is dynamically changing, and by a trust variable, which is related to the trading history of each agent. All agents are able to sell or buy, and the decision to do either has to do with the level of trust the buyer has in the seller, the price of the goods and the amount of money and goods at the disposal of the buyer. Here we show the results of extensive numerical calculations under various initial conditions in a random network of agents and compare the results with the available related data. In most cases the agreement between the model results and real data turns out to be fairly good, which allow us to draw some general conclusions as how different trading strategies could affect the distribution of wealth in different kinds of societies. Our calculations reveal the striking effects of trust in commercial relations, namely that trust makes trading links more robust and the wealth distribution more even as well as allows for the existence of a healthy middle class.

  6. The Evolution of World Trade from 1995 to 2014 : A Network Approach

    NARCIS (Netherlands)

    Cepeda, Fredy; Gamboa, Freddy; Leon Rincon, Carlos; Rincon, Hernan

    2017-01-01

    This paper employs network analysis to study world trade from 1995 to 2014. We focus on the main connective features of the world trade network (WTN) and their dynamics. Results suggest that countries’ efforts to attain the benefits of trade have resulted in an intertwined network that is

  7. Designing a Rational Distribution Network for Trading Companies

    Directory of Open Access Journals (Sweden)

    Dybskaya V. V.

    2017-09-01

    Full Text Available This article considers the modern methods and approaches to design the company’s distribution network. The authors point out the relevance of this problem for the modern trading and manufacturing companies, give examples of the strategic goal setting of the company in the logistics network reorganization, and the benchmarks of possible economic effects of its conduction. The work reviews the scientific articles of contemporary American, European and Russian authors devoted to the approaches, concerning the implementation of projects for designing a distribution network, methods and models for its optimization. The article concludes that there is no single “language” and an approach to design the logistics networks, with a proper level of detail that takes into account the strategic features and industry specificity of the certain company. The authors propose an algorithm for designing a rational distribution network.

  8. Social networks and trade of services: modelling interregional flows with spatial and network autocorrelation effects

    Science.gov (United States)

    de la Mata, Tamara; Llano, Carlos

    2013-07-01

    Recent literature on border effect has fostered research on informal barriers to trade and the role played by network dependencies. In relation to social networks, it has been shown that intensity of trade in goods is positively correlated with migration flows between pairs of countries/regions. In this article, we investigate whether such a relation also holds for interregional trade of services. We also consider whether interregional trade flows in services linked with tourism exhibit spatial and/or social network dependence. Conventional empirical gravity models assume the magnitude of bilateral flows between regions is independent of flows to/from regions located nearby in space, or flows to/from regions related through social/cultural/ethic network connections. With this aim, we provide estimates from a set of gravity models showing evidence of statistically significant spatial and network (demographic) dependence in the bilateral flows of the trade of services considered. The analysis has been applied to the Spanish intra- and interregional monetary flows of services from the accommodation, restaurants and travel agencies for the period 2000-2009, using alternative datasets for the migration stocks and definitions of network effects.

  9. Link prediction in the network of global virtual water trade

    Science.gov (United States)

    Tuninetti, Marta; Tamea, Stefania; Laio, Francesco; Ridolfi, Luca

    2016-04-01

    Through the international food-trade, water resources are 'virtually' transferred from the country of production to the country of consumption. The international food-trade, thus, implies a network of virtual water flows from exporting to importing countries (i.e., nodes). Given the dynamical behavior of the network, where food-trade relations (i.e., links) are created and dismissed every year, link prediction becomes a challenge. In this study, we propose a novel methodology for link prediction in the virtual water network. The model aims at identifying the main factors (among 17 different variables) driving the creation of a food-trade relation between any two countries, along the period between 1986 and 2011. Furthermore, the model can be exploited to investigate the network configuration in the future, under different possible (climatic and demographic) scenarios. The model grounds the existence of a link between any two nodes on the link weight (i.e., the virtual water flow): a link exists when the nodes exchange a minimum (fixed) volume of virtual water. Starting from a set of potential links between any two nodes, we fit the associated virtual water flows (both the real and the null ones) by means of multivariate linear regressions. Then, links with estimated flows higher than a minimum value (i.e., threshold) are considered active-links, while the others are non-active ones. The discrimination between active and non-active links through the threshold introduces an error (called link-prediction error) because some real links are lost (i.e., missed links) and some non-existing links (i.e., spurious links) are inevitably introduced in the network. The major drivers are those significantly minimizing the link-prediction error. Once the structure of the unweighted virtual water network is known, we apply, again, linear regressions to assess the major factors driving the fluxes traded along (modelled) active-links. Results indicate that, on the one hand

  10. Does Human Migration Affect International Trade? A Complex-Network Perspective

    Science.gov (United States)

    Fagiolo, Giorgio; Mastrorillo, Marina

    2014-01-01

    This paper explores the relationships between international human migration and merchandise trade using a complex-network approach. We firstly compare the topological structure of worldwide networks of human migration and bilateral trade over the period 1960–2000. Next, we ask whether pairs of countries that are more central in the migration network trade more. We show that: (i) the networks of international migration and trade are strongly correlated, and such correlation can be mostly explained by country economic/demographic size and geographical distance; (ii) centrality in the international-migration network boosts bilateral trade; (iii) intensive forms of country centrality are more trade enhancing than their extensive counterparts. Our findings suggest that bilateral trade between any two countries is not only affected by the presence of migrants from either countries, but also by their relative embeddedness in the complex web of corridors making up the network of international human migration. PMID:24828376

  11. Beyond frontiers: Ancient Rome and the Eurasian trade networks

    Directory of Open Access Journals (Sweden)

    Marco Galli

    2017-01-01

    Full Text Available During the second half of the 19th century, the Roman Empire was already considered one of the key players inside the Eurasian networks. This research focuses on four relevant points. From a historiographical perspective, the reconstruction of the trading routes represented a central theme in the history of the relationship between the Roman Empire and the Far East. Imagining a plurality of itineraries and combinations of overland and sea routes, it is possible to reconstruct a complex reality in which the Eurasian networks during the Early Roman Empire developed. As far as economics is concerned, new documentation demonstrates the wide range and the extraordinary impact of the Eastern products on Roman markets. A final focus on the process of Chinese silk unravelling and reweaving provides an important clue on how complex and absolutely not mono-directional were the interactions and the exchanges in the Eurasian networks during the first centuries of the Roman Empire.

  12. Power Grid Network Evolutions for Local Energy Trading

    CERN Document Server

    Pagani, Giuliano Andrea

    2012-01-01

    The shift towards a energy Grid dominated by prosumers (consumers and producers of energy) will inevitably have repercussions on the distribution infrastructure. Today it is a hierarchical one designed to deliver energy from large scale facilities to end-users. Tomorrow it will be a capillary infrastructure at the medium and Low Voltage levels that will support local energy trading among prosumers. In our previous work, we analyzed the Dutch Power Grid and made an initial analysis of the economic impact topological properties have on decentralized energy trading. In this paper, we go one step further and investigate how different networks topologies and growth models facilitate the emergence of a decentralized market. In particular, we show how the connectivity plays an important role in improving the properties of reliability and path-cost reduction. From the economic point of view, we estimate how the topological evolutions facilitate local electricity distribution, taking into account the main cost ingredi...

  13. The QAP weighted network analysis method and its application in international services trade

    Science.gov (United States)

    Xu, Helian; Cheng, Long

    2016-04-01

    Based on QAP (Quadratic Assignment Procedure) correlation and complex network theory, this paper puts forward a new method named QAP Weighted Network Analysis Method. The core idea of the method is to analyze influences among relations in a social or economic group by building a QAP weighted network of networks of relations. In the QAP weighted network, a node depicts a relation and an undirect edge exists between any pair of nodes if there is significant correlation between relations. As an application of the QAP weighted network, we study international services trade by using the QAP weighted network, in which nodes depict 10 kinds of services trade relations. After the analysis of international services trade by QAP weighted network, and by using distance indicators, hierarchy tree and minimum spanning tree, the conclusion shows that: Firstly, significant correlation exists in all services trade, and the development of any one service trade will stimulate the other nine. Secondly, as the economic globalization goes deeper, correlations in all services trade have been strengthened continually, and clustering effects exist in those services trade. Thirdly, transportation services trade, computer and information services trade and communication services trade have the most influence and are at the core in all services trade.

  14. The role of conflict minerals, artisanal mining, and informal trading networks in African intrastate and regional conflicts

    Science.gov (United States)

    Chirico, Peter G.; Malpeli, Katherine C.

    2014-01-01

    The relationship between natural resources and armed conflict gained public and political attention in the 1990s, when it became evident that the mining and trading of diamonds were connected with brutal rebellions in several African nations. Easily extracted resources such as alluvial diamonds and gold have been and continue to be exploited by rebel groups to fund their activities. Artisanal and small-scale miners operating under a quasi-legal status often mine these mineral deposits. While many African countries have legalized artisanal mining and established flow chains through which production is intended to travel, informal trading networks frequently emerge in which miners seek to evade taxes and fees by selling to unauthorized buyers. These networks have the potential to become international in scope, with actors operating in multiple countries. The lack of government control over the artisanal mining sector and the prominence of informal trade networks can have severe social, political, and economic consequences. In the past, mineral extraction fuelled violent civil wars in Sierra Leone, Liberia, and Angola, and it continues to do so today in several other countries. The significant influence of the informal network that surrounds artisanal mining is therefore an important security concern that can extend across borders and have far-reaching impacts.

  15. Scaling up: human genetics as a Cold War network.

    Science.gov (United States)

    Lindee, Susan

    2014-09-01

    In this commentary I explore how the papers here illuminate the processes of collection that have been so central to the history of human genetics since 1945. The development of human population genetics in the Cold War period produced databases and biobanks that have endured into the present, and that continue to be used and debated. In the decades after the bomb, scientists collected and transferred human biological materials and information from populations of interest, and as they moved these biological resources or biosocial resources acquired new meanings and uses. The papers here collate these practices and map their desires and ironies. They explore how a large international network of geneticists, biological anthropologists, virologists and other physicians and scientists interacted with local informants, research subjects and public officials. They also track the networks and standards that mobilized the transfer of information, genealogies, tissue and blood samples. As Joanna Radin suggests here, the massive collections of human biological materials and data were often understood to be resources for an "as-yet-unknown" future. The stories told here contain elements of surveillance, extraction, salvage and eschatology. Copyright © 2014 Elsevier Ltd. All rights reserved.

  16. Interethnic Mayan and Afro-descendent Relations through War, Trade, and Slavery during the Mayan Caste Wars, 1848-1901

    OpenAIRE

    Serrano Nájera, José Luis

    2017-01-01

    The broader purpose of this paper is to contribute to an awareness of the cultural and social role of African descent peoples in the history of late colonial and nineteenth century Mexico. I specifically focus on the ethnic relations between African descent peoples and Mayans in communities of the Yucatán peninsula during the 1847 to 1901 guerras de casta or Caste Wars. This period offers unique insights to interethnic relations in a region and time where Indigenous peoples maintained autonom...

  17. Grand canonical validation of the bipartite international trade network

    Science.gov (United States)

    Straka, Mika J.; Caldarelli, Guido; Saracco, Fabio

    2017-08-01

    Devising strategies for economic development in a globally competitive landscape requires a solid and unbiased understanding of countries' technological advancements and similarities among export products. Both can be addressed through the bipartite representation of the International Trade Network. In this paper, we apply the recently proposed grand canonical projection algorithm to uncover country and product communities. Contrary to past endeavors, our methodology, based on information theory, creates monopartite projections in an unbiased and analytically tractable way. Single links between countries or products represent statistically significant signals, which are not accounted for by null models such as the bipartite configuration model. We find stable country communities reflecting the socioeconomic distinction in developed, newly industrialized, and developing countries. Furthermore, we observe product clusters based on the aforementioned country groups. Our analysis reveals the existence of a complicated structure in the bipartite International Trade Network: apart from the diversification of export baskets from the most basic to the most exclusive products, we observe a statistically significant signal of an export specialization mechanism towards more sophisticated products.

  18. Application of a Shallow Neural Network to Short-Term Stock Trading

    OpenAIRE

    Madahar, Abhinav; Ma, Yuze; Patel, Kunal

    2017-01-01

    Machine learning is increasingly prevalent in stock market trading. Though neural networks have seen success in computer vision and natural language processing, they have not been as useful in stock market trading. To demonstrate the applicability of a neural network in stock trading, we made a single-layer neural network that recommends buying or selling shares of a stock by comparing the highest high of 10 consecutive days with that of the next 10 days, a process repeated for the stock's ye...

  19. Winning the war on drugs in Mexico? Toward an integrated approach to the illegal drug trade

    OpenAIRE

    Reyes Garces, Alfonso.

    2009-01-01

    Approved for public release, distribution unlimited The illegal drug trade has been present in Mexico since the beginning of the twentieth century when prohibition of the opium trade started. Since then, the social harm of the illegal drug trade in all its forms has been constantly increasing. Today, the most obvious example of the social harm of the illegal drug trade in Mexico is drug-related crime. As a result, Mexican authorities have launched a frontal attack against the drug cartels ...

  20. Tracing Southern Cosmopolitanisms: the intersecting networks of Islam, Trade Unions, Gender and Communism, 1945-1965

    Directory of Open Access Journals (Sweden)

    Heather Goodall

    2011-11-01

    Full Text Available At the end of World War 2, there were high hopes across the Indian Ocean for a new world in which the relationships between working people would mean more than the borders which separated them. This paper will explore the fate of the hopes for new worlds, in the decades after 1945, by following the uneven relationships among working class Australians, Indonesians and Indians in the aftermath of an intense political struggle in Australia from 1945 to 1949 in support of Indonesian independence. They had been brought together by intersections between the networks established through colonialism, like trade unions, communism and feminism, with those having much longer histories, like Islam. The men and women in this Australian setting expressed their vision in 1945 for a future of universal and transnational networks across the Indian Ocean which would continue the alliances they had found so fruitful. Today their experiences as well as their hopes might be called cosmopolitanism – they expected that the person-to-person friendships they were forming could be sustained and be able to negotiate the differences between them to achieve common aims. Although these hopes for new futures of universal alliances and collaborations were held passionately in the 1940s, all seem to have died by 1970, diverted by newly independent national trajectories and defeated by the Cold War. Yet many of the relationships persisted far longer than might be expected and their unravelling was not inevitable. This paper will trace the course of a few of the relationships which began in the heat of the campaigns in Australia, 1943 to 1945, in order to identify the continuing common ground as well as the rising tensions which challenged them.

  1. The Moves of a Bajau Middlewomen: Understanding the Disparity between Trade Networks and Marine Conservation.

    NARCIS (Netherlands)

    Pauwelussen, A.P.

    2015-01-01

    At the interface of Indonesia and Malaysia, border-crossing maritime trade appears to elude attempts to conserve marine resources. In Berau district (East Kalimantan) attempts to protect coastal waters from illegal fishing and trade fail to correspond with mobile trade networks. In this article, I

  2. Exploring risk judgments in a trade dispute using Bayesian networks.

    Science.gov (United States)

    Wintle, Bonnie C; Nicholson, Ann

    2014-06-01

    Bayesian networks (BNs) are graphical modeling tools that are generally recommended for exploring what-if scenarios, visualizing systems and problems, and for communication between stakeholders during decision making. In this article, we investigate their potential for exploring different perspectives in trade disputes. To do so, we draw on a specific case study that was arbitrated by the World Trade Organization (WTO): the Australia-New Zealand apples dispute. The dispute centered on disagreement about judgments contained within Australia's 2006 import risk analysis (IRA). We built a range of BNs of increasing complexity that modeled various approaches to undertaking IRAs, from the basic qualitative and semi-quantitative risk analyses routinely performed in government agencies, to the more complex quantitative simulation undertaken by Australia in the apples dispute. We found the BNs useful for exploring disagreements under uncertainty because they are probabilistic and transparently represent steps in the analysis. Different scenarios and evidence can easily be entered. Specifically, we explore the sensitivity of the risk output to different judgments (particularly volume of trade). Thus, we explore how BNs could usefully aid WTO dispute settlement. We conclude that BNs are preferable to basic qualitative and semi-quantitative risk analyses because they offer an accessible interface and are mathematically sound. However, most current BN modeling tools are limited compared with complex simulations, as was used in the 2006 apples IRA. Although complex simulations may be more accurate, they are a black box for stakeholders. BNs have the potential to be a transparent aid to complex decision making, but they are currently computationally limited. Recent technological software developments are promising. © 2014 Society for Risk Analysis.

  3. The World Trade Web: A Multiple-Network Perspective

    CERN Document Server

    Sgrignoli, Paolo

    2014-01-01

    International Trade (IT) plays a fundamental role in today's economy: by connecting world countries production and consumption processes, it radically contributes in shaping their economy and development path. Although its evolving structure and determinants have been widely analyzed in the literature, much less has been done to understand its interplay with other complex phenomena. The aim of this work is, precisely in this direction, to study the relations of IT with International Migration (IM) and Foreign Direct Investments (FDI). In both cases the procedure used is to first approach the problem in a multiple-networks perspective and than deepen the analysis by using ad hoc econometrics techniques. With respect to IM, a general positive correlation with IT is highlighted and product categories for which this effect is stronger are identified and cross-checked with previous classifications. Next, employing spatial econometric techniques and proposing a new way to define country neighbors based on the most ...

  4. Measuring the dissimilarity of multiplex networks: An empirical study of international trade networks

    Science.gov (United States)

    Zhang, Xiaohang; Cui, Huiyuan; Zhu, Ji; Du, Yu; Wang, Qi; Shi, Wenhua

    2017-02-01

    In recent years, multiplex networks are becoming a research focus in the domain of complex networks. Discovering significant correlations between layers in multiplex networks can provide an insight to their structures. In this study, we propose some methods to measure the dissimilarities of different layers in directed and weighted multiplex networks. The dissimilarity is defined on two levels: node level and layer level. The node dissimilarity is computed based on the distance of the probability distribution of its link weights vectors in different layers; and the layer-level dissimilarity is the weighted sum of the nodes' dissimilarities. Furthermore, the dissimilarity is disintegrated into the connection-based dissimilarity and the weight-based dissimilarity, which represent the topological structure changes and the link weight changes, respectively. The proposed methods are applied to international trade networks.

  5. Asia-Pacific Research and Training Network on Trade (ARTNET ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Given the complexity of the trade and investment environment in the region, ARTNET will explore the interaction between trade, investment, competition and other domestic policies. ... Small and Medium Enterprises (SME) Adjustments to Information Technology (IT) in Trade Facilitation: The South Korean Experience.

  6. Integrated modeling of the European trade and transport network

    NARCIS (Netherlands)

    Hu, J.; Ivanova, O.

    2013-01-01

    Trade and transport statistics are two sides of the same coin. Ideally we would like to have the data on the trade flow between two countries in combination with the information about the split of this flow between various (multi-modal) routes linking the pair of countries. In reality trade and

  7. Dynamics of the Global Wheat Trade Network and Resilience to Shocks.

    Science.gov (United States)

    Fair, Kathyrn R; Bauch, Chris T; Anand, Madhur

    2017-08-03

    Agri-food trade networks are increasingly vital to human well-being in a globalising world. Models can help us gain insights into trade network dynamics and predict how they might respond to future disturbances such as extreme weather events. Here we develop a preferential attachment (PA) network model of the global wheat trade network. We find that the PA model can replicate the time evolution of crucial wheat trade network metrics from 1986 to 2011. We use the calibrated PA model to predict the response of wheat trade network metrics to shocks of differing length and severity, including both attacks (outward edge removal on high degree nodes) and errors (outward edge removal on randomly selected nodes). We predict that the network will become less vulnerable to attacks but will continue to exhibit low resilience until 2050. Even short-term shocks strongly increase link diversity and cause long-term structural changes that influence the network's response to subsequent shocks. Attacks have a greater impact than errors. However, with repeated attacks, each attack has a lesser impact than the previous attack. We conclude that dynamic models of multi-annual, commodity-specific networks should be further developed to gain insight into possible futures of global agri-food trade networks.

  8. Modeling past and future structure of the global virtual water trade network

    Science.gov (United States)

    Dalin, C.; Suweis, S.; Konar, M.; Hanasaki, N.; Rodriguez-Iturbe, I.

    2012-12-01

    Climate change and socio-economic development place an increasing pressure on essential natural resources, such as arable land and freshwater. The international food trade can save water globally by redistributing commodities produced relatively more water-efficiently. We focus on the global virtual water trade network associated with international staple food trade from 1986-2008. This study aims to determine which variables control the network's structure and temporal evolution, and to estimate changes in the network under future scenarios. Our fitness model reproduces both the topological and weighted characteristics of the network for the whole period. Undirected and directed network properties are well reproduced in each year, assuming as sole controls each nation's GDP, mean annual rainfall, agricultural area and population. The future structure of the network is estimated using climate and socio-economic projections, showing that volumes of virtual water traded will become increasingly heterogeneous and the importance of dominant importing nations will further strengthen.

  9. WAR

    DEFF Research Database (Denmark)

    Þórarinsson, Elfar; Lindgreen, Stinus

    2008-01-01

    We present an easy-to-use webserver that makes it possible to simultaneously use a number of state of the art methods for performing multiple alignment and secondary structure prediction for noncoding RNA sequences. This makes it possible to use the programs without having to download the code an...... into account is also calculated. This website is free and open to all users and there is no login requirement. The webserver can be found at: http://genome.ku.dk/resources/war....

  10. Strength of weak layers in cascading failures on multiplex networks: case of the international trade network

    Science.gov (United States)

    Lee, Kyu-Min; Goh, K.-I.

    2016-05-01

    Many real-world complex systems across natural, social, and economical domains consist of manifold layers to form multiplex networks. The multiple network layers give rise to nonlinear effect for the emergent dynamics of systems. Especially, weak layers that can potentially play significant role in amplifying the vulnerability of multiplex networks might be shadowed in the aggregated single-layer network framework which indiscriminately accumulates all layers. Here we present a simple model of cascading failure on multiplex networks of weight-heterogeneous layers. By simulating the model on the multiplex network of international trades, we found that the multiplex model produces more catastrophic cascading failures which are the result of emergent collective effect of coupling layers, rather than the simple sum thereof. Therefore risks can be systematically underestimated in single-layer network analyses because the impact of weak layers can be overlooked. We anticipate that our simple theoretical study can contribute to further investigation and design of optimal risk-averse real-world complex systems.

  11. Integrating power and reserve trade in electricity networks

    NARCIS (Netherlands)

    N.F. Höning (Nicolas); H. Noot (Han); J.A. La Poutré (Han)

    2011-01-01

    textabstractIn power markets, the trade of reserve energy will become more important as more intermittent generation is traded. In this work, we propose a novel bidding mechanism for the integration of power and reserve markets. It adds expressivity to reserve bids and facilitates planning.

  12. International Trade Modelling Using Open Flow Networks: A Flow-Distance Based Analysis.

    Science.gov (United States)

    Shen, Bin; Zhang, Jiang; Li, Yixiao; Zheng, Qiuhua; Li, Xingsen

    2015-01-01

    This paper models and analyzes international trade flows using open flow networks (OFNs) with the approaches of flow distances, which provide a novel perspective and effective tools for the study of international trade. We discuss the establishment of OFNs of international trade from two coupled viewpoints: the viewpoint of trading commodity flow and that of money flow. Based on the novel model with flow distance approaches, meaningful insights are gained. First, by introducing the concepts of trade trophic levels and niches, countries' roles and positions in the global supply chains (or value-added chains) can be evaluated quantitatively. We find that the distributions of trading "trophic levels" have the similar clustering pattern for different types of commodities, and summarize some regularities between money flow and commodity flow viewpoints. Second, we find that active and competitive countries trade a wide spectrum of products, while inactive and underdeveloped countries trade a limited variety of products. Besides, some abnormal countries import many types of goods, which the vast majority of countries do not need to import. Third, harmonic node centrality is proposed and we find the phenomenon of centrality stratification. All the results illustrate the usefulness of the model of OFNs with its network approaches for investigating international trade flows.

  13. The Rise of China in the International Trade Network: A Community Core Detection Approach

    CERN Document Server

    Zhu, Zhen; Chessa, Alessandro; Caldarelli, Guido; Riccaboni, Massimo

    2014-01-01

    Theory of complex networks proved successful in the description of a variety of static networks ranging from biology to computer and social sciences and to economics and finance. Here we use network models to describe the evolution of a particular economic system, namely the International Trade Network (ITN). Previous studies often assume that globalization and regionalization in international trade are contradictory to each other. We re-examine the relationship between globalization and regionalization by viewing the international trade system as an interdependent complex network. We use the modularity optimization method to detect communities and community cores in the ITN during the years 1995-2011. We find rich dynamics over time both inter- and intra-communities. Most importantly, we have a multilevel description of the evolution where the global dynamics (i.e., communities disappear or reemerge) tend to be correlated with the regional dynamics (i.e., community core changes between community members). In...

  14. Quantitative methods of identifying the key nodes in the illegal wildlife trade network.

    Science.gov (United States)

    Patel, Nikkita Gunvant; Rorres, Chris; Joly, Damien O; Brownstein, John S; Boston, Ray; Levy, Michael Z; Smith, Gary

    2015-06-30

    Innovative approaches are needed to combat the illegal trade in wildlife. Here, we used network analysis and a new database, HealthMap Wildlife Trade, to identify the key nodes (countries) that support the illegal wildlife trade. We identified key exporters and importers from the number of shipments a country sent and received and from the number of connections a country had to other countries over a given time period. We used flow betweenness centrality measurements to identify key intermediary countries. We found the set of nodes whose removal from the network would cause the maximum disruption to the network. Selecting six nodes would fragment 89.5% of the network for elephants, 92.3% for rhinoceros, and 98.1% for tigers. We then found sets of nodes that would best disseminate an educational message via direct connections through the network. We would need to select 18 nodes to reach 100% of the elephant trade network, 16 nodes for rhinoceros, and 10 for tigers. Although the choice of locations for interventions should be customized for the animal and the goal of the intervention, China was the most frequently selected country for network fragmentation and information dissemination. Identification of key countries will help strategize illegal wildlife trade interventions.

  15. Rethinking distance in international trade: World Trade Atlas 1870-2013

    CERN Document Server

    García-Pérez, Guillermo; Allard, Antoine; Serrano, M Ángeles

    2015-01-01

    Here, we present the World Trade Atlas 1870-2013, a collection of annual world trade maps in which distances incorporate the different dimensions that affect international trade, beyond mere geography. The atlas provides us with information regarding the long-term evolution of the international trade system and demonstrates that, in terms of trade, the world is not flat, but hyperbolic. The departure from flatness has been increasing since World War I, meaning that differences in trade distances are growing and trade networks are becoming more hierarchical. Smaller-scale economies are moving away from other countries except for the largest economies; meanwhile those large economies are increasing their chances of becoming connected worldwide. At the same time, Preferential Trade Agreements do not fit in perfectly with natural communities within the trade space and have not necessarily reduced internal trade barriers. We discuss an interpretation in terms of globalization, hierarchization, and localization; th...

  16. 77 FR 36305 - Stream Communications Network & Media, Inc.; Order of Suspension of Trading

    Science.gov (United States)

    2012-06-18

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Stream Communications Network & Media, Inc.; Order of Suspension of Trading June 14, 2012. It... concerning the securities of Stream Communications Network & Media, Inc. because it has not filed any...

  17. 77 FR 26796 - Order of Suspension of Trading; Airtrax, Inc., Amedia Networks, Inc., American Business Financial...

    Science.gov (United States)

    2012-05-07

    ... COMMISSION Order of Suspension of Trading; Airtrax, Inc., Amedia Networks, Inc., American Business Financial... information concerning the securities of Amedia Networks, Inc. because it has not filed any periodic reports... there is a lack of current and accurate information concerning the securities of American Business...

  18. International Trade Network: Fractal Properties and Globalization Puzzle

    Science.gov (United States)

    Karpiarz, Mariusz; Fronczak, Piotr; Fronczak, Agata

    2014-12-01

    Globalization is one of the central concepts of our age. The common perception of the process is that, due to declining communication and transport costs, distance becomes less and less important. However, the distance coefficient in the gravity model of trade, which grows in time, indicates that the role of distance increases rather than decreases. This, in essence, captures the notion of the globalization puzzle. Here, we show that the fractality of the international trade system (ITS) provides a simple solution for the puzzle. We argue that the distance coefficient corresponds to the fractal dimension of ITS. We provide two independent methods, the box counting method and spatial choice model, which confirm this statement. Our results allow us to conclude that the previous approaches to solving the puzzle misinterpreted the meaning of the distance coefficient in the gravity model of trade.

  19. International trade network: fractal properties and globalization puzzle.

    Science.gov (United States)

    Karpiarz, Mariusz; Fronczak, Piotr; Fronczak, Agata

    2014-12-12

    Globalization is one of the central concepts of our age. The common perception of the process is that, due to declining communication and transport costs, distance becomes less and less important. However, the distance coefficient in the gravity model of trade, which grows in time, indicates that the role of distance increases rather than decreases. This, in essence, captures the notion of the globalization puzzle. Here, we show that the fractality of the international trade system (ITS) provides a simple solution for the puzzle. We argue that the distance coefficient corresponds to the fractal dimension of ITS. We provide two independent methods, the box counting method and spatial choice model, which confirm this statement. Our results allow us to conclude that the previous approaches to solving the puzzle misinterpreted the meaning of the distance coefficient in the gravity model of trade.

  20. TRANSPORT NETWORKS AND IMPACT ON THE PROGRESS OF TRADE EXCHANGES

    Directory of Open Access Journals (Sweden)

    Elena Ramona TERZEA

    2015-06-01

    Full Text Available The restructuring of the economy as a whole is a key factor determined by the Romanian international trade restructuring. Restructuring process contains elements that are specific to the transformation in a market economy mainly characterized by competitive spirit and by enforcement of competitive advantages. The idea of international trade has been long debated starting with the Smith’s theory of absolute advantages ( Adam, Smith ,1908 to the perspective of the competitiveness presented by David Ricardo(2001 followed by the major paradigm change brought by Porter's Diamond (Michael, Porter 1990. Among the determinants of international trade, especially in order to promote exports, a special importance should be given both to the companies and market’s features and to distance to the country in question, to infrastructure and to access roads. The quality of a country's infrastructure is one of the important factors in the development of international trade relations. Depending on its quality level this factor becomes a driving force the development of which must forego the start of other economy sectors.

  1. The trade-off between wiring cost and network topology in white matter structural networks in health and migraine.

    Science.gov (United States)

    Liu, Jixin; Zhao, Ling; Nan, Jiaofen; Li, Guoying; Xiong, Shiwei; von Deneen, Karen M; Gong, Qiyong; Liang, Fanrong; Qin, Wei; Tian, Jie

    2013-10-01

    The human brain organization of cortical networks has optimized trade-off architecture for the economical minimization of connection distance and maximizing valuable topological properties; however, whether this network configuration is disrupted in chronic migraine remains unknown. Here, employing the diffusion tensor imaging and graph theory approaches to construct white matter networks in 26 patients with migraine (PM) and 26 gender-matched healthy controls (HC), we investigated relationships between structural connectivity, cortical network architecture and anatomical distance in the two groups separately. Compared with the HC group, the patients showed longer global distance connection in PM, with proportionally less short-distance and more medium-distance; correspondingly, the patients showed abnormal global topology in their structural networks, mainly presented as a higher clustering coefficient. Moreover, the abnormal association between these two network features was also found. Intriguingly, the network measure that combined the nodal anatomical distance and network topology could distinguish PM from HC with high accuracy of 90.4%. We also demonstrated a high reproducibility of our findings across different parcellation schemes. Our results demonstrated that long-term migraine may result in a abnormal optimization of a trade-off between wiring cost and network topology in white matter structural networks and highlights the potential for combining spatial and topological aspects as a network marker, which may provide valuable insights into the understanding of brain network reorganization that could be attributed to the underlying pathophysiology resulting from migraine. Crown Copyright © 2013. Published by Elsevier Inc. All rights reserved.

  2. “Crossing steels”. Sword trade networks between Spain and Italy in sixteenth and seventeenth centuries

    OpenAIRE

    Rafael M. Girón Pascual

    2016-01-01

    This paper analyses sword trade between Spain and Italy in sixteenth and seventeenth centuries through the study of two commercial routes used by European commercial networks from two unpublished sources: Archivio di Stato di Firenze and Archivo Historico de Protocolos de Granada. Firstly, we will examine sword importation through Leghorn, port of Florence and Tuscany, from the Spanish ports of Cadiz and Alicante, among others. Secondly, we will analyse Italian sword trade carried out by Geno...

  3. The stability of the international oil trade network from short-term and long-term perspectives

    Science.gov (United States)

    Sun, Qingru; Gao, Xiangyun; Zhong, Weiqiong; Liu, Nairong

    2017-09-01

    To examine the stability of the international oil trade network and explore the influence of countries and trade relationships on the trade stability, we construct weighted and unweighted international oil trade networks based on complex network theory using oil trading data between countries from 1996 to 2014. We analyze the stability of international oil trade network (IOTN) from short-term and long-term aspects. From the short-term perspective, we find that the trade volumes play an important role on the stability. Moreover, the weighted IOTN is stable; however, the unweighted networks can better reflect the actual evolution of IOTN. From the long-term perspective, we identify trade relationships that are maintained during the whole sample period to reveal the situation of the whole international oil trade. We provide a way to quantitatively measure the stability of complex network from short-term and long-term perspectives, which can be applied to measure and analyze trade stability of other goods or services.

  4. FRESH FISH TRADE NETWORKS IN THE STREET MARKETS OF PALMAS, TOCANTINS STATE, BRAZIL

    Directory of Open Access Journals (Sweden)

    Kelly Bessa

    2016-12-01

    Full Text Available This paper focuses on fresh fish trade networks found in the street markets of Palmas, capital of Tocantins state, Brazil, so as to identify the economic agents involved and the various geographical spaces which interact as a result of these networks. Fresh fish trade in Palmas takes place in distributor warehouses, grocery stores, supermarkets and hypermarkets, fish shops, and fishing communities, but it is street markets that constitute the most popular sale venues. Market sellers establish upstream supply networks with sectors in the fish food system (suppliers in primary and secondary production, distribution, and retail, whose interactions generate connections in Palmas (fishermen, distributors, retailers on a local scale, as well as connections with locations in Tocantins and Pará states (fishermen, fisheries, cold storage companies on a regional scale. Sellers also establish downstream trade networks with the end consumer at markets and with establishments in the food and small retail sectors, whose interactions produce mostly local connections, in Palmas and in the Luzimangues district (close to Palmas. Such connections are marked by consumption processes in these urban areas. Key-words: network, fresh fish trade, street markets.

  5. Increasing Susceptibility of the Global Network of Food Trade to Climate Disturbances

    Science.gov (United States)

    Puma, M. J.; Bose, S.; Chon, S.; Cook, B.

    2013-12-01

    Globalization of agriculture through trade liberalization has led to a dramatic transformation of the global network of food trade. The many benefits of this globalization include greater and more efficient global agricultural production, reduced variability of regional and global food supplies, and savings in global water resources. However, a potential hidden cost is an increasingly fragile network that is more susceptible to shocks or disruptions. Recent studies suggest that complex systems, like the global food trade network, may have architectural features typically associated with the existence of tipping points and susceptibility to collapse. Here we present evidence that this global agricultural network is increasingly connected, homogeneous, and in a state where network nodes (here countries) can flip between alternate states. We use production and trade data from 1986 to 2009 to identify shifts in national self sufficiency and to quantify changes in connectivity and homogeneity of the wheat, maize and rice trade. We then simulate the possible impacts of climate and crop-disease disruptions, which could potentially trigger a global food crisis through an export-restriction-induced domino effect. Changes in self-sufficiency ratio (SSR) over time for various country groups. The SSR is computed based on production and trade of cereals and starchy roots. (Top row) Time series of SSR for the Group of Eight + Five (G8+5) countries. The '+ Five' refers to the five leading emerging economies in the world. (Bottom row) Boxplots of average SSR over two periods (1986-1990 and 2005-2009) for countries designated as 'Annex I' and 'Least Developed Countries' (LDC) by the United Nations.

  6. Global maize trade and food security: implications from a social network model.

    Science.gov (United States)

    Wu, Felicia; Guclu, Hasan

    2013-12-01

    In this study, we developed a social network model of the global trade of maize: one of the most important food, feed, and industrial crops worldwide, and critical to food security. We used this model to analyze patterns of maize trade among nations, and to determine where vulnerabilities in food security might arise if maize availability was decreased due to factors such as diversion to nonfood uses, climatic factors, or plant diseases. Using data on imports and exports from the U.N. Commodity Trade Statistics Database for each year from 2000 to 2009 inclusive, we summarized statistics on volumes of maize trade between pairs of nations for 217 nations. There is evidence of market segregation among clusters of nations; with three prominent clusters representing Europe, Brazil and Argentina, and the United States. The United States is by far the largest exporter of maize worldwide, whereas Japan and the Republic of Korea are the largest maize importers. In particular, the star-shaped cluster of the network that represents U.S. maize trade to other nations indicates the potential for food security risks because of the lack of trade these other nations conduct with other maize exporters. If a scenario arose in which U.S. maize could not be exported in as large quantities, maize supplies in many nations could be jeopardized. We discuss this in the context of recent maize ethanol production and its attendant impacts on food prices elsewhere worldwide. © 2013 Society for Risk Analysis.

  7. A microscopic study of the fitness-dependent topology of the world trade network

    Science.gov (United States)

    Hoppe, K.; Rodgers, G. J.

    2015-02-01

    Previous studies have suggested that the world-trade network belongs to the class of static hidden variable models. In this article we investigate the microscopic structure of the world trade network, that is the hidden variable correlation matrix of the network. The hidden variable is defined as a rank ordering of gross domestic products. This choice significantly reduces the noise in the statistical analysis found in previous studies. The hidden variable correlation matrix, that expresses the probability that a trade relationship between two countries of given fitness exists, suggests an attachment kernel that at least partially favours trading pairs or dissimilar fitness rather than the purely multiplicative one found previously. Additionally, we provide an in-depth look at the data source and reveal that first-order results, such as the degree distribution, exhibit significant qualitative differences depending on the data provider. Furthermore, we shed light on the intertemporal activity of international trade and point out that fluctuations occur mostly between countries with strong dissimilarities of fitness and connectivity.

  8. Analysis of México's Narco-War Network (2007-2011.

    Directory of Open Access Journals (Sweden)

    Jesús Espinal-Enríquez

    Full Text Available Since December 2006, more than a thousand cities in México have suffered the effects of the war between several drug cartels, amongst themselves, as well as with Mexican armed forces. Sources are not in agreement about the number of casualties of this war, with reports varying from 30 to 100 thousand dead; the economic and social ravages are impossible to quantify. In this work we analyze the official report of casualties in terms of the location and the date of occurrence of the homicides. We show how the violence, as reflected by the number of casualties, has increased over time and spread across the country. Next, based on the correlations between cities in the changes of the monthly number of casualties attributed to organized crime, we construct a narco-war network where nodes are the affected cities and links represent correlations between them. We find that close geographical distance between violent cities does not imply a strong correlation amongst them. We observe that the dynamics of the conflict has evolved in short-term periods where a small core of violent cities determines the main theatre of the war at each stage. This kind of analysis may also help to describe the emergence and propagation of gang-related violence waves.

  9. The use of nodes attributes in social network analysis with an application to an international trade network

    Science.gov (United States)

    de Andrade, Ricardo Lopes; Rêgo, Leandro Chaves

    2018-02-01

    The social network analysis (SNA) studies the interactions among actors in a network formed through some relationship (friendship, cooperation, trade, among others). The SNA is constantly approached from a binary point of view, i.e., it is only observed if a link between two actors is present or not regardless of the strength of this link. It is known that different information can be obtained in weighted and unweighted networks and that the information extracted from weighted networks is more accurate and detailed. Another rarely discussed approach in the SNA is related to the individual attributes of the actors (nodes), because such analysis is usually focused on the topological structure of networks. Features of the nodes are not incorporated in the SNA what implies that there is some loss or misperception of information in those analyze. This paper aims at exploring more precisely the complexities of a social network, initially developing a method that inserts the individual attributes in the topological structure of the network and then analyzing the network in four different ways: unweighted, edge-weighted and two methods for using both edge-weights and nodes' attributes. The international trade network was chosen in the application of this approach, where the nodes represent the countries, the links represent the cash flow in the trade transactions and countries' GDP were chosen as nodes' attributes. As a result, it is possible to observe which countries are most connected in the world economy and with higher cash flows, to point out the countries that are central to the intermediation of the wealth flow and those that are most benefited from being included in this network. We also made a principal component analysis to study which metrics are more influential in describing the data variability, which turn out to be mostly the weighted metrics which include the nodes' attributes.

  10. Complexity of the international agro-food trade network and its impact on food safety.

    Directory of Open Access Journals (Sweden)

    Mária Ercsey-Ravasz

    Full Text Available With the world's population now in excess of 7 billion, it is vital to ensure the chemical and microbiological safety of our food, while maintaining the sustainability of its production, distribution and trade. Using UN databases, here we show that the international agro-food trade network (IFTN, with nodes and edges representing countries and import-export fluxes, respectively, has evolved into a highly heterogeneous, complex supply-chain network. Seven countries form the core of the IFTN, with high values of betweenness centrality and each trading with over 77% of all the countries in the world. Graph theoretical analysis and a dynamic food flux model show that the IFTN provides a vehicle suitable for the fast distribution of potential contaminants but unsuitable for tracing their origin. In particular, we show that high values of node betweenness and vulnerability correlate well with recorded large food poisoning outbreaks.

  11. Complexity of the international agro-food trade network and its impact on food safety.

    Science.gov (United States)

    Ercsey-Ravasz, Mária; Toroczkai, Zoltán; Lakner, Zoltán; Baranyi, József

    2012-01-01

    With the world's population now in excess of 7 billion, it is vital to ensure the chemical and microbiological safety of our food, while maintaining the sustainability of its production, distribution and trade. Using UN databases, here we show that the international agro-food trade network (IFTN), with nodes and edges representing countries and import-export fluxes, respectively, has evolved into a highly heterogeneous, complex supply-chain network. Seven countries form the core of the IFTN, with high values of betweenness centrality and each trading with over 77% of all the countries in the world. Graph theoretical analysis and a dynamic food flux model show that the IFTN provides a vehicle suitable for the fast distribution of potential contaminants but unsuitable for tracing their origin. In particular, we show that high values of node betweenness and vulnerability correlate well with recorded large food poisoning outbreaks.

  12. Understanding the poultry trade network in Kenya: Implications for regional disease prevention and control.

    Science.gov (United States)

    McCarron, Margaret; Munyua, Peninah; Cheng, Po-Yung; Manga, Thomas; Wanjohi, Cathryn; Moen, Ann; Mounts, Anthony; Katz, Mark A

    2015-07-01

    Infectious diseases in poultry can spread quickly and lead to huge economic losses. In the past decade, on multiple continents, the accelerated spread of highly pathogenic avian Influenza A (H5N1) virus, often through informal trade networks, has led to the death and culling of hundreds of millions of poultry. Endemic poultry diseases like Newcastle disease and fowl typhoid can also be devastating in many parts of the world. Understanding trade networks in unregulated systems can inform policy decisions concerning disease prevention and containment. From June to December 2008 we conducted a cross-sectional survey of backyard farmers, market traders, and middlemen in 5/8 provinces in Kenya. We administered a standardized questionnaire to each type of actor using convenience, random, snowball, and systematic sampling. Questionnaires addressed frequency, volume, and geography of trade, as well as biosecurity practices. We created a network diagram identifying the most important locations for trade. Of 380 respondents, 51% were backyard farmers, 24% were middlemen and 25% were market traders. Half (50%) of backyard farmers said they raised poultry both for household consumption and for sale. Compared to market traders, middlemen bought their poultry from a greater number of villages (median 4.2 villages for middlemen vs. 1.9 for market traders). Traders were most likely to purchase poultry from backyard farmers. Of the backyard farmers who sold poultry, 51% [CI 40-63] reported selling poultry to market traders, and 54% [CI 44-63] sold to middlemen. Middlemen moved the largest volume of poultry on a weekly basis (median purchases: 187 birds/week [IQR 206]; median sales: 188 birds/week [IQR 412.5]). The highest numbers of birds were traded in Nairobi - Kenya's capital city. Nairobi was the most prominent trading node in the network (61 degrees of centrality). Many smaller sub-networks existed as a result of clustered local trade. Market traders were also integral to the

  13. Trends of the World Input and Output Network of Global Trade.

    Directory of Open Access Journals (Sweden)

    Rita María Del Río-Chanona

    Full Text Available The international trade naturally maps onto a complex networks. Theoretical analysis of this network gives valuable insights about the global economic system. Although different economic data sets have been investigated from the network perspective, little attention has been paid to its dynamical behaviour. Here we take the World Input Output Data set, which has values of the annual transactions between 40 different countries of 35 different sectors for the period of 15 years, and infer the time interdependence between countries and sectors. As a measure of interdependence we use correlations between various time series of the network characteristics. First we form 15 primary networks for each year of the data we have, where nodes are countries and links are annual exports from one country to the other. Then we calculate the strengths (weighted degree and PageRank of each country in each of the 15 networks for 15 different years. This leads to sets of time series and by calculating the correlations between these we form a secondary network where the links are the positive correlations between different countries or sectors. Furthermore, we also form a secondary network where the links are negative correlations in order to study the competition between countries and sectors. By analysing this secondary network we obtain a clearer picture of the mutual influences between countries. As one might expect, we find that political and geographical circumstances play an important role. However, the derived correlation network reveals surprising aspects which are hidden in the primary network. Sometimes countries which belong to the same community in the original network are found to be competitors in the secondary networks. E.g. Spain and Portugal are always in the same trade flow community, nevertheless secondary network analysis reveal that they exhibit contrary time evolution.

  14. Trends of the World Input and Output Network of Global Trade.

    Science.gov (United States)

    Del Río-Chanona, Rita María; Grujić, Jelena; Jeldtoft Jensen, Henrik

    2017-01-01

    The international trade naturally maps onto a complex networks. Theoretical analysis of this network gives valuable insights about the global economic system. Although different economic data sets have been investigated from the network perspective, little attention has been paid to its dynamical behaviour. Here we take the World Input Output Data set, which has values of the annual transactions between 40 different countries of 35 different sectors for the period of 15 years, and infer the time interdependence between countries and sectors. As a measure of interdependence we use correlations between various time series of the network characteristics. First we form 15 primary networks for each year of the data we have, where nodes are countries and links are annual exports from one country to the other. Then we calculate the strengths (weighted degree) and PageRank of each country in each of the 15 networks for 15 different years. This leads to sets of time series and by calculating the correlations between these we form a secondary network where the links are the positive correlations between different countries or sectors. Furthermore, we also form a secondary network where the links are negative correlations in order to study the competition between countries and sectors. By analysing this secondary network we obtain a clearer picture of the mutual influences between countries. As one might expect, we find that political and geographical circumstances play an important role. However, the derived correlation network reveals surprising aspects which are hidden in the primary network. Sometimes countries which belong to the same community in the original network are found to be competitors in the secondary networks. E.g. Spain and Portugal are always in the same trade flow community, nevertheless secondary network analysis reveal that they exhibit contrary time evolution.

  15. Cognitive small cell networks: energy efficiency and trade-offs

    NARCIS (Netherlands)

    Wildemeersch, M.; Wildemeersch, Matthias; Quek, T.Q.S.; Slump, Cornelis H.; Rabbachin, A.

    2013-01-01

    Heterogeneous networks using a mix of macrocells and small cells are foreseen as one of the solutions to meet the ever increasing mobile traffic demand. Nevertheless, a massive deployment of small cell access points (SAPs) leads also to a considerable increase in energy consumption. Spurred by

  16. Trade-off Analysis of Underwater Acoustic Sensor Networks

    Science.gov (United States)

    Tuna, G.; Das, R.

    2017-09-01

    In the last couple of decades, Underwater Acoustic Sensor Networks (UASNs) were started to be used for various commercial and non-commercial purposes. However, in underwater environments, there are some specific inherent constraints, such as high bit error rate, variable and large propagation delay, limited bandwidth capacity, and short-range communications, which severely degrade the performance of UASNs and limit the lifetime of underwater sensor nodes as well. Therefore, proving reliability of UASN applications poses a challenge. In this study, we try to balance energy consumption of underwater acoustic sensor networks and minimize end-to-end delay using an efficient node placement strategy. Our simulation results reveal that if the number of hops is reduced, energy consumption can be reduced. However, this increases end-to-end delay. Hence, application-specific requirements must be taken into consideration when determining a strategy for node deployment.

  17. Modeling the live-pig trade network in Georgia: Implications for disease prevention and control.

    Science.gov (United States)

    Kukielka, Esther Andrea; Martínez-López, Beatriz; Beltrán-Alcrudo, Daniel

    2017-01-01

    Live pig trade patterns, drivers and characteristics, particularly in backyard predominant systems, remain largely unexplored despite their important contribution to the spread of infectious diseases in the swine industry. A better understanding of the pig trade dynamics can inform the implementation of risk-based and more cost-effective prevention and control programs for swine diseases. In this study, a semi-structured questionnaire elaborated by FAO and implemented to 487 farmers was used to collect data regarding basic characteristics about pig demographics and live-pig trade among villages in the country of Georgia, where very scarce information is available. Social network analysis and exponential random graph models were used to better understand the structure, contact patterns and main drivers for pig trade in the country. Results indicate relatively infrequent (a total of 599 shipments in one year) and geographically localized (median Euclidean distance between shipments = 6.08 km; IQR = 0-13.88 km) pig movements in the studied regions. The main factors contributing to live-pig trade movements among villages were being from the same region (i.e., local trade), usage of a middleman or a live animal market to trade live pigs by at least one farmer in the village, and having a large number of pig farmers in the village. The identified villages' characteristics and structural network properties could be used to inform the design of more cost-effective surveillance systems in a country which pig industry was recently devastated by African swine fever epidemics and where backyard production systems are predominant.

  18. The rise of China in the International Trade Network: a community core detection approach.

    Science.gov (United States)

    Zhu, Zhen; Cerina, Federica; Chessa, Alessandro; Caldarelli, Guido; Riccaboni, Massimo

    2014-01-01

    Theory of complex networks proved successful in the description of a variety of complex systems ranging from biology to computer science and to economics and finance. Here we use network models to describe the evolution of a particular economic system, namely the International Trade Network (ITN). Previous studies often assume that globalization and regionalization in international trade are contradictory to each other. We re-examine the relationship between globalization and regionalization by viewing the international trade system as an interdependent complex network. We use the modularity optimization method to detect communities and community cores in the ITN during the years 1995-2011. We find rich dynamics over time both inter- and intra-communities. In particular, the Asia-Oceania community disappeared and reemerged over time along with a switch in leadership from Japan to China. We provide a multilevel description of the evolution of the network where the global dynamics (i.e., communities disappear or reemerge) and the regional dynamics (i.e., community core changes between community members) are related. Moreover, simulation results show that the global dynamics can be generated by a simple dynamic-edge-weight mechanism.

  19. Evolving dynamics of trading behavior based on coordination game in complex networks

    Science.gov (United States)

    Bian, Yue-tang; Xu, Lu; Li, Jin-sheng

    2016-05-01

    This work concerns the modeling of evolvement of trading behavior in stock markets. Based on the assumption of the investors' limited rationality, the evolution mechanism of trading behavior is modeled according to the investment strategy of coordination game in network, that investors are prone to imitate their neighbors' activity through comprehensive analysis on the risk dominance degree of certain investment behavior, the network topology of their relationship and its heterogeneity. We investigate by mean-field analysis and extensive simulations the evolution of investors' trading behavior in various typical networks under different risk dominance degree of investment behavior. Our results indicate that the evolution of investors' behavior is affected by the network structure of stock market and the effect of risk dominance degree of investment behavior; the stability of equilibrium states of investors' behavior dynamics is directly related with the risk dominance degree of some behavior; connectivity and heterogeneity of the network plays an important role in the evolution of the investment behavior in stock market.

  20. Task and Participant Scheduling of Trading Platforms in Vehicular Participatory Sensing Networks.

    Science.gov (United States)

    Shi, Heyuan; Song, Xiaoyu; Gu, Ming; Sun, Jiaguang

    2016-11-28

    The vehicular participatory sensing network (VPSN) is now becoming more and more prevalent, and additionally has shown its great potential in various applications. A general VPSN consists of many tasks from task, publishers, trading platforms and a crowd of participants. Some literature treats publishers and the trading platform as a whole, which is impractical since they are two independent economic entities with respective purposes. For a trading platform in markets, its purpose is to maximize the profit by selecting tasks and recruiting participants who satisfy the requirements of accepted tasks, rather than to improve the quality of each task. This scheduling problem for a trading platform consists of two parts: which tasks should be selected and which participants to be recruited? In this paper, we investigate the scheduling problem in vehicular participatory sensing with the predictable mobility of each vehicle. A genetic-based trading scheduling algorithm (GTSA) is proposed to solve the scheduling problem. Experiments with a realistic dataset of taxi trajectories demonstrate that GTSA algorithm is efficient for trading platforms to gain considerable profit in VPSN.

  1. “Crossing steels”. Sword trade networks between Spain and Italy in sixteenth and seventeenth centuries

    Directory of Open Access Journals (Sweden)

    Rafael M. Girón Pascual

    2016-11-01

    Full Text Available This paper analyses sword trade between Spain and Italy in sixteenth and seventeenth centuries through the study of two commercial routes used by European commercial networks from two unpublished sources: Archivio di Stato di Firenze and Archivo Historico de Protocolos de Granada. Firstly, we will examine sword importation through Leghorn, port of Florence and Tuscany, from the Spanish ports of Cadiz and Alicante, among others. Secondly, we will analyse Italian sword trade carried out by Genoese commercial companies placed in Granada. These merchants supplied swordsmiths from Granada —almost unknown by historiography— with Italian sword blades from Milan, Brescia, Serravalle and Genoa.

  2. On the Role of Hyper-arid Regions within the Virtual Water Trade Network

    Science.gov (United States)

    Aggrey, James; Alshamsi, Aamena; Molini, Annalisa

    2016-04-01

    Climate change, economic development, and population growth are bound to increasingly impact global water resources, posing a significant threat to the sustainable development of arid regions, where water consumption highly exceeds the natural carrying capacity, population growth rate is high, and climate variability is going to impact both water consumption and availability. Virtual Water Trade (VWT) - i.e. the international trade network of water-intensive products - has been proposed as a possible solution to optimize the allocation of water resources on the global scale. By increasing food availability and lowering food prices it may in fact help the rapid development of water-scarce regions. The structure of the VWT network has been analyzed by a number of authors both in connection with trade policies, socioeconomic constrains and agricultural efficiency. However a systematic analysis of the structure and the dynamics of the VWT network conditional to aridity, climatic forcing and energy availability, is still missing. Our goal is hence to analyze the role of arid and hyper-arid regions within the VWN under diverse climatic, demographic, and energy constraints with an aim to contribute to the ongoing Energy-Water-Food nexus discussion. In particular, we focus on the hyper-arid lands of the Arabian Peninsula, the role they play in the global network and the assessment of their specific criticalities, as reflected in the VWN resilience.

  3. Modeling the future evolution of the virtual water trade network: A combination of network and gravity models

    Science.gov (United States)

    Sartori, Martina; Schiavo, Stefano; Fracasso, Andrea; Riccaboni, Massimo

    2017-12-01

    The paper investigates how the topological features of the virtual water (VW) network and the size of the associated VW flows are likely to change over time, under different socio-economic and climate scenarios. We combine two alternative models of network formation -a stochastic and a fitness model, used to describe the structure of VW flows- with a gravity model of trade to predict the intensity of each bilateral flow. This combined approach is superior to existing methodologies in its ability to replicate the observed features of VW trade. The insights from the models are used to forecast future VW flows in 2020 and 2050, under different climatic scenarios, and compare them with future water availability. Results suggest that the current trend of VW exports is not sustainable for all countries. Moreover, our approach highlights that some VW importers might be exposed to "imported water stress" as they rely heavily on imports from countries whose water use is unsustainable.

  4. Mean field approximation for biased diffusion on Japanese inter-firm trading network.

    Directory of Open Access Journals (Sweden)

    Hayafumi Watanabe

    Full Text Available By analysing the financial data of firms across Japan, a nonlinear power law with an exponent of 1.3 was observed between the number of business partners (i.e. the degree of the inter-firm trading network and sales. In a previous study using numerical simulations, we found that this scaling can be explained by both the money-transport model, where a firm (i.e. customer distributes money to its out-edges (suppliers in proportion to the in-degree of destinations, and by the correlations among the Japanese inter-firm trading network. However, in this previous study, we could not specifically identify what types of structure properties (or correlations of the network determine the 1.3 exponent. In the present study, we more clearly elucidate the relationship between this nonlinear scaling and the network structure by applying mean-field approximation of the diffusion in a complex network to this money-transport model. Using theoretical analysis, we obtained the mean-field solution of the model and found that, in the case of the Japanese firms, the scaling exponent of 1.3 can be determined from the power law of the average degree of the nearest neighbours of the network with an exponent of -0.7.

  5. Market analyses of livestock trade networks to inform the prevention of joint economic and epidemiological risks

    Science.gov (United States)

    Gilligan, Christopher A.; Belloc, Catherine; Filipe, João A. N.; Vergu, Elisabeta

    2016-01-01

    Conventional epidemiological studies of infections spreading through trade networks, e.g. via livestock movements, generally show that central large-size holdings (hubs) should be preferentially surveyed and controlled in order to reduce epidemic spread. However, epidemiological strategies alone may not be economically optimal when costs of control are factored in together with risks of market disruption from targeting core holdings in a supply chain. Using extensive data on animal movements in supply chains for cattle and swine in France, we introduce a method to identify effective strategies for preventing outbreaks with limited budgets while minimizing the risk of market disruptions. Our method involves the categorization of holdings based on position along the supply chain and degree of market share. Our analyses suggest that trade has a higher risk of propagating epidemics through cattle networks, which are dominated by exchanges involving wholesalers, than for swine. We assess the effectiveness of contrasting interventions from the perspectives of regulators and the market, using percolation analysis. We show that preferentially targeting minor, non-central agents can outperform targeting of hubs when the costs to stakeholders and the risks of market disturbance are considered. Our study highlights the importance of assessing joint economic–epidemiological risks in networks underlying pathogen propagation and trade. PMID:26984191

  6. Network interdependency between social media and stock trading activities: Evidence from China

    Science.gov (United States)

    Lin, Shen; Ren, Da; Zhang, Wei; Zhang, Yongjie; Shen, Dehua

    2016-06-01

    The emergence of social media accelerates the research on information dissemination and its corresponding influence on trading tendency. Based on empirical study of the dynamic relationship between the ratio of re-post microblog and original microblog (RRO) and average volume per transaction (VPT), we find the following results: (1) In microblog network, stocks with high RRO are often accompanied with low statistical VPT; (2) When the discussion about one stock is quite lively in microblog network (such as the blog postings reach a summit), it does not statistically cause the fluctuations of VPT of the stock; (3) Overall speaking, RRO plays a significant role in inverting u-shaped relationship with VPT.

  7. On the Network Convergence Process in RPL over IEEE 802.15.4 Multihop Networks: Improvement and Trade-Offs

    Directory of Open Access Journals (Sweden)

    Hamidreza Kermajani

    2014-07-01

    Full Text Available The IPv6 Routing Protocol for Low-power and Lossy Networks (RPL has been recently developed by the Internet Engineering Task Force (IETF. Given its crucial role in enabling the Internet of Things, a significant amount of research effort has already been devoted to RPL. However, the RPL network convergence process has not yet been investigated in detail. In this paper we study the influence of the main RPL parameters and mechanisms on the network convergence process of this protocol in IEEE 802.15.4 multihop networks. We also propose and evaluate a mechanism that leverages an option available in RPL for accelerating the network convergence process. We carry out extensive simulations for a wide range of conditions, considering different network scenarios in terms of size and density. Results show that network convergence performance depends dramatically on the use and adequate configuration of key RPL parameters and mechanisms. The findings and contributions of this work provide a RPL configuration guideline for network convergence performance tuning, as well as a characterization of the related performance trade-offs.

  8. On the network convergence process in RPL over IEEE 802.15.4 multihop networks: improvement and trade-offs.

    Science.gov (United States)

    Kermajani, Hamidreza; Gomez, Carles

    2014-07-07

    The IPv6 Routing Protocol for Low-power and Lossy Networks (RPL) has been recently developed by the Internet Engineering Task Force (IETF). Given its crucial role in enabling the Internet of Things, a significant amount of research effort has already been devoted to RPL. However, the RPL network convergence process has not yet been investigated in detail. In this paper we study the influence of the main RPL parameters and mechanisms on the network convergence process of this protocol in IEEE 802.15.4 multihop networks. We also propose and evaluate a mechanism that leverages an option available in RPL for accelerating the network convergence process. We carry out extensive simulations for a wide range of conditions, considering different network scenarios in terms of size and density. Results show that network convergence performance depends dramatically on the use and adequate configuration of key RPL parameters and mechanisms. The findings and contributions of this work provide a RPL configuration guideline for network convergence performance tuning, as well as a characterization of the related performance trade-offs.

  9. 77 FR 27108 - Order of Suspension of Trading; In the Matter of Anthracite Capital, Inc., Auto Data Network Inc...

    Science.gov (United States)

    2012-05-08

    ... investors require a suspension of trading in the securities of the above-listed companies. Therefore, it is... COMMISSION Order of Suspension of Trading; In the Matter of Anthracite Capital, Inc., Auto Data Network Inc., Avenue Group, Inc., Ckrush, Inc., Clickable Enterprises, Inc., and DCI USA, Inc. May 4, 2012 It appears...

  10. Closed-Loop Control of Complex Networks: A Trade-Off between Time and Energy

    Science.gov (United States)

    Sun, Yong-Zheng; Leng, Si-Yang; Lai, Ying-Cheng; Grebogi, Celso; Lin, Wei

    2017-11-01

    Controlling complex nonlinear networks is largely an unsolved problem at the present. Existing works focus either on open-loop control strategies and their energy consumptions or on closed-loop control schemes with an infinite-time duration. We articulate a finite-time, closed-loop controller with an eye toward the physical and mathematical underpinnings of the trade-off between the control time and energy as well as their dependence on the network parameters and structure. The closed-loop controller is tested on a large number of real systems including stem cell differentiation, food webs, random ecosystems, and spiking neuronal networks. Our results represent a step forward in developing a rigorous and general framework to control nonlinear dynamical networks with a complex topology.

  11. The hidden hyperbolic geometry of international trade: World Trade Atlas 1870–2013

    Science.gov (United States)

    García-Pérez, Guillermo; Boguñá, Marián; Allard, Antoine; Serrano, M. Ángeles

    2016-01-01

    Here, we present the World Trade Atlas 1870–2013, a collection of annual world trade maps in which distance combines economic size and the different dimensions that affect international trade beyond mere geography. Trade distances, based on a gravity model predicting the existence of significant trade channels, are such that the closer countries are in trade space, the greater their chance of becoming connected. The atlas provides us with information regarding the long-term evolution of the international trade system and demonstrates that, in terms of trade, the world is not flat but hyperbolic, as a reflection of its complex architecture. The departure from flatness has been increasing since World War I, meaning that differences in trade distances are growing and trade networks are becoming more hierarchical. Smaller-scale economies are moving away from other countries except for the largest economies; meanwhile those large economies are increasing their chances of becoming connected worldwide. At the same time, Preferential Trade Agreements do not fit in perfectly with natural communities within the trade space and have not necessarily reduced internal trade barriers. We discuss an interpretation in terms of globalization, hierarchization, and localization; three simultaneous forces that shape the international trade system. PMID:27633649

  12. The role of global trade and transport network topology in the human-mediated dispersal of alien species.

    Science.gov (United States)

    Banks, Natalie Clare; Paini, Dean Ronald; Bayliss, Kirsty Louise; Hodda, Michael

    2015-02-01

    More people and goods are moving further and more frequently via many different trade and transport networks under current trends of globalisation. These networks can play a major role in the unintended introduction of exotic species to new locations. With the continuing rise in global trade, more research attention is being focused on the role of networks in the spread of invasive species. This represents an emerging field of research in invasion science and the substantial knowledge being generated within other disciplines can provide ecologists with new tools with which to study invasions. For the first time, we synthesise studies from several perspectives, approaches and disciplines to derive the fundamental characteristics of network topology determining the likelihood of spread of organisms via trade and transport networks. These characteristics can be used to identify critical points of vulnerability within these networks and enable the development of more effective strategies to prevent invasions. © 2014 John Wiley & Sons Ltd/CNRS.

  13. Implications of the cattle trade network in Cameroon for regional disease prevention and control

    Science.gov (United States)

    Motta, Paolo; Porphyre, Thibaud; Handel, Ian; Hamman, Saidou M.; Ngu Ngwa, Victor; Tanya, Vincent; Morgan, Kenton; Christley, Rob; Bronsvoort, Barend M. Dec.

    2017-03-01

    Movement of live animals is a major risk factor for the spread of livestock diseases and zoonotic infections. Understanding contact patterns is key to informing cost-effective surveillance and control strategies. In West and Central Africa some of the most rapid urbanization globally is expected to increase the demand for animal-source foods and the need for safer and more efficient animal production. Livestock trading points represent a strategic contact node in the dissemination of multiple pathogens. From October 2014 to May 2015 official transaction records were collected and a questionnaire-based survey was carried out in cattle markets throughout Western and Central-Northern Cameroon. The data were used to analyse the cattle trade network including a total of 127 livestock markets within Cameroon and five neighboring countries. This study explores for the first time the influence of animal trade on infectious disease spread in the region. The investigations showed that national borders do not present a barrier against pathogen dissemination and that non-neighbouring countries are epidemiologically connected, highlighting the importance of a regional approach to disease surveillance, prevention and control. Furthermore, these findings provide evidence for the benefit of strategic risk-based approaches for disease monitoring, surveillance and control, as well as for communication and training purposes through targeting key regions, highly connected livestock markets and central trading links.

  14. Network analysis of returns and volume trading in stock markets: The Euro Stoxx case

    Science.gov (United States)

    Brida, Juan Gabriel; Matesanz, David; Seijas, Maria Nela

    2016-02-01

    This study applies network analysis to analyze the structure of the Euro Stoxx market during the long period from 2002 up to 2014. The paper generalizes previous research on stock market networks by including asset returns and volume trading as the main variables to study the financial market. A multidimensional generalization of the minimal spanning tree (MST) concept is introduced, by adding the role of trading volume to the traditional approach which only includes price returns. Additionally, we use symbolization methods to the raw data to study the behavior of the market structure in different, normal and critical, situations. The hierarchical organization of the network is derived, and the MST for different sub-periods of 2002-2014 is created to illustrate how the structure of the market evolves over time. From the structural topologies of these trees, different clusters of companies are identified and analyzed according to their geographical and economic links. Two important results are achieved. Firstly, as other studies have highlighted, at the time of the financial crisis after 2008 the network becomes a more centralized one. Secondly and most important, during our second period of analysis, 2008-2014, we observe that hierarchy becomes more country-specific where different sub-clusters of stocks belonging to France, Germany, Spain or Italy are found apart from their business sector group. This result may suggest that during this period of time financial investors seem to be worried most about country specific economic circumstances.

  15. Trade and Technology: Maintaining the U.S.-Japan Security Relationship in the Post-Cold War Era

    Science.gov (United States)

    1992-12-01

    Minister, Lee Kuan Yew , to express his displeasure that Japan has not been "open and frank about the atrocities and horrors committed", adding that...Journal 8, no. 4 (Fall 1991): 581. 33 apprehensive. Singapore’s Prime Minister Lee Kuan Yew summed up Japan’s involvement in the Gulf War by stating

  16. [Trade, wars and the venereal disease: VD epidemic and control of Korea in the late nineteenth and early twentieth century].

    Science.gov (United States)

    Sihn, Kyu-hwan

    2008-12-01

    This paper examines the spread of venereal disease from the Opening of Korea to the early Japanese colonial period. It focuses on the formation and expansion of Japanese settlement in Korea, the influence of wars, and the state control of VD. The Opening of Korea made the foreign settlement, and Japanese licensed prostitution flourished in Japanese settlement. According to the First Annual Report of the Korean Government Hospital (1886) and Gyelimuisa (1887), VD patients occupied 18.3% of outpatients in Jejungwon hospital of Seoul and 8.9% of outpatients in Busan hospital. Directly after the Opening of Korea, Korean people's VD became lesser critical than Japanese people's VD. But the expansion of Japanese settlement and outbreak of two wars such as Sino-Japanese War and Russo-Japanese War made worse Korean people's VD. According to the Residency-General resources (1904-1909), syphilis patients was registered in 0.8-6.6% (average 3.6%). If it add to gonorrhea and chancroid patients which often could not be found out by the naked eyes, the number of VD patients will be increase. Ji Seok-yeong (1855-1935), the earliest smallpox vaccinarian in Korea, asserted the need of VD control. Though he warned men bought sex as well as prostitutes became the main culprit of VD diffusion, he supported licensed prostitution because of realistic possibility. The Great Han Empire (1897-1910) tried to control the lower grade whore, and gathered prostitutes in some area by police power. After Japanese annexation of Korea, while Japanese has gradually decreased in VD patients, Korean has gradually increased in VD patients.

  17. Illegal Trade of Tortoises (Testudinata in Colombia: A Network Analysis Approach

    Directory of Open Access Journals (Sweden)

    Felber Jair Arroyave

    2014-03-01

    Full Text Available The use of wildlife is important for supporting the economic and demographic growth in emerging countries. Nevertheless, the products of wildlife usually come from illegal trade to supply fur, wild meat and pet markets. Illegal trade puts great pressure over wild populations and threats some endangered species. In Colombia, the trade of wildlife is important because of thevolumes traded and the cultural and economic connotation of some products. We describe the spatial structure of illegal trade of wildlife at departmental level for the five most traded genera of Colombian tortoises (Trachemys, Chelonoidis, Kinosternon, Podocnemis and Rhinoclemmys. This study is based on thereports of seizures between 2005 and 2009 compiled by the Ministerio de Medio Ambiente y Desarrollo of Colombia. Weapply Network Analysis to study and evidence that the illegal trade network of tortoises includes international markets and supplies the Andean region. The Caribbean, Pacific and Orinoquia regions are the principal suppliers. Quindio, Santander, Antioquia and Putumayo are the biggest jobbers and consumers of wild tortoises. We propose sociocultural and cohercitive actions to fragment the trade network andtheir illegal market as well as promoting the conservation and sustainable use of tortoises.TRÁFICO ILEGAL DE TORTUGAS CONTINENTALES (TESTUDINATA EN COLOMBIA: UNA APROXIMACIÓN DESDEEL ANÁLISIS DE REDESEl uso de productos extraídos o provenientes de la fauna silvestre es relevante para el desarrollo económico y el bienestar social en muchos lugares del mundo. Sin embargo, frecuentemente la fauna silvestre entra en los circuitos de tráfico ilegal para abastecer los mercados de mascotas y productos como pieles, plumas, “carne de monte”, entre otros. El tráfico ilegal genera enormes presiones sobre las especies sujetas a extracción y es una de las principales amenazas para estas. En Colombia, el tráfico de tortugas es de importancia debido a los vol

  18. Hybrid Accuracy-Time Trade-off Solution for Spectrum Sensing in Cognitive Radio Networks

    DEFF Research Database (Denmark)

    Ivanov, Antoni Stefkov; Mihovska, Albena Dimitrova; Poulkov, Vladimir

    2018-01-01

    The rise of the cognitive radio systems as a concept for future networks has seen a great amount of scientific effort in the recent years. Appropriately, much attention is given to how the vital function of spectrum sensing should be executed. The cognitive radio device is required to be able...... parameters, therefore, a suitable trade-off is necessary for an optimal efficiency. We propose a dual-approach solution. The decision about the spectrum occupancy is made using the measured signal-to-noise ratio (SNR) and the received signal levels as inputs in a fuzzy logic algorithm. The result...

  19. Genomic admixture tracks pulses of economic activity over 2,000 years in the Indian Ocean trading network.

    Science.gov (United States)

    Brucato, Nicolas; Kusuma, Pradiptajati; Beaujard, Philippe; Sudoyo, Herawati; Cox, Murray P; Ricaut, François-Xavier

    2017-06-07

    The Indian Ocean has long been a hub of interacting human populations. Following land- and sea-based routes, trade drove cultural contacts between far-distant ethnic groups in Asia, India, the Middle East and Africa, creating one of the world's first proto-globalized environments. However, the extent to which population mixing was mediated by trade is poorly understood. Reconstructing admixture times from genomic data in 3,006 individuals from 187 regional populations reveals a close association between bouts of human migration and trade volumes during the last 2,000 years across the Indian Ocean trading system. Temporal oscillations in trading activity match phases of contraction and expansion in migration, with high water marks following the expansion of the Silk Roads in the 5(th) century AD, the rise of maritime routes in the 11(th) century and a drastic restructuring of the trade network following the arrival of Europeans in the 16(th) century. The economic fluxes of the Indian Ocean trade network therefore directly shaped exchanges of genes, in addition to goods and concepts.

  20. Revolutionary Networks. Women's Political and Social Activism in Cold War Italy and Yugoslavia (1945-1957)

    OpenAIRE

    Bonfiglioli, Chiara

    2012-01-01

    The Cold War era has generally been represented as a moment of conservatism when it comes to women’s activism. While women’s political participation in the Second World War had been studied in detail, women’s political and social activism in Cold War Europe has remained under-researched. In my dissertation, I show the liveliness of women’s political and social activism in Italy and Yugoslavia in the early Cold War period (1945-1957), demonstrating that women’s antifascist organizations played...

  1. Fighting the fan sub war: Conflicts between media rights holders and unauthorized creator/distributor networks

    Directory of Open Access Journals (Sweden)

    Mikhail Koulikov

    2010-09-01

    Full Text Available The way Japanese animation has been spread outside Japan not only by entertainment companies but also by fan groups that have worked to produce fan subs—that is, subtitled translations of films and television shows produced without authorization and shared outside established commercial channels—has been one of the most powerful examples of transformative culture to take place in the last three decades or so. Much has already been written about anime and its global impact, but the process of fan sub creation and distribution, and in particular how these groups have been structured, has not yet been examined in depth. A question that is becoming prominent concerns what happens when the fan subbing culture finally clashes with authorized commercial content distributors. This essay explores the way fan sub distribution has changed over the years and draws on the concept of Net war to illustrate the conflict and the potential tools and methods animation distribution companies have used to engage, subvert, and interdict these groups. This has broad implications for understanding and predicting the flow of other emerging conflicts between networked actors, such as hackers, anarchists, and activists, and hierarchically organized traditional corporate entities.

  2. TRADING-OFF CONSTRAINTS IN THE PUMP SCHEDULING OPTIMIZATION OF WATER DISTRIBUTION NETWORKS

    Directory of Open Access Journals (Sweden)

    Gencer Genço\\u011Flu

    2016-01-01

    Full Text Available Pumps are one of the essential components of water supply systems. Depending of the topography, a water supply system may completely rely on pumping. They may consume non-negligible amount of water authorities' budgets during operation. Besides their energy costs, maintaining the healthiness of pumping systems is another concern for authorities. This study represents a multi-objective optimization method for pump scheduling problem. The optimization objective contains hydraulic and operational constraints. Switching of pumps and usage of electricity tariff are assumed to be key factors for operational reliability and energy consumption and costs of pumping systems. The local optimals for systems operational reliability, energy consumptions and energy costs are investigated resulting from trading-off pump switch and electricity tariff constraints within given set of boundary conditions. In the study, a custom made program is employed that combines genetic algorithm based optimization module with hydraulic network simulation software -EPANET. Developed method is applied on the case study network; N8-3 pressure zone of the Northern Supply of Ankara (Turkey Water Distribution Network. This work offers an efficient method for water authorities aiming to optimize pumping schedules considering expenditures and operational reliability mutually.

  3. Hubs and Authorities in the World Trade Network Using a Weighted HITS Algorithm

    Science.gov (United States)

    Deguchi, Tsuyoshi; Takahashi, Katsuhide; Takayasu, Hideki; Takayasu, Misako

    2014-01-01

    We investigate the economic hubs and authorities of the world trade network (WTN) from to , an era of rapid economic globalization. Using a well-defined weighted hyperlink-induced topic search (HITS) algorithm, we can calculate the values of the weighted HITS hub and authority for each country in a conjugate way. In the context of the WTN, authority values are large for countries with significant imports from large hub countries, and hub values are large for countries with significant exports to high-authority countries. The United States was the largest economic authority in the WTN from to . The authority value of the United States has declined since , and China has now become the largest hub in the WTN. At the same time, China's authority value has grown as China is transforming itself from the “factory of the world” to the “market of the world.” European countries show a tendency to trade mostly within the European Union, which has decreased Europe's hub and authority values. Japan's authority value has increased slowly, while its hub value has declined. These changes are consistent with Japan's transition from being an export-driven economy in its high economic growth era in the latter half of the twentieth century to being a more mature, economically balanced nation. PMID:25050940

  4. Exploring trade-offs between VMAT dose quality and delivery efficiency using a network optimization approach

    Science.gov (United States)

    Salari, Ehsan; Wala, Jeremiah; Craft, David

    2012-09-01

    To formulate and solve the fluence-map merging procedure of the recently-published VMAT treatment-plan optimization method, called vmerge, as a bi-criteria optimization problem. Using an exact merging method rather than the previously-used heuristic, we are able to better characterize the trade-off between the delivery efficiency and dose quality. vmerge begins with a solution of the fluence-map optimization problem with 180 equi-spaced beams that yields the ‘ideal’ dose distribution. Neighboring fluence maps are then successively merged, meaning that they are added together and delivered as a single map. The merging process improves the delivery efficiency at the expense of deviating from the initial high-quality dose distribution. We replace the original merging heuristic by considering the merging problem as a discrete bi-criteria optimization problem with the objectives of maximizing the treatment efficiency and minimizing the deviation from the ideal dose. We formulate this using a network-flow model that represents the merging problem. Since the problem is discrete and thus non-convex, we employ a customized box algorithm to characterize the Pareto frontier. The Pareto frontier is then used as a benchmark to evaluate the performance of the standard vmerge algorithm as well as two other similar heuristics. We test the exact and heuristic merging approaches on a pancreas and a prostate cancer case. For both cases, the shape of the Pareto frontier suggests that starting from a high-quality plan, we can obtain efficient VMAT plans through merging neighboring fluence maps without substantially deviating from the initial dose distribution. The trade-off curves obtained by the various heuristics are contrasted and shown to all be equally capable of initial plan simplifications, but to deviate in quality for more drastic efficiency improvements. This work presents a network optimization approach to the merging problem. Contrasting the trade-off curves of the

  5. Spatial Dynamics of the Communities and the Role of Major Countries in the International Rare Earths Trade: A Complex Network Analysis

    Science.gov (United States)

    Wang, Xibo; Ge, Jianping; Wei, Wendong; Li, Hanshi; Wu, Chen; Zhu, Ge

    2016-01-01

    Rare earths (RE) are critical materials in many high-technology products. Due to the uneven distribution and important functions for industrial development, most countries import RE from a handful of suppliers that are rich in RE, such as China. However, because of the rapid growth of RE exploitation and pollution of the mining and production process, some of the main suppliers have gradually tended to reduce the RE production and exports. Especially in the last decade, international RE trade has been changing in the trade community and trade volume. Based on complex network theory, we built an unweighted and weighted network to explore the evolution of the communities and identify the role of the major countries in the RE trade. The results show that an international RE trade network was dispersed and unstable because of the existence of five to nine trade communities in the unweighted network and four to eight trade communities in the weighted network in the past 13 years. Moreover, trade groups formed due to the great influence of geopolitical relations. China was often associated with the South America and African countries in the same trade group. In addition, Japan, China, the United States, and Germany had the largest impacts on international RE trade from 2002 to 2014. Last, some policy suggestions were highlighted according to the results. PMID:27137779

  6. The Dynamics of Avian Influenza: Individual-Based Model with Intervention Strategies in Traditional Trade Networks in Phitsanulok Province, Thailand

    Directory of Open Access Journals (Sweden)

    Chaiwat Wilasang

    2016-01-01

    Full Text Available Avian influenza virus subtype H5N1 is endemic to Southeast Asia. In Thailand, avian influenza viruses continue to cause large poultry stock losses. The spread of the disease has a serious impact on poultry production especially among rural households with backyard chickens. The movements and activities of chicken traders result in the spread of the disease through traditional trade networks. In this study, we investigate the dynamics of avian influenza in the traditional trade network in Phitsanulok Province, Thailand. We also propose an individual-based model with intervention strategies to control the spread of the disease. We found that the dynamics of the disease mainly depend on the transmission probability and the virus inactivation period. This study also illustrates the appropriate virus disinfection period and the target for intervention strategies on traditional trade network. The results suggest that good hygiene and cleanliness among household traders and trader of trader areas and ensuring that any equipment used is clean can lead to a decrease in transmission and final epidemic size. These results may be useful to epidemiologists, researchers, and relevant authorities in understanding the spread of avian influenza through traditional trade networks.

  7. The health impact of trade and investment agreements: a quantitative systematic review and network co-citation analysis.

    Science.gov (United States)

    Barlow, Pepita; McKee, Martin; Basu, Sanjay; Stuckler, David

    2017-03-08

    Regional trade agreements are major international policy instruments that shape macro-economic and political systems. There is widespread debate as to whether and how these agreements pose risks to public health. Here we perform a comprehensive systematic review of quantitative studies of the health impact of trade and investment agreements. We identified studies from searches in PubMed, Web of Science, EMBASE, and Global Health Online. Research articles were eligible for inclusion if they were quantitative studies of the health impacts of trade and investment agreements or policy. We systematically reviewed study findings, evaluated quality using the Quality Assessment Tool from the Effective Public Health Practice Project, and performed network citation analysis to study disciplinary siloes. Seventeen quantitative studies met our inclusion criteria. There was consistent evidence that implementing trade agreements was associated with increased consumption of processed foods and sugar-sweetened beverages. Granting import licenses for patented drugs was associated with increased access to pharmaceuticals. Implementing trade agreements and associated policies was also correlated with higher cardiovascular disease incidence and higher Body Mass Index (BMI), whilst correlations with tobacco consumption, under-five mortality, maternal mortality, and life expectancy were inconclusive. Overall, the quality of studies is weak or moderately weak, and co-citation analysis revealed a relative isolation of public health from economics. We identified limitations in existing studies which preclude definitive conclusions of the health impacts of regional trade and investment agreements. Few address unobserved confounding, and many possible consequences and mechanisms linking trade and investment agreements to health remain poorly understood. Results from our co-citation analysis suggest scope for greater interdisciplinary collaboration. Notwithstanding these limitations, our

  8. Network analysis of Danish cattle industry trade patterns as an evaluation of risk potential for disease spread

    DEFF Research Database (Denmark)

    Bigras-Poulin, M.; Thompson, R.A.; Chriél, Mariann

    2006-01-01

    Trade patterns of animal movements in a specific industry are complex and difficult to study because there are many stakeholders, premises that are heterogeneously spread over the country, and a highly dynamic flow of animals exists among them. The Danish cattle industry was defined as a network...... premises, (3) the specific premise network, and (4) the overall industry network. When contagious animals are moved from one premise to another, then to a third and so forth, these movements create a path for potential transfer of pathogens. The paths within which pathogens are present identify...... the transmission risks. A network of animal movements should provide information about pathogen transmission and disease spread. The network of the Danish cattle industry network was a directed scale-free graph (the direction of a movement was known), with an in-degree power of 2 an out-degree power of 1...

  9. Post-conflict struggles as networks of problems: A network analysis of trauma, daily stressors and psychological distress among Sri Lankan war survivors.

    Science.gov (United States)

    Jayawickreme, Nuwan; Mootoo, Candace; Fountain, Christine; Rasmussen, Andrew; Jayawickreme, Eranda; Bertuccio, Rebecca F

    2017-10-01

    A growing body of literature indicates that the mental distress experienced by survivors of war is a function of both experienced trauma and stressful life events. However, the majority of these studies are limited in that they 1) employ models of psychological distress that emphasize underlying latent constructs and do not allow researchers to examine the unique associations between particular symptoms and various stressors; and 2) use one or more measures that were not developed for that particular context and thus may exclude key traumas, stressful life events and symptoms of psychopathology. The current study addresses both these limitations by 1) using a novel conceptual model, network analysis, which assumes that symptoms covary with each other not because they stem from a latent construct, but rather because they represent meaningful relationships between the symptoms; and 2) employing a locally developed measure of experienced trauma, stressful life problems and symptoms of psychopathology. Over the course of 2009-2011, 337 survivors of the Sri Lankan civil war were administered the Penn-RESIST-Peradeniya War Problems Questionnaire (PRPWPQ). Network analysis revealed that symptoms of psychopathology, problems pertaining to lack of basic needs, and social problems were central to the network relative to experienced trauma and other types of problems. After controlling for shared associations, social problems in particular were the most central, significantly more so than traumatic events and family problems. Several particular traumatic events, stressful life events and symptoms of psychopathology that were central to the network were also identified. Discussion emphasizes the utility of such network models to researchers and practitioners determining how to spend limited resources in the most impactful way possible. Copyright © 2017 Elsevier Ltd. All rights reserved.

  10. Network-Centric Warfare and the Operational Concepts of War: A Synergistic Effect

    National Research Council Canada - National Science Library

    Sickert, Mark

    2000-01-01

    ...), promises to increase freedom of action at the strategic, operational, and tactical levels of war by allowing greater control of the operational factors of space, time, and force than has been previously possible...

  11. Quality assessment of static aggregation compared to the temporal approach based on a pig trade network in Northern Germany.

    Science.gov (United States)

    Büttner, Kathrin; Salau, Jennifer; Krieter, Joachim

    2016-07-01

    Recent analyses of animal movement networks focused on the static aggregation of trade contacts over different time windows, which neglects the system's temporal variation. In terms of disease spread, ignoring the temporal dynamics can lead to an over- or underestimation of an outbreak's speed and extent. This becomes particularly evident, if the static aggregation allows for the existence of more paths compared to the number of time-respecting paths (i.e. paths in the right chronological order). Therefore, the aim of this study was to reveal differences between static and temporal representations of an animal trade network and to assess the quality of the static aggregation in comparison to the temporal counterpart. Contact data from a pig trade network (2006-2009) of a producer community in Northern Germany were analysed. The results show that a median value of 8.7 % (4.6-14.1%) of the nodes and 3.1% (1.6-5.5%) of the edges were active on a weekly resolution. No fluctuations in the activity patterns were obvious. Furthermore, 50% of the nodes already had one trade contact after approximately six months. For an accumulation window with increasing size (one day each), the accumulation rate, i.e. the relative increase in the number of nodes or edges, stayed relatively constant below 0.07% for the nodes and 0.12 % for the edges. The temporal distances had a much wider distribution than the topological distances. 84% of the temporal distances were smaller than 90 days. The maximum temporal distance was 1000 days, which corresponds to the temporal diameter of the present network. The median temporal correlation coefficient, which measures the probability for an edge to persist across two consecutive time steps, was 0.47, with a maximum value of 0.63 at the accumulation window of 88 days. The causal fidelity measures the fraction of the number of static paths which can also be taken in the temporal network. For the whole observation period relatively high values

  12. In times of war, adolescents do not fall silent: Teacher-student social network communication in wartime.

    Science.gov (United States)

    Ophir, Yaakov; Rosenberg, Hananel; Asterhan, Christa S C; Schwarz, Baruch B

    2016-01-01

    Exposure to war is associated with psychological disturbances, but ongoing communication between adolescents and teachers may contribute to adolescents' resilience. This study examined the extent and nature of teacher-student communication on Social Network Sites (SNS) during the 2014 Israel-Gaza war. Israeli adolescents (N = 208, 13-18 yrs) completed information about SNS communication. A subset of these (N = 145) completed questionnaires on social rejection and distress sharing on SNS. More than a half (56%) of the respondents communicated with teachers via SNS. The main content category was 'emotional support'. Adolescents' perceived benefits from SNS communication with teachers were associated with distress sharing. Social rejection was negatively associated with emotional support and perceived benefits from SNS communication. We conclude that SNS communication between teachers and students may provide students with easy access to human connections and emotional support, which is likely to contribute to adolescents' resilience in times of war. Copyright © 2015 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

  13. Dissortative From the Outside, Assortative From the Inside: Social Structure and Behavior in the Industrial Trade Network

    CERN Document Server

    Kelman, Guy; Manes, Eran; Lamieri, Marco; Golo, Natasa; Solomon, Sorin

    2014-01-01

    It is generally accepted that neighboring nodes in financial networks are negatively assorted with respect to the correlation between their degrees. This feature would play an important 'damping' role in the market during downturns (periods of distress) since this connectivity pattern between firms lowers the chances of auto-amplifying (the propagation of) distress. In this paper we explore a trade-network of industrial firms where the nodes are suppliers or buyers, and the links are those invoices that the suppliers send out to their buyers and then go on to present to their bank for discounting. The network was collected by a large Italian bank in 2007, from their intermediation of the sales on credit made by their clients. The network also shows dissortative behavior as seen in other studies on financial networks. However, when looking at the credit rating of the firms, an important attribute internal to each node, we find that firms that trade with one another share overwhelming similarity. We know that m...

  14. Trade-offs and efficiencies in optimal budget-constrained multispecies corridor networks

    Science.gov (United States)

    Dilkina, Bistra; Houtman, Rachel; Gomes, Carla P.; Montgomery, Claire A.; McKelvey, Kevin; Kendall, Katherine; Graves, Tabitha A.; Bernstein, Richard; Schwartz, Michael K.

    2017-01-01

    Conservation biologists recognize that a system of isolated protected areas will be necessary but insufficient to meet biodiversity objectives. Current approaches to connecting core conservation areas through corridors consider optimal corridor placement based on a single optimization goal: commonly, maximizing the movement for a target species across a network of protected areas. We show that designing corridors for single species based on purely ecological criteria leads to extremely expensive linkages that are suboptimal for multispecies connectivity objectives. Similarly, acquiring the least-expensive linkages leads to ecologically poor solutions. We developed algorithms for optimizing corridors for multispecies use given a specific budget. We applied our approach in western Montana to demonstrate how the solutions may be used to evaluate trade-offs in connectivity for 2 species with different habitat requirements, different core areas, and different conservation values under different budgets. We evaluated corridors that were optimal for each species individually and for both species jointly. Incorporating a budget constraint and jointly optimizing for both species resulted in corridors that were close to the individual species movement-potential optima but with substantial cost savings. Our approach produced corridors that were within 14% and 11% of the best possible corridor connectivity for grizzly bears (Ursus arctos) and wolverines (Gulo gulo), respectively, and saved 75% of the cost. Similarly, joint optimization under a combined budget resulted in improved connectivity for both species relative to splitting the budget in 2 to optimize for each species individually. Our results demonstrate economies of scale and complementarities conservation planners can achieve by optimizing corridor designs for financial costs and for multiple species connectivity jointly. We believe that our approach will facilitate corridor conservation by reducing acquisition costs

  15. The Network Data Handling War: MySQL vs. NfDump

    NARCIS (Netherlands)

    Hofstede, Rick; Hofstede, R.J.; Sperotto, Anna; Fioreze, Tiago; Pras, Aiko

    Network monitoring plays a crucial role in any network management environment. Especially nowadays, with network speed and load constantly increasing, more and more data needs to be collected and efficiently processed. In highly interactive network monitoring systems, a quick response time from

  16. Jemen - the Proxy War

    OpenAIRE

    Magdalena El Ghamari

    2015-01-01

    The military operation in Yemen is significant departure from Saudi Arabia's foreign policy tradition and customs. Riyadh has always relied on three strategies to pursue its interests abroad: wealth, establish a global network and muslim education and diplomacy and meadiation. The term "proxy war" has experienced a new popularity in stories on the Middle East. A proxy war is two opposing countries avoiding direct war, and instead supporting combatants that serve their interests. In some occas...

  17. Jemen - the Proxy War

    Directory of Open Access Journals (Sweden)

    Magdalena El Ghamari

    2015-12-01

    Full Text Available The military operation in Yemen is significant departure from Saudi Arabia's foreign policy tradition and customs. Riyadh has always relied on three strategies to pursue its interests abroad: wealth, establish a global network and muslim education and diplomacy and meadiation. The term "proxy war" has experienced a new popularity in stories on the Middle East. A proxy war is two opposing countries avoiding direct war, and instead supporting combatants that serve their interests. In some occasions, one country is a direct combatant whilst the other supporting its enemy. Various news sources began using the term to describe the conflict in Yemen immediately, as if on cue, after Saudi Arabia launched its bombing campaign against Houthi targets in Yemen on 25 March 2015. This is the reason, why author try to answer for following questions: Is the Yemen Conflict Devolves into Proxy War? and Who's fighting whom in Yemen's proxy war?" Research area includes the problem of proxy war in the Middle East. For sure, the real problem of proxy war must begin with the fact that the United States and its NATO allies opened the floodgates for regional proxy wars by the two major wars for regime change: in Iraq and Libya. Those two destabilising wars provided opportunities and motives for Sunni states across the Middle East to pursue their own sectarian and political power objectives through "proxy war".

  18. How Could a Beaver Start a War?

    Science.gov (United States)

    Millward, Robert

    2010-01-01

    Students gain a better understanding of war and economics when the variables come alive through stories, artifacts, and paintings. In this article, the author describes a short story about the fur trade which can generate lots of student questions about the fur economics, the Eastern Woodland Indians, trade artifacts, and war. The author also…

  19. Revolutionary networks. Women’s political and social activism in Cold War Italy and Yugoslavia (1945-1957)

    NARCIS (Netherlands)

    Bonfiglioli, C.

    2012-01-01

    The Cold War era has generally been represented as a moment of conservatism when it comes to women’s activism. While women’s political participation in the Second World War had been studied in detail, women’s political and social activism in Cold War Europe has remained under-researched. In my

  20. Vulnerability of animal trade networks to the spread of infectious diseases: a methodological approach applied to evaluation and emergency control strategies in cattle, France, 2005.

    Science.gov (United States)

    Rautureau, S; Dufour, B; Durand, B

    2011-04-01

    Besides farming, trade of livestock is a major component of agricultural economy. However, the networks generated by live animal movements are the major support for the propagation of infectious agents between farms, and their structure strongly affects how fast a disease may spread. Structural characteristics may thus be indicators of network vulnerability to the spread of infectious disease. The method proposed here is based upon the analysis of specific subnetworks: the giant strongly connected components (GSCs). Their existence, size and geographic extent are used to assess network vulnerability. Their disappearance when targeted nodes are removed allows studying how network vulnerability may be controlled under emergency conditions. The method was applied to the cattle trade network in France, 2005. Giant strongly connected components were present and widely spread all over the country in yearly, monthly and weekly networks. Among several tested approaches, the most efficient way to make GSCs disappear was based on the ranking of nodes by decreasing betweenness centrality (the proportion of shortest paths between nodes on which a specific node lies). Giant strongly connected components disappearance was obtained after removal of emergency conditions, suspending animal trade activities in a small subset of holdings may thus allow to control the spread of an infectious disease through the animal trade network. Nodes representing markets and dealers were widely affected by these simulated control measures. This confirms their importance as 'hubs' for infectious diseases spread. Besides emergency conditions, specific sensitization and preventive measures should be dedicated to this population. © 2010 Blackwell Verlag GmbH.

  1. Spatial Bayesian belief networks as a planning decision tool for mapping ecosystem services trade-offs on forested landscapes.

    Science.gov (United States)

    Gonzalez-Redin, Julen; Luque, Sandra; Poggio, Laura; Smith, Ron; Gimona, Alessandro

    2016-01-01

    An integrated methodology, based on linking Bayesian belief networks (BBN) with GIS, is proposed for combining available evidence to help forest managers evaluate implications and trade-offs between forest production and conservation measures to preserve biodiversity in forested habitats. A Bayesian belief network is a probabilistic graphical model that represents variables and their dependencies through specifying probabilistic relationships. In spatially explicit decision problems where it is difficult to choose appropriate combinations of interventions, the proposed integration of a BBN with GIS helped to facilitate shared understanding of the human-landscape relationships, while fostering collective management that can be incorporated into landscape planning processes. Trades-offs become more and more relevant in these landscape contexts where the participation of many and varied stakeholder groups is indispensable. With these challenges in mind, our integrated approach incorporates GIS-based data with expert knowledge to consider two different land use interests - biodiversity value for conservation and timber production potential - with the focus on a complex mountain landscape in the French Alps. The spatial models produced provided different alternatives of suitable sites that can be used by policy makers in order to support conservation priorities while addressing management options. The approach provided provide a common reasoning language among different experts from different backgrounds while helped to identify spatially explicit conflictive areas. Copyright © 2015 Elsevier Inc. All rights reserved.

  2. The American Home Front: Revolutionary War, Civil War, World War I, World War II

    Science.gov (United States)

    1983-01-01

    seems as questionable as alchemy . Congress had little choice. It had no authority to tax individuals or to levy duties on trade. The country had no banks... plasma , penicillin and sulfa drugs. air and motor transport of the wounded. and field hospitals tested during World War I also dramatically reduced

  3. How do network companies seek legitimacy for public value trade offs? : The case of injecting biogas

    NARCIS (Netherlands)

    Steenhuisen, B.M.; de Bruijne, M.L.C.

    2016-01-01

    Network companies fulfill a critical role in the energy transition. The is article provides an empirical study of this role of a Dutch national gas network company connecting a biogas producer. This project requires choices about many intertwined technical and institutional variables. Choices

  4. Unpacking constructs: a network approach for studying war exposure, daily stressors and post-traumatic stress disorder

    OpenAIRE

    Maarten eDe Schryver; Sofie eVindevogel; Andrew Edward Rasmussen; Cramer, Angélique O. J.

    2015-01-01

    Conflict-affected populations are exposed to stressful events during and after war, and it is well established that both take a substantial toll on individuals’ mental health. Exactly how exposure to events during and after war affect mental health is a topic of considerable debate. Various hypotheses have been put forward on the relation between stressful war exposure (SWE), daily stressors (DS) and the development of post-traumatic stress disorder (PTSD). This paper seeks to contribute to t...

  5. Development of a forecasting model for brucellosis spreading in the Italian cattle trade network aimed to prioritise the field interventions.

    Science.gov (United States)

    Savini, L; Candeloro, L; Conte, A; De Massis, F; Giovannini, A

    2017-01-01

    Brucellosis caused by Brucella abortus is an important zoonosis that constitutes a serious hazard to public health. Prevention of human brucellosis depends on the control of the disease in animals. Livestock movement data represent a valuable source of information to understand the pattern of contacts between holdings, which may determine the inter-herds and intra-herd spread of the disease. The manuscript addresses the use of computational epidemic models rooted in the knowledge of cattle trade network to assess the probabilities of brucellosis spread and to design control strategies. Three different spread network-based models were proposed: the DFC (Disease Flow Centrality) model based only on temporal cattle network structure and unrelated to the epidemiological disease parameters; a deterministic SIR (Susceptible-Infectious-Recovered) model; a stochastic SEIR (Susceptible-Exposed-Infectious-Recovered) model in which epidemiological and demographic within-farm aspects were also modelled. Containment strategies based on farms centrality in the cattle network were tested and discussed. All three models started from the identification of the entire sub-network originated from an infected farm, up to the fifth order of contacts. Their performances were based on data collected in Sicily in the framework of the national eradication plan of brucellosis in 2009. Results show that the proposed methods improves the efficacy and efficiency of the tracing activities in comparison to the procedure currently adopted by the veterinary services in the brucellosis control, in Italy. An overall assessment shows that the SIR model is the most suitable for the practical needs of the veterinary services, being the one with the highest sensitivity and the shortest computation time.

  6. Racial Trade Barriers?

    DEFF Research Database (Denmark)

    Bjerre, Jacob Halvas

    Aryanization is associated with Nazi Germany's policies to exclude Jews in the Germany from the economy in the pre-war years, but I will show it was a global policy from 1937. The utopian goal of international Aryanization was the total removal of Jews who traded with Germany anywhere in the world...

  7. A hybrid Bayesian network approach for trade-offs between environmental flows and agricultural water using dynamic discretization

    Science.gov (United States)

    Xue, Jie; Gui, Dongwei; Lei, Jiaqiang; Sun, Huaiwei; Zeng, Fanjiang; Feng, Xinlong

    2017-12-01

    Agriculture and the eco-environment are increasingly competing for water. The extension of intensive farmland for ensuring food security has resulted in excessive water exploitation by agriculture. Consequently, this has led to a lack of water supply in natural ecosystems. This paper proposes a trade-off framework to coordinate the water-use conflict between agriculture and the eco-environment, based on economic compensation for irrigation stakeholders. A hybrid Bayesian network (HBN) is developed to implement the framework, including: (a) agricultural water shortage assessments after meeting environmental flows; (b) water-use tradeoff analysis between agricultural irrigation and environmental flows using the HBN; and (c) quantification of the agricultural economic compensation for different irrigation stakeholders. The constructed HBN is computed by dynamic discretization, which is a more robust and accurate propagation algorithm than general static discretization. A case study of the Qira oasis area in Northwest China demonstrates that the water trade-off based on economic compensation depends on the available water supply and environmental flows at different levels. Agricultural irrigation water extracted for grain crops should be preferentially guaranteed to ensure food security, in spite of higher economic compensation in other cash crops' irrigation for water coordination. Updating water-saving engineering and adopting drip irrigation technology in agricultural facilities after satisfying environmental flows would greatly relieve agricultural water shortage and save the economic compensation for different irrigation stakeholders. The approach in this study can be easily applied in water-stressed areas worldwide for dealing with water competition.

  8. Exploring Mechanisms Underlying Impaired Brain Function in Gulf War Illness through Advanced Network Analysis

    Science.gov (United States)

    2017-10-01

    inferior frontal cortex (IFC), dorsolateral prefrontal cortex(dlPFC), angular gyrus (AG), supramarginal gyrus (SMG), pre- supplementary motor area (pre...SMA) Language and semantic coding areas Medial prefrontal cortex (mPFC), frontal polar cortex, pre-colossal anterior cingulate cortex (ACC...posterior cingulate cortex (PCC) Action-outcome monitoring in default mode network (DMN) areas Anterior temporal lobe (ATL), amygdala, hippocampus (Hb

  9. Trablusgarb ve Balkan Savaşları’nın Osmanlı Devleti’nin Ticaret-i Hariciyesi Üzerindeki Etkileri The Impacts Of Tripolitanian And Balkan Wars On The Ottoman Foreign Trade

    Directory of Open Access Journals (Sweden)

    Filiz ÇOLAK

    2013-07-01

    Full Text Available The last ten years of the Ottoman State witnessed successivewars. These ten years began with the Tripolitanian War, which was aTurkish-Italian war, and ended with the Balkan Wars, World War I andTurkish War of Independence. These wars led to deterioration ofpolitical and economic conditions of the state and eventually to its fall.The Tripoli and Balkan Wars deeply influenced foreign policy andtrade of the Ottoman State. The Tripolitanian War began in 1911 whenItaly invaded Tripolitania and caused tension in the Ottoman-Italianeconomic relations even for a while. The same boycott, previouslyimplemented by the Ottoman State against Austrian goods as a result ofBosnia and Herzegovina invasion of Austria-Hungary in 1908, wasimplemented against Italian goods in 1911. The idea of boycott initiallycame up in the press, because the government was late to declare waragainst Italy. However Babıâli could not prevent Italian goods enteringthe country due to capitulations, therefore resorted to increase thecustoms duties taken from Italian goods. This policy continued until thepeace treaty in 1912.In 1912 the Ottoman State found itself at war with the BalkanLeague, an alliance formed by the Balkan States (Bulgaria, Greece,Montenegro, Serbia led by Bulgaria. Babıâli entered this war withoutany preparation and during the war Babıâli on the one hand tried tomeet army’s needs and on the other hand tried to take precautions byreviewing its economic relations with these countries. As a first step,like in the Tripolitanian War, Babıâli increased the customs dutiesapplied during trade activities with these Balkan countries and laterboycott was implemented against them by the Ottoman State. Thispolicy continued until the peace treaties in 1913 and ended after thepeace.In this study we will try to answer how these wars affected theforeign trade of the Ottoman State. The impact of these wars on theimport and export relations between Italy/Balkan States and

  10. Adaption of the temporal correlation coefficient calculation for temporal networks (applied to a real-world pig trade network).

    Science.gov (United States)

    Büttner, Kathrin; Salau, Jennifer; Krieter, Joachim

    2016-01-01

    The average topological overlap of two graphs of two consecutive time steps measures the amount of changes in the edge configuration between the two snapshots. This value has to be zero if the edge configuration changes completely and one if the two consecutive graphs are identical. Current methods depend on the number of nodes in the network or on the maximal number of connected nodes in the consecutive time steps. In the first case, this methodology breaks down if there are nodes with no edges. In the second case, it fails if the maximal number of active nodes is larger than the maximal number of connected nodes. In the following, an adaption of the calculation of the temporal correlation coefficient and of the topological overlap of the graph between two consecutive time steps is presented, which shows the expected behaviour mentioned above. The newly proposed adaption uses the maximal number of active nodes, i.e. the number of nodes with at least one edge, for the calculation of the topological overlap. The three methods were compared with the help of vivid example networks to reveal the differences between the proposed notations. Furthermore, these three calculation methods were applied to a real-world network of animal movements in order to detect influences of the network structure on the outcome of the different methods.

  11. The evolution of trade and scientific collaboration networks in the global wine sector; A longitudinal study using network analysis

    NARCIS (Netherlands)

    Cassi, L.; Morrison, A.; Wal, A. ter

    2012-01-01

    Throughout the past three decades, the global pattern of wine production has undergone fundamental changes, most notably the emergence of New World producers. This article presents a detailed account of the sector’s changing global organization from 1974 to 2004 by applying network analysis

  12. Unpacking constructs: a network approach for studying war exposure, daily stressors and post-traumatic stress disorder

    NARCIS (Netherlands)

    De Schryver, M.; Vindevogel, S.; Rasmussen, A.E.; Cramer, A.O.J.

    2015-01-01

    Conflict-affected populations are exposed to stressful events during and after war, and it is well established that both take a substantial toll on individuals’ mental health. Exactly how exposure to events during and after war affect mental health is a topic of considerable debate. Various

  13. Green collaboration in cognitive radio cellular networks with roaming and spectrum trading

    KAUST Repository

    Sboui, Lokman

    2015-08-30

    In this paper, we propose a new cognitive cellular network architecture based on the coexistence of primary and secondary networks, (PN) and (SN), respectively. The PN aims to minimize its energy consumption by switching off the maximum number of its BSs and offloading its users to the SN\\'s infrastructure to maintain its QoS. In return, the PN pays a roaming price and permits the SN to share or lease the spectrum at a certain price. We propose a low-complexity algorithm allowing the PN to minimize its energy consumption by selecting a suboptimal combination of active base stations. Our algorithm also optimizes the resource allocation of the SN to maximize its total sum-rate while respecting the minimal profit constraints for both networks. In the numerical results, we show that our proposed algorithm achieves close performances to the optimal exhaustive search algorithm. In addition, we investigate the impact of various system parameters in the collaboration decision.

  14. Business Associations, Conservative Networks, and the Ongoing Republican War over Medicaid Expansion.

    Science.gov (United States)

    Hertel-Fernandez, Alexander; Skocpol, Theda; Lynch, Daniel

    2016-04-01

    A major component of the Affordable Care Act involves the expansion of state Medicaid programs to cover the uninsured poor. In the wake of the 2012 Supreme Court decision upholding and modifying reform legislation, states can decide whether to expand Medicaid-and twenty states are still not proceeding as of August 2015. What explains state choices about participation in expansion, including governors' decisions to endorse expansion or not as well as final state decisions? We tackle this puzzle, focusing closely on outcomes and battles in predominantly Republican-led states. Like earlier scholars, we find that partisan differences between Democrats and Republicans are central, but we go beyond earlier analyses to measure added effects from two dueling factions within the Republican coalition: statewide business associations and cross-state networks of ideologically conservative organizations. Using both statistical modeling and case studies, we show that GOP-leaning or GOP-dominated states have been most likely to embrace the expansion when organized business support outweighs pressures from conservative networks. Our findings help make sense of ongoing state-level debates over a core part of health reform and shed new light on mounting policy tensions within the Republican Party. Copyright © 2016 by Duke University Press.

  15. Network design for quantifying urban CO2 emissions: assessing trade-offs between precision and network density

    Science.gov (United States)

    Turner, Alexander J.; Shusterman, Alexis A.; McDonald, Brian C.; Teige, Virginia; Harley, Robert A.; Cohen, Ronald C.

    2016-11-01

    The majority of anthropogenic CO2 emissions are attributable to urban areas. While the emissions from urban electricity generation often occur in locations remote from consumption, many of the other emissions occur within the city limits. Evaluating the effectiveness of strategies for controlling these emissions depends on our ability to observe urban CO2 emissions and attribute them to specific activities. Cost-effective strategies for doing so have yet to be described. Here we characterize the ability of a prototype measurement network, modeled after the Berkeley Atmospheric CO2 Observation Network (BEACO2N) in California's Bay Area, in combination with an inverse model based on the coupled Weather Research and Forecasting/Stochastic Time-Inverted Lagrangian Transport (WRF-STILT) to improve our understanding of urban emissions. The pseudo-measurement network includes 34 sites at roughly 2 km spacing covering an area of roughly 400 km2. The model uses an hourly 1 × 1 km2 emission inventory and 1 × 1 km2 meteorological calculations. We perform an ensemble of Bayesian atmospheric inversions to sample the combined effects of uncertainties of the pseudo-measurements and the model. We vary the estimates of the combined uncertainty of the pseudo-observations and model over a range of 20 to 0.005 ppm and vary the number of sites from 1 to 34. We use these inversions to develop statistical models that estimate the efficacy of the combined model-observing system in reducing uncertainty in CO2 emissions. We examine uncertainty in estimated CO2 fluxes on the urban scale, as well as for sources embedded within the city such as a line source (e.g., a highway) or a point source (e.g., emissions from the stacks of small industrial facilities). Using our inversion framework, we find that a dense network with moderate precision is the preferred setup for estimating area, line, and point sources from a combined uncertainty and cost perspective. The dense network considered here

  16. Network design for quantifying urban CO2 emissions: assessing trade-offs between precision and network density

    Directory of Open Access Journals (Sweden)

    A. J. Turner

    2016-11-01

    Full Text Available The majority of anthropogenic CO2 emissions are attributable to urban areas. While the emissions from urban electricity generation often occur in locations remote from consumption, many of the other emissions occur within the city limits. Evaluating the effectiveness of strategies for controlling these emissions depends on our ability to observe urban CO2 emissions and attribute them to specific activities. Cost-effective strategies for doing so have yet to be described. Here we characterize the ability of a prototype measurement network, modeled after the Berkeley Atmospheric CO2 Observation Network (BEACO2N in California's Bay Area, in combination with an inverse model based on the coupled Weather Research and Forecasting/Stochastic Time-Inverted Lagrangian Transport (WRF-STILT to improve our understanding of urban emissions. The pseudo-measurement network includes 34 sites at roughly 2 km spacing covering an area of roughly 400 km2. The model uses an hourly 1  ×  1 km2 emission inventory and 1  ×  1 km2 meteorological calculations. We perform an ensemble of Bayesian atmospheric inversions to sample the combined effects of uncertainties of the pseudo-measurements and the model. We vary the estimates of the combined uncertainty of the pseudo-observations and model over a range of 20 to 0.005 ppm and vary the number of sites from 1 to 34. We use these inversions to develop statistical models that estimate the efficacy of the combined model–observing system in reducing uncertainty in CO2 emissions. We examine uncertainty in estimated CO2 fluxes on the urban scale, as well as for sources embedded within the city such as a line source (e.g., a highway or a point source (e.g., emissions from the stacks of small industrial facilities. Using our inversion framework, we find that a dense network with moderate precision is the preferred setup for estimating area, line, and point sources from a combined uncertainty and cost

  17. Relationship of trade patterns of the Danish swine industry animal movements network to potential disease spread

    DEFF Research Database (Denmark)

    Bigras-Poulin, Michel; Barfod, Kristen; Mortensen, Sten

    2007-01-01

    , by providing network knowledge to the local veterinarian in charge of controlling disease spread, should also be evaluated as a potential tool to manage epidemics during the crisis. Geographic information systems could also be linked in the approach to produce knowledge about local transmission of disease....

  18. Trade-off analysis of ecosystem service provision in nature networks

    DEFF Research Database (Denmark)

    Vogdrup-Schmidt, Mathias; Strange, Niels; Olsen, Søren Bøye

    2017-01-01

    We propose a spatial multi-criteria decision analysis approach as a value-focused decision support tool for evaluating land use change decisions affecting multiple ecosystem services. In an empirical case study concerned with creating a robust and interconnected network of natural areas in a Danish...... municipality, we first conduct a biophysical and economic baseline mapping of ecosystem services. We then construct a spatially explicit multi-criteria decision analysis model which is utilized to identify candidate areas for inclusion in the network. We define a base scenario for future land use in the area......, where all criteria have equal weight, and assess the outcome in terms of welfare economic benefits of ecosystem services and opportunity cost of reducing forest and agricultural production. As weights in multi-criteria analysis is innately a subjective task, we conduct a sensitivity analysis using four...

  19. Policing Iranian Sanctions: Trade, Identity, and Smuggling Networks in the Arabian Gulf

    Science.gov (United States)

    2013-03-01

    2004, 50th Ed (New York: Europa Publications, 2004), 676.; Allan Hill, “The Demography of the Kuwaiti Population of Kuwait,” Demography 12, no. 3...exist solely for Iranian, GCC, and Indian ports. Some criminal networks traffic drugs into the GCC via personal boats that coordinate their movement...1929, Nader Habibi of Brandeis University uses the following International Monetary Fund statistics of the GCC nation with arguably the most

  20. On Political War

    Science.gov (United States)

    1989-12-01

    history before Hitler: leaving foreign wars aside, deaths through internal repressive measures conducted for ideological reasons amounted in Soviet Russia ... history have suggested keys to an understanding of the individual and social forces behind conflict. Their views have seldom stood the test of reality...who feared damage to his trade initiative), it later surfaced and served as a basis for a history of Muscovy written by Milton. A useful reminder for

  1. From Star Wars to 'turf wars'.

    Science.gov (United States)

    1999-09-01

    Just as we are witnessing the re-emergence of Star Wars, it seems the 'turf wars' that have dogged A&E care are back. Since its inception as a specialty, A&E nurses have been accused of being 'Jacks (and Jill's, to be politically correct) of all trades and masters of none'. The inference being that all we do is 'mind' patients until they receive definitive care. Clearly this is not the case. As A&E nurses have demonstrated over the years, our skills are in the recognition and management of acute illness or injury, regardless of the patient's age, physical or psychological condition. Rather than being a 'master of none' we are masters of immediate care.

  2. Reassessing supplier reputation in international trade coordination – a German and Australian perspective of global organic food networks

    Directory of Open Access Journals (Sweden)

    Bernzen, Amelie

    2014-09-01

    Full Text Available Uncertainties are especially high among importing firms and for products with sensitive and ‘critical’ quality characteristics in a societal context, such as food. While much recent literature on this issue has focused on the implementation of standards and certification systems, I argue that reputation also plays an important role for trading firms in mitigating uncertainties across large distances. Reputation may or may not reflect reality and is based on public (e.g. media and networked (from individuals information. This article draws on Convention Theory in a case study based on qualitative interviews among organic food importers to Germany and Australia. I first show that the degree of their public exposure implies specific risks and strongly influences importers’ coordination strategy. I then go on to examine how, in these firms’ supplier relations and risk management, not only the reputation of (potential suppliers counts, but also the reputation of supplier countries and institutional systems such as standards and certification bodies. Intensive involvement and first-hand experience with certifiers and suppliers in exporting countries can, in some cases, cause firms to challenge their existing beliefs. I conclude that a good reputation is still essential for (improving market access, even when basic prerequisites such as legally mandatory certification are fulfilled.

  3. Spectral and Power-Efficiency Trade-off in Fixed-Grid Optical Networks

    Directory of Open Access Journals (Sweden)

    Sridhar Iyer

    2017-09-01

    Full Text Available The improvement of spectral efficiency in the MLR networks can be obtained by the reduction of sub-band spacing, or by minimizing the spacing of the sub-bands that operate at varied data rates. However, due to the presence of physical layer impairments, minimization in sub-band spacing leads to adverse effects on the channel(s transmission reach. As a result there occurs an increase in the consumed power due to the requirement of increase in regeneration of the signal. In the current work we propose an improved DWDM grating in view of obtaining higher spectral efficiency. For a system, with and without Forward Error Correction capabilities (i for various SLR solutions, we find and compare power consumption values of the components with respect to the total traffic, and (ii for different MLR and SLR solutions, for a fixed QoT, we evaluate the minimum values of the sub-band and the channel spacing, and also evaluate and compare the power-efficiency with the distance of transmission.

  4. A Unifying Mathematical Framework for Genetic Robustness, Environmental Robustness, Network Robustness and their Trade-off on Phenotype Robustness in Biological Networks Part I: Gene Regulatory Networks in Systems and Evolutionary Biology.

    Science.gov (United States)

    Chen, Bor-Sen; Lin, Ying-Po

    2013-01-01

    Robust stabilization and environmental disturbance attenuation are ubiquitous systematic properties observed in biological systems at different levels. The underlying principles for robust stabilization and environmental disturbance attenuation are universal to both complex biological systems and sophisticated engineering systems. In many biological networks, network robustness should be enough to confer intrinsic robustness in order to tolerate intrinsic parameter fluctuations, genetic robustness for buffering genetic variations, and environmental robustness for resisting environmental disturbances. With this, the phenotypic stability of biological network can be maintained, thus guaranteeing phenotype robustness. This paper presents a survey on biological systems and then develops a unifying mathematical framework for investigating the principles of both robust stabilization and environmental disturbance attenuation in systems and evolutionary biology. Further, from the unifying mathematical framework, it was discovered that the phenotype robustness criterion for biological networks at different levels relies upon intrinsic robustness + genetic robustness + environmental robustness ≦ network robustness. When this is true, the phenotype robustness can be maintained in spite of intrinsic parameter fluctuations, genetic variations, and environmental disturbances. Therefore, the trade-offs between intrinsic robustness, genetic robustness, environmental robustness, and network robustness in systems and evolutionary biology can also be investigated through their corresponding phenotype robustness criterion from the systematic point of view.

  5. Analysis of the characteristics of the global virtual water trade network using degree and eigenvector centrality, with a focus on food and feed crops

    Directory of Open Access Journals (Sweden)

    S.-H. Lee

    2016-10-01

    Full Text Available This study aims to analyze the characteristics of global virtual water trade (GVWT, such as the connectivity of each trader, vulnerable importers, and influential countries, using degree and eigenvector centrality during the period 2006–2010. The degree centrality was used to measure the connectivity, and eigenvector centrality was used to measure the influence on the entire GVWT network. Mexico, Egypt, China, the Republic of Korea, and Japan were classified as vulnerable importers, because they imported large quantities of virtual water with low connectivity. In particular, Egypt had a 15.3 Gm3 year−1 blue water saving effect through GVWT: the vulnerable structure could cause a water shortage problem for the importer. The entire GVWT network could be changed by a few countries, termed "influential traders". We used eigenvector centrality to identify those influential traders. In GVWT for food crops, the USA, Russian Federation, Thailand, and Canada had high eigenvector centrality with large volumes of green water trade. In the case of blue water trade, western Asia, Pakistan, and India had high eigenvector centrality. For feed crops, the green water trade in the USA, Brazil, and Argentina was the most influential. However, Argentina and Pakistan used high proportions of internal water resources for virtual water export (32.9 and 25.1 %; thus other traders should carefully consider water resource management in these exporters.

  6. Analysis of the characteristics of the global virtual water trade network using degree and eigenvector centrality, with a focus on food and feed crops

    Science.gov (United States)

    Lee, Sang-Hyun; Mohtar, Rabi H.; Choi, Jin-Yong; Yoo, Seung-Hwan

    2016-10-01

    This study aims to analyze the characteristics of global virtual water trade (GVWT), such as the connectivity of each trader, vulnerable importers, and influential countries, using degree and eigenvector centrality during the period 2006-2010. The degree centrality was used to measure the connectivity, and eigenvector centrality was used to measure the influence on the entire GVWT network. Mexico, Egypt, China, the Republic of Korea, and Japan were classified as vulnerable importers, because they imported large quantities of virtual water with low connectivity. In particular, Egypt had a 15.3 Gm3 year-1 blue water saving effect through GVWT: the vulnerable structure could cause a water shortage problem for the importer. The entire GVWT network could be changed by a few countries, termed "influential traders". We used eigenvector centrality to identify those influential traders. In GVWT for food crops, the USA, Russian Federation, Thailand, and Canada had high eigenvector centrality with large volumes of green water trade. In the case of blue water trade, western Asia, Pakistan, and India had high eigenvector centrality. For feed crops, the green water trade in the USA, Brazil, and Argentina was the most influential. However, Argentina and Pakistan used high proportions of internal water resources for virtual water export (32.9 and 25.1 %); thus other traders should carefully consider water resource management in these exporters.

  7. Empirical research on complex networks modeling of combat SoS based on data from real war-game, Part I: Statistical characteristics

    Science.gov (United States)

    Chen, Lei; Kou, Yingxin; Li, Zhanwu; Xu, An; Wu, Cheng

    2018-01-01

    We build a complex networks model of combat System-of-Systems (SoS) based on empirical data from a real war-game, this model is a combination of command & control (C2) subnetwork, sensors subnetwork, influencers subnetwork and logistical support subnetwork, each subnetwork has idiographic components and statistical characteristics. The C2 subnetwork is the core of whole combat SoS, it has a hierarchical structure with no modularity, of which robustness is strong enough to maintain normal operation after any two nodes is destroyed; the sensors subnetwork and influencers subnetwork are like sense organ and limbs of whole combat SoS, they are both flat modular networks of which degree distribution obey GEV distribution and power-law distribution respectively. The communication network is the combination of all subnetworks, it is an assortative Small-World network with core-periphery structure, the Intelligence & Communication Stations/Command Center integrated with C2 nodes in the first three level act as the hub nodes in communication network, and all the fourth-level C2 nodes, sensors, influencers and logistical support nodes have communication capability, they act as the periphery nodes in communication network, its degree distribution obeys exponential distribution in the beginning, Gaussian distribution in the middle, and power-law distribution in the end, and its path length obeys GEV distribution. The betweenness centrality distribution, closeness centrality distribution and eigenvector centrality are also been analyzed to measure the vulnerability of nodes.

  8. Description and analysis of the poultry trading network in the Lake Alaotra region, Madagascar: implications for the surveillance and control of Newcastle disease.

    Science.gov (United States)

    Rasamoelina-Andriamanivo, H; Duboz, R; Lancelot, R; Maminiaina, O F; Jourdan, M; Rakotondramaro, T M C; Rakotonjanahary, S N; de Almeida, R Servan; Rakotondravao; Durand, B; Chevalier, V

    2014-07-01

    Madagascar's 36.5-million-head poultry industry holds a foremost place in its economy and the livelihood of its people. Unfortunately, regular Newcastle disease outbreaks associated with high mortality causes high losses for smallholders and threatens their livelihood. Therefore, Madagascar is seeking concrete, achievable and sustainable methods for the surveillance and the control of Newcastle disease. In this paper, we present and analyze the results of a field study conducted in Madagascar between December 2009 and December 2010. The study area was the Lac Alaotra region, a landlocked area in the north-eastern part of the country's center. Poultry trading is suspected of playing a major role in the spread of avian diseases, especially in developing countries characterized by many live-bird markets and middlemen. Therefore, the goals of our study were to: (i) describe and analyze smallholders' poultry trading network in the Lake Alaotra region using social network analysis; (ii) assess the role of the network in the spread of Newcastle disease; and (iii) propose the implementation of a targeted disease surveillance based on the characteristics of the poultry trading network. We focused our field study on the harvesting of two data sets. The first is a complete description of the poultry trading network in the landlocked area of Lac Alaotra, including a description of the poultry movements between groups of villages. The second set of data measures the occurrence of outbreaks in the same area by combining a participatory approach with an event-based surveillance method. These data were used to determine the attributes of the network, and to statistically assess the association between the position of nodes and the occurrence of outbreaks. By using social network analysis techniques combined with a classification method and a logistic model, we finally identified 3 nodes (set of villages), of the 387 in the initial network, to focus on for surveillance and control

  9. Probabilistic information transmission in a network of coupled oscillators reveals speed-accuracy trade-off in responding to threats

    Science.gov (United States)

    Chicoli, Amanda; Paley, Derek A.

    2016-11-01

    Individuals in a group may obtain information from other group members about the environment, including the location of a food source or the presence of a predator. Here, we model how information spreads in a group using a susceptible-infected-removed epidemic model. We apply this model to a simulated shoal of fish using the motion dynamics of a coupled oscillator model, in order to test the biological hypothesis that polarized or aligned shoaling leads to faster and more accurate escape responses. The contributions of this study are the (i) application of a probabilistic model of epidemics to the study of collective animal behavior; (ii) testing the biological hypothesis that group cohesion improves predator escape; (iii) quantification of the effect of social cues on startle propagation; and (iv) investigation of the variation in response based on network connectivity. We find that when perfectly aligned individuals in a group are startled, there is a rapid escape by individuals that directly detect the threat, as well as by individuals responding to their neighbors. However, individuals that are not startled do not head away from the threat. In startled groups that are randomly oriented, there is a rapid, accurate response by individuals that directly detect the threat, followed by less accurate responses by individuals responding to neighbor cues. Over the simulation duration, however, even unstartled individuals head away from the threat. This study illustrates a potential speed-accuracy trade-off in the startle response of animal groups, in agreement with several previous experimental studies. Additionally, the model can be applied to a variety of group decision-making processes, including those involving higher-dimensional motion.

  10. Ground Wars

    DEFF Research Database (Denmark)

    Nielsen, Rasmus Kleis

    Political campaigns today are won or lost in the so-called ground war--the strategic deployment of teams of staffers, volunteers, and paid part-timers who work the phones and canvass block by block, house by house, voter by voter. Ground Wars provides an in-depth ethnographic portrait of two...... of ground war tactics for how we understand political campaigns and what it means to participate in them. He shows how ground wars are waged using resources well beyond those of a given candidate and their staff. These include allied interest groups and civic associations, party-provided technical...... of professionals. Yet he also quashes the romantic idea that canvassing is a purer form of grassroots politics. In today's political ground wars, Nielsen demonstrates, even the most ordinary-seeming volunteer knocking at your door is backed up by high-tech targeting technologies and party expertise. Ground Wars...

  11. WAR HORSES:

    DEFF Research Database (Denmark)

    War Horses: Helhesten and the Danish Avant-Garde During World War II This exhibition is the first to explore the history and significance of the accomplishments of Danish artists working during the Nazi occupation of their country (1940-45), who called themselves Helhesten, such as Ejler Bille......-1951), which they became part of. Cobra greatly influenced the development of European modern art after World War II. The exhibition includes over 100 works and reconstructs for the first time the most important exhibition these artists staged in Denmark during the war, 13 Artists in a Tent (1941). It draws...

  12. Permit trading and credit trading

    DEFF Research Database (Denmark)

    Boom, Jan-Tjeerd; R. Dijstra, Bouwe

    This paper compares emissions trading based on a cap on total emissions (permit trading) and on relative standards per unit of output (credit trading). Two types of market structure are considered: perfect competition and Cournot oligopoly. We find that output, abatement costs and the number....... Environmental policy can lead to exit, but also to entry of firms. Entry and exit have a profound impact on the performance of the schemes, especially under imperfect competition. We find that it may be impossible to implement certain levels of total industry emissions. Under credit trading several levels...... of firms are higher under credit trading. Allowing trade between permit-trading and credit-trading sectors may increase in welfare. With perfect competition, permit trading always leads to higher welfare than credit trading. With imperfect competition, credit trading may outperform permit trading...

  13. The War on War League: A South African pacifist movement, 1914 ...

    African Journals Online (AJOL)

    The outbreak of the First World War divided the South African Labour Party, a movement representing the country's white working class. The party's parliamentary delegation supported South African government's participation in the war effort, but many leadership figures within the party and the trade unions disagreed with ...

  14. Transport networks and international trade: the flows of exports of the steel and metallurgical industry in north of Minas Gerais/Redes de transportes e comercio internacional: os fluxos das exportacoes do setor siderurgico-metalurgico no norte de Minas Gerais

    National Research Council Canada - National Science Library

    Pereira, Luiz Andrei Goncalves; Ferreira, William Rodrigues

    2013-01-01

    The system of trade in goods and services in international trade has become more complex and articulated in a process of spatial interaction, which occurs from the organization of transport networks...

  15. [Sociabilities, networks and the circulation of knowledges in the creation of a "psy scope" in Argentina during the inter-war period (Santa Fe, 1919-1943)].

    Science.gov (United States)

    Allevi, José Ignacio

    2016-01-01

    This article presents the findings of a research study on the construction of a psy scientific field in Argentina during the inter-war period, with a focus on subnational spaces. After 1920, the mental hygiene movement, in its different disciplinary manifestations, became notable in the public sphere, in university education and - belatedly - in healthcare policies, in an expansion that led to the creation of an autonomous field with its own logic. I argue that the creation of this "psy field" - while it was as yet inexistent - was largely due to the strength of sociability networks that facilitated the management of resources and institutional spaces of power, making it possible for the field to become independent and established.

  16. Trade credit: Elusive insurance of firm growth

    NARCIS (Netherlands)

    Bams, Dennis; Bos, Jaap; Pisa, Magdalena

    2016-01-01

    Firms depend heavily on trade credit. This paper introduces a trade credit network into a structural model of the economy. In an empirical analysis of the model, we find that trade credit is an elusive insurance: as long as a firm is financially unconstrained and times are good, more trade credit

  17. Multidimensionality and Gravity in Global Trade, 1950-2000

    Science.gov (United States)

    Zhou, Min

    2010-01-01

    The expansion of global trade in the post-war period is subject to various interpretations. Some stress the trade-promoting role of the novel features in the world economy; some insist on the role of traditional factors, such as geographic distance, political difference and cultural dissimilarity, in continuously depressing trade flows; others…

  18. Optimization of the transmission system for wavelength routed optical network: trade-off between node complexity and transmission channel utilization

    DEFF Research Database (Denmark)

    Limal, Emmanuel; Hjelme, Dag Roar; Stubkjær, Kristian Elmholdt

    1998-01-01

    We study the influence of the number of wavelengths per fibre and the line bit rate on network dimensions and transmission capacity utilisation for wavelength routed optical transport networks. The networks considered are of European scale, and the traffic matrices used are projections of a traffic...

  19. New wars, new morality?

    NARCIS (Netherlands)

    Akkerman, T.

    2009-01-01

    Has war fundamentally changed? If so, it may be time for reconsidering accepted moral standards for waging wars and for conduct in war. The new war thesis holds that wars have fundamentally altered since the end of the Cold War. Proponents such as Kaldor and Weiss hold that wars today are intrastate

  20. Trade Agreements

    OpenAIRE

    Kowalczyk, Carsten; Riezman, Raymond

    2009-01-01

    This paper reviews the most significant recent developments in the theory of trade agreements. The paper offers an integrated approach to evaluating trade agreements, and uses the approach to present results on preferential and multilateral trade agreements. The paper identifies also several questions for further research.

  1. Preparing for One War and Getting Another?

    Science.gov (United States)

    2010-09-01

    that deserves discussion is the FARC. According to some, it became a major political factor in Colom - bia only because the narcotics trade provided...definition of the concept. Moreover, when Joseph Stalin and Mao most de- sired a rapid and decisive campaign in the spring of 1951 to push United...War, Princeton, NJ: Princeton University, 1996. 20. Joseph Maiolo, Cry Havoc: How the Arms Race Drove the World to War 1931-1941, New York: Basic

  2. Soil water and carbon management for agricultural resilience in a key node in the global virtual water trade network: Mato Grosso, Brazil

    Science.gov (United States)

    Johnson, M. S.; Speratti, A. B.; Lathuilliere, M. J.; Dalmagro, H. J.; Couto, E. G.

    2015-12-01

    The Amazon region is globally connected through agricultural exports, with the Brazilian state of Mato Grosso in particular emerging as a key node in the global virtual water trade network in recent years, based largely on rainfed agriculture. The anticipated growth in the world's population suggests that virtual water trade will only become more important to global food security. In this presentation we will evaluate strategies for improving the resilience of rainfed agriculture in the region, particularly for the nearly 12 million hectares of sandy soil with low water holding capacity within Mato Grosso that has largely been converted to agricultural use. We will review land use change trajectories and present results from soil water balance modeling and carbon fluxes for a range of future scenarios, including continued agricultural extensification, potential strategies for agricultural intensification, and novel water and carbon management strategies including biochar use in sandy soils to improve soil water holding capacities and soil carbon sequestration. We will also consider the role that irrigation might play in the future in the Amazon for improving agricultural resilience to climate change and feedbacks between irrigation and land use change pressures, noting that groundwater resources in the region are presently among the least exploited on the planet.

  3. Beyond Vom Kriege: The Character and Conduct of Modern War

    National Research Council Canada - National Science Library

    Hooker, Jr, R. D

    2005-01-01

    It is the tragedy of history that man cannot free himself from war. Indeed, far more than by the development of art or literature or trade or political institutions, the history of man has been determined by the wars he has fought...

  4. Trading Agents

    CERN Document Server

    Wellman, Michael

    2011-01-01

    Automated trading in electronic markets is one of the most common and consequential applications of autonomous software agents. Design of effective trading strategies requires thorough understanding of how market mechanisms operate, and appreciation of strategic issues that commonly manifest in trading scenarios. Drawing on research in auction theory and artificial intelligence, this book presents core principles of strategic reasoning that apply to market situations. The author illustrates trading strategy choices through examples of concrete market environments, such as eBay, as well as abst

  5. War games

    DEFF Research Database (Denmark)

    Kural, René

    2005-01-01

    Artiklen omhandler Imperial War Museum North tegnet af den polsk-amerikanske arkitekt Daniel Libeskind. Det er hans første projekt i Storbritannien og Englands femte krigsmuseum. Libeskind vand konkurrencen allerede i 1997, men først 5. juli 2002 kunne dørene slås op. Artiklen diskuterer om der e...

  6. Rutherford's war

    Science.gov (United States)

    Campbell, John

    2016-02-01

    Seagulls, sea lions and the comic-book hero Professor Radium were all recruited to fight the threat of submarines during the First World War. But as John Campbell explains, it was Ernest Rutherford who led the way a century ago in using acoustics to deter these deadly craft.

  7. Sketching War

    DEFF Research Database (Denmark)

    Engberg-Pedersen, Anders

    2014-01-01

    During the Napoleonic Wars the military croquis, or sketch map, played an important role in the spatial management of the various campaigns. Presumably, many of these sketch maps were destroyed or discarded after their immediate use. Those that survive have received little scholarly notice. Atten...

  8. Trade-off Analysis of Virtual Inertia and Fast Primary Frequency Control During Frequency Transients in a Converter Dominated Network

    DEFF Research Database (Denmark)

    Rezkalla, Michel M.N.; Marinelli, Mattia; Pertl, Michael

    2016-01-01

    Traditionally the electricity generation is based on rotating synchronous machines which provide inertia to the power system.The increasing share of converter connected energy sources reduces the available rotational inertia in the power system leading to faster frequency dynamics, which may cause...... more critical frequency excursions. Both, virtual inertia and fast primary control could serve as a solution to improvefrequency stability, however, their respective impacts on the system have different consequences, so that the trade-off is not straightforward. This study presents a comparative...... analysis of virtual inertiaand a fast primary control algorithms with respect to rate of change of frequency (ROCOF), frequency nadir and steady state value considering the effect of the dead time which is carried out by a sensitivity analysis. The investigation shows that the virtual inertia controller...

  9. "Churyumov Unified Network": New, Important Tasks for Astronomical Observatories to Protect Society in the Era of Modern Hybrid Wars

    Science.gov (United States)

    Churyumov, K. I.; Vidmachenko, A. P.; Steklov, A. F.; Dashkiev, N. G.; Romanyuk, Ya. O.; Stepakhno, I. V.

    2016-12-01

    Authors created and provided the operation of the first version of the "Bolide Network of Churyumov" for continuous recording of twilight and daytime traces of aerial and aerospace intrusions over Kiev and Kiev district during 2013-2016. A total of more than 36000 copyright photos was obtained, their classification was carried out and the first database was created. The authors recorded typical space invading meteoroids, comets nucleus fragments and traces of aerial intrusions, signs of which, as a rule, are observed at lower altitudes comparing with typical space invasions.

  10. Past, Present and Future: GATT, Free Trade Areas and... the World Trade Organization?

    Directory of Open Access Journals (Sweden)

    Gonzalo Bernardos

    1995-07-01

    Full Text Available The aims of this article are, on the one hand, to carry out a reconsideration of the workings of the commercial system since the Bretton Woods agreements and, on the other hand, to make some reflections regarding the function that the World Trade Organizationmust carry out in the future in a world divided, probably just like now, in regional areas of free trade. In order to achieve these aims the following are specified: the bases on which the liberalization of trade has been founded after the Second World War, the causes whichprovoked the wave of protectionism in the Eighties, the reasons which have brought about the division of the world into trading blocks as well as the need for an organization which encourages inter-regional trade and reduces the commercial wars between these blocks.

  11. Emissions Trading

    NARCIS (Netherlands)

    Woerdman, Edwin; Backhaus, Juergen

    2014-01-01

    Emissions trading is a market-based instrument to achieve environmental targets in a cost-effective way by allowing legal entities to buy and sell emission rights. The current international dissemination and intended linking of emissions trading schemes underlines the growing relevance of this

  12. Organ Trade

    NARCIS (Netherlands)

    J.A.E. Ambagtsheer (Frederike)

    2017-01-01

    markdownabstractOrgan trade constitutes the sale and purchase of organs for financial or material gain. Although prohibited since the 1980s, an increasing number of reports indicate its proliferation across the globe. Yet, many knowledge gaps exist on organ trade, in particular on the demand -and

  13. Physicians and Insider Trading.

    Science.gov (United States)

    Kesselheim, Aaron S; Sinha, Michael S; Joffe, Steven

    2015-12-01

    Although insider trading is illegal, recent high-profile cases have involved physicians and scientists who are part of corporate governance or who have access to information about clinical trials of investigational products. Insider trading occurs when a person in possession of information that might affect the share price of a company's stock uses that information to buy or sell securities--or supplies that information to others who buy or sell--when the person is expected to keep such information confidential. The input that physicians and scientists provide to business leaders can serve legitimate social functions, but insider trading threatens to undermine any positive outcomes of these relationships. We review insider-trading rules and consider approaches to securities fraud in the health care field. Given the magnitude of the potential financial rewards, the ease of concealing illegal conduct, and the absence of identifiable victims, the temptation for physicians and scientists to engage in insider trading will always be present. Minimizing the occurrence of insider trading will require robust education, strictly enforced contractual provisions, and selective prohibitions against high-risk conduct, such as participation in expert consulting networks and online physician forums, by those individuals with access to valuable inside information.

  14. From the Eighty Years War to the Second World War: New Perspectives on the Economic Effects of War

    NARCIS (Netherlands)

    't Hart, M.C.

    2014-01-01

    Most historians used to regard war as economically destructive. They focused on short-term damage to the economy, guided by archives that were dominated by documents related to reparation demands and official statistics that did not take the black market and the re-routing of trade into account.

  15. Road Transportation, Agriculture and Trade in Western Nigeria after ...

    African Journals Online (AJOL)

    This paper examines the role and impact of road transportation on the economy of southwestern Nigeria after World War II. The focus is on how road transportation promoted agriculture and trade. The study of the post. World War II period is important because it enables us to examine two crucial elements in the economic ...

  16. The English mahogany trade 1700-1793

    OpenAIRE

    Bowett, Adam

    2011-01-01

    This thesis describes the origins and development of the English mahogany trade from its origins to the beginning of the French Revolutionary War. It is based primarily on statistical and commercial information, most of which is drawn from government and other official sources. The bulk of the text is a chronological account, charting the growth of the trade from its small beginnings in Jamaica after 1700 to its late eighteenth century heyday. It considers the effect of economic conditions, s...

  17. The Forgotten War: Korea.

    Science.gov (United States)

    Fleming, Dan B.; Kaufman, Burton I.

    1990-01-01

    Evaluates the coverage of the Korean War in 12 high school history textbooks. Lists the books, and reviews the coverage of each in the areas of: total coverage and illustrations; Korean war background; causes of the War; the Truman response; waging the War; the Truman-MacArthur controversy; and the results of the War. (GG)

  18. International trade disputes in modern regulatory paradigm

    Directory of Open Access Journals (Sweden)

    Tamara Gordeeva

    2013-09-01

    Full Text Available This article studies the latest trends observed in the area of contradictory relations between countries with regard to international trade, which cause changes in the paradigm of international trade disputes. It has been found out that any state of inconsistent relations between the countries is recently characterized as a «trade war». It has been analyzed the notions of «dispute», «conflict», «war» according to international regulatory documents and determined the applicability of these terms depending on a number of criteria. It has been studied the evolution of the objects of international trade disputes since the time of ancient Greece until today, and new trends based on this have been revealed with regard to use of trade policy instruments that cause disputes between countries. Several specific examples of international trade disputes and causes of their occurrence have been considered. A quantitative analysis of international trade disputes in general and in relations between the leading countries in terms of a number of the trade disputes in which they were involved has been performed.

  19. Disentangling trade-offs and synergies around ecosystem services with the influence network framework: illustration from a consultative process over the French Alps

    Directory of Open Access Journals (Sweden)

    Emilie Crouzat

    2016-06-01

    Full Text Available An important aspect of sustainability is to maintain biodiversity and ecosystem functioning while improving human well-being. For this, the ecosystem service (ES approach has the potential to bridge the still existing gap between ecological management and social development, especially by focusing on trade-offs and synergies between ES and between their beneficiaries. Several frameworks have been proposed to account for trade-offs and synergies between ES, and between ES and other components of social-ecological systems. However, to date, insufficient explicit attention has been paid to the three facets encompassed in the ES concept, namely potential supply, demand, and use, leading to incomplete descriptions of ES interactions. We expand on previous frameworks by proposing a new influence network framework (INF based on an explicit consideration of influence relationships between these three ES facets, biodiversity, and external driving variables. We tested its ability to provide a comprehensive view of complex social-ecological interactions around ES through a consultative process focused on environmental management in the French Alps. We synthetized the interactions mentioned during this consultative process and grouped variables according to their overall propensity to influence or be influenced by the system. The resulting directed sequence of influences distinguished between: (1 mostly influential variables (dynamic social variables and ecological state variables, (2 target variables (provisioning and cultural services, and (3 mostly impacted variables (regulating services and biodiversity parameters. We discussed possible reasons for the discrepancies between actual and perceived influences and proposed options to overcome them. We demonstrated that the INF holds the potential to deliver collective assessments of ES relations by: (1 including ecological as well as social aspects, (2 providing opportunities for colearning processes between

  20. Comparative systems and the functioning of networks: the Caribbean and Indo-Pacific models of trade. XVII and XVIII centuries

    Directory of Open Access Journals (Sweden)

    Picazo Muntaner, Antoni

    2015-06-01

    Full Text Available All commercial networks operating during the First Global Age in the Atlantic and Indo-Pacific systems had a number of common elements, although it is also true that in these two areas of study, very different dynamics emerged. In both areas, the strategies implemented by networks were designed to make them extremely cooperative, very dynamic, with a nonlinear structure and multifunctional. In contrast, noteworthy among the most significant differences is the high degree of participation of native traders and commercial networks in the Asia-Pacific, with Europeans taking part and learning alongside them, while the Atlantic, and the Caribbean in particular, were essentially European in nature.Todas las redes mercantiles que operaron en la primera Edad Global en el sistema Atlántico y en el Indo- Pacífico tuvieron una serie de elementos comunes, aunque también es cierto que en las dos áreas de estudio se crearon dinámicas muy diferentes. En ambas zonas las estratégicas que implementaron las redes estuvieron configuradas por una cooperación muy elevada, un fuerte dinamismo, una estructura no lineal y polifuncional. En cambio, entre las diferencias más significativas destacaría la elevada participación en Asia-Pacífico de comerciantes y redes mercantiles nativas junto a las que participaron y aprendieron las europeas, mientras que el Atlántico, y el Caribe en particular, fueron básicamente de índole europea.

  1. Foreign Trade

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Foreign Trade database has monthly volume and value information for US imports, exports, and re-exports of fishery or fishery derived products. Data is...

  2. Sexual networks in Uganda: mixing patterns between a trading town, its rural hinterland and a nearby fishing village.

    Science.gov (United States)

    Pickering, H; Okongo, M; Ojwiya, A; Yirrell, D; Whitworth, J

    1997-08-01

    The study was based in south-west Uganda where significant differences in HIV prevalence have been found between urban and rural areas. Longitudinal data collected in a diary format was used to determine the extent to which high-risk men and women living in a truck stop/trading town had sexual contact with people from surrounding rural areas and a nearby fishing village. Study participants were 143 men, 75 of whom were resident in the town, 40 in a fishing village and 28 in rural areas, and 81 women, of whom 47 were resident in the town, 25 in the fishing village and 9 in a rural area. During 1687 man weeks the 143 men made 3149 trips and had 5189 sexual contacts. Ninety-two per cent of these sexual contacts occurred in the man's current place of residence and 21% were with a new partner. The 81 women participated for 1280 women weeks during which they recorded 6378 sexual contacts. Women who lived in the fishing village and the rural area had around 90% of their contacts with local men while those who lived in the town fell into 3 categories: women who charged a relatively high price for commercial sex had only 11% of contacts with men living in the town, while those who charged a tenth of the price had 71% of contacts with town men. The small number of women who fell into an intermediate category, in terms of price, had sexual contact with a wide variety of men. These findings show that there is little scope for HIV infection to spread between different residential or occupational groups. This may help to explain how large differences in HIV seropositivity between neighbouring localities can be maintained for long periods, despite considerable social and economic mixing between groups and high levels of sexual partner change within groups.

  3. Turkish Independence War and its consequences

    Directory of Open Access Journals (Sweden)

    Alexandru‑Nicolae Cucu

    2014-11-01

    Full Text Available At the end of the First World War, the Ottoman Empire collapsed and the Great Powers came to take the control of its territories. Having a strategic position at the southern gate of Europe, all of Turkish lands were very important for the First World War winners, both to secure European borders and to develop the trade between Europe and Middle East. On the other side, under Mustafa Kemal Atatürk command, a new Turkey with a strong nationalist way decided to fight for emancipating. Winning the war with the Great Powers not only in a military way, but also from a diplomatic perspective, the new Turkey became a modern regional power, having institutions and laws that assured its prosperity and security. Taking into consideration the independence war evolution, this paper wants also to show the diplomatic capability of Turkish leaders to balance between powers involved in the region.

  4. Trade-off between virality and mass media influence in the topological evolution of online social networks

    CERN Document Server

    Kleineberg, Kaj-Kolja

    2014-01-01

    Nowadays, available comprehensive datasets of online social networks (OSNs) have enabled researchers to study the social universe at a previously unattainable scale. The worldwide impact of OSNs and the necessity to sustain their rapid growth emphasize the importance to unravel the laws governing their evolution. However, the co-existence of interacting OSNs competing for the same users makes the identification of such laws challenging. Here, we study an OSN with a unique set of properties --a very high population coverage, a language-induced isolation, and the absence of strong competitors-- which allows us to gauge the fundamental mechanisms responsible for the growth of a quasi-isolated OSN. Our findings suggest that the coupling between the real pre-existing underlying social structure, a viral spreading mechanism, and the influence of the mass media play an essential role in the evolution of OSNs. The empirical validation of these ideas allows us to draw the following conclusions. First, the viral effect...

  5. Security-Reliability Trade-Off Analysis for Multiuser SIMO Mixed RF/FSO Relay Networks With Opportunistic User Scheduling

    KAUST Repository

    El-Malek, Ahmed H. Abd

    2016-05-24

    In this paper, we study the performance of multiuser single-input multiple-output mixed radio frequency (RF)/free space optical (FSO) relay network with opportunistic user scheduling. The considered system includes multiple users, one amplify-and-forward relay, one destination, and a multiple-antenna eavesdropper. The users are connected with the relay node through RF links and the relay is connected with the destination through an FSO link. Both maximum ratio combining and selection combining schemes are used at the multiple-antenna relay to combine the signal received from the best user on different antennas. The RF/FSO channels models are assumed to follow Nakagami-m/gamma-gamma fading models with pointing errors. Closed-form expressions are derived for the outage probability, average symbol error probability, and ergodic channel capacity. Then, the power of the selected best user is determined to minimize the system asymptotic outage probability under the dominant RF or FSO link. Then, the considered system secrecy performance is investigated, where the closed-form expressions for the intercept probability are derived. Finally, we propose a new cooperative jamming model in which the worst user is selected by the authorized system to jam the existing eavesdropper. Monte-Carlo simulations are provided to validate the achieved exact and asymptotic results.

  6. Empowerment of Marginalized Producer Groups through Fair Trade ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Fair Trade Forum is a market-based approach to empowering producers and promoting sustainability. Fair Trade Forum India (FTF I) is the national network of fair trade organizations and federations throughout India. As part of the Fair Trade commitment to the environment, members develop a range of ecologically friendly ...

  7. Information War in Syria

    Directory of Open Access Journals (Sweden)

    Nikita A. Smirnov

    2015-01-01

    Full Text Available In recent years, in many countries around the world the role of society in political decision making quickly strengthened, and the population is increasingly affects the position of the state leaders. For countries pretending to have the support of its policies in other regions, public diplomacy is an essential tool. Today, public diplomacy is regularly used in various conflicts, one of which is the civil war in Syria. Media, Internet, social networks and other tools are used daily to cover the events and create the necessary views of the population in different countries. At the beginning of the article the reasons for the outbreak of the war are discussed from the standpoints of the main actors - the current Syrian government and its opposition, as well as their allies and enemies. The causes of the conflict are essential for further evaluation of the evs, so diametrically opposite points of view of the main actors of the events are analyzed in the material. Then we consider the coverage of the war, because period of direct military action is important to assess the behavior of its members. Among the most important and controversial topics covered by the international media in the conflict, are the use of prohibited weapons, killing of civilians, a violation of international agreements. Determination of the prospects of civil war in Syria is also critical when planning further action by all these events. To get the necessary public support, the parties are trying to have different interpretation of further scenarios. Much depends on this: whether the country's population supports the direction of further assistance or troops, how residents of other countries would react to a further continuation of the conflict, or how the representatives of international organizations would answer the question about the legitimacy of any move. The formation of public opinion in different countries aimed at obtaining approval of its policy on the part of the

  8. Fear Trading

    OpenAIRE

    Ardia, David

    2003-01-01

    Our trading strategy is inspired from the paper "implied volatility indices as leading indicators of stock index returns?", Giot (2002,[3]). It uses stylized facts observed in stock markets: the so called "leverage effect", the clustering and the mean-reverting behaviour of the implied volatility. Based on S&P100 and VIX data, we show that abnormally high levels of volatility can be used as a trading signals for long traders. A bootstrap procedure confirms the significant returns for the 1986...

  9. Vietnam: Historians at War

    Science.gov (United States)

    Moyar, Mark

    2008-01-01

    Although the Vietnam War ended more than thirty years ago, historians remain as divided on what happened as the American people were during the war. Mark Moyar maps the ongoing battle between "orthodox" and "revisionist" Vietnam War historians: the first group, those who depict Vietnam as a bad war that the United States should…

  10. Banana Wars and the Multiplicity of Conflicts in Commodity Chains

    Directory of Open Access Journals (Sweden)

    Kees Jansen

    2006-10-01

    Full Text Available – In the Shadows of State and Capital: The United Fruit Company, Popular Struggle, and Agrarian Restructuring in Ecuador, 1900-1995, by S. Striffler. Durham & London: Duke University Press, 2002. – Banana Wars: Power, Production, and History in the Americas, edited by S. Striffler and M. Moberg. Durham: Duke U.P., 2003. – Banana Wars: The Anatomy of a Trade Dispute, edited by T.E. Josling and T.G. Taylor. Oxon: CABI Publishing, 2003. – Smart Alliance: How a Global Corporation and Environmental Activists Transformed a Tarnished Brand, by J.G. Taylor and P.J. Scharlin. New Haven: Yale University Press, 2004. – Banana Wars: The Price of Free Trade: A Caribbean Perspective, by G. Myers. London: Zed, 2004. – The Banana Wars: United States Intervention in the Caribbean, 1898-1934, by L.D. Langley. Wilmington: Scholarly Resources Inc. Revised 2002, first published in 1983.

  11. Total war

    Directory of Open Access Journals (Sweden)

    Bratina Boris

    2007-01-01

    Full Text Available In principle, this paper presents critics of Freud's concept of death drive and deals with the consequences of its drawing in the theoretical plane. Namely, the death drive is, besides the original pleasure principle, imported into the selfmediation dialectic of subjectivity. By that, as if a scientific foundation and justification had been given to one of the central tendencies in Western European thought: to the idea of original opposition or eternal war. In our time, violence has entered widely into theoretical reality, which is best witnessed by Derida's thought. Nevertheless, the concept of death drive presents only one of the possible lines of the development of psychoanalysis, the line which is fully avoided in papers and praxis of one different psychoanalyst - very much used but not enough acknowledged - Wilhelm Reich. Reich, namely, succeeded in explanation of masochism problem (as one of the main motives for presenting of death drive by inversion of the pleasure principle, and such interpretation gave results in therapy while the concept of death drive had shown itself apsolutely fruitless (unproductive in that field. In that sense, one could say that it is the matter of different ethoi.

  12. Poland's Engagement in the Global War on Terrorism: Strategic Level Political and Military Implications

    National Research Council Canada - National Science Library

    Adamczak, Janusz

    2007-01-01

    The events of September 11 started a new age in the history of the modern world. The attack on the World Trade Center broke a moral barrier in the way war was waged by worldwide terrorist organizations...

  13. Virtual water trade and bilateral conflicts

    Science.gov (United States)

    De Angelis, Enrico; Metulini, Rodolfo; Bove, Vincenzo; Riccaboni, Massimo

    2017-12-01

    In light of growing water scarcity, virtual water, or the water embedded in key water-intensive commodities, has been an active area of debate among practitioners and academics alike. As of yet, however, there is no consensus on whether water scarcity affects conflict behavior and we still lack empirical research intending to account for the role of virtual water in affecting the odds of militarized disputes between states. Using quantitative methods and data on virtual water trade, we find that bilateral and multilateral trade openness reduce the probability of war between any given pair of countries, which is consistent with the strategic role of this important commodity and the opportunity cost associated with the loss of trade gains. We also find that the substantive effect of virtual water trade is comparable to that of oil and gas, the archetypal natural resources, in determining interstate conflicts' probability.

  14. Fish trade, food and income security: an overview of the constraints and barriers faced by small-scale fishers, farmers and traders in the Lower Mekong Basin.

    NARCIS (Netherlands)

    Bush, S.R.; Nguyet Minh, Le

    2006-01-01

    As riparian governments advoate freer trade and develop physical infrastructure, trade networks, including for aquatic living animals, trade will likely become more efficient through largers investment by fewer traders. Whether this trade efficiency and economic growth are accompanied with a

  15. Fish trade, food and income security: an overview of the constraints and barriers faced by small-scale fishers, farmers and traders in the Lower Mekong Basin

    NARCIS (Netherlands)

    Bush, S.R.; Nguyet, Le M.

    2005-01-01

    As riparian governments advoate freer trade and develop physical infrastructure, trade networks, including for aquatic living animals, trade will likely become more efficient through largers investment by fewer traders. Whether this trade efficiency and economic growth are accompanied with a

  16. Trading stages

    DEFF Research Database (Denmark)

    Steiner, Uli; Tuljapurkar, Shripad; Coulson, Tim

    2012-01-01

    Interest in stage-and age structured models has recently increased because they can describe quantitative traits such as size that are left out of age-only demography. Available methods for the analysis of effects of vital rates on lifespan in stage-structured models have not been widely applied ...... examples. Much of our approach relies on trading of time and mortality risk in one stage for time and risk in others. Our approach contributes to the new framework of the study of age- and stage-structured biodemography....

  17. The Experience of the Design of Thematic Network Resource, Concerning the History of the Public Assistance in the Extreme Conditions of Wars of the Early XX Century

    Directory of Open Access Journals (Sweden)

    Tatiana A. Kattсina

    2014-09-01

    Full Text Available The paper is focused on the content of website on the history of the social welfare to the victims of the Russian-Japan (1904-1905 and the First World (1914-1918 Wars. The technique of database creation, necessary for the study of public organizations, which activity was aimed at the rendering help to the victims of war is presented. In the course of the specific historic research, the creation of thematic database and website was the secondary, convenient form of work with information, mainly the archive one. The Eastern Siberia was selected as a base of the main research. The set of materials, posted on the website is aimed at the research of the influence of large-scale military conflicts on the concept, forms and activities of social welfare to the victims of war; widens the information base of historic research and educational process; enables to integrate the material across Russia and form the all-Russian database in the longer term.

  18. Anonymous electronic trading versus floor trading

    OpenAIRE

    Franke, Günter; Hess, Dieter

    1995-01-01

    This paper compares the attractiveness of floor trading and anonymous electronic trading systems. It is argued that in times of low information intensity the insight into the order book of the electronic trading system provides more valuable information than floor trading, but in times of high information intensity the reverse is true. Thus, the electronic system's market share in trading activity should decline in times of high information intensity. This hypothesis is tested by data on BUND...

  19. Global Trade and Indian Politics

    DEFF Research Database (Denmark)

    Lubinski, Christina

    2015-01-01

    -British Western partners, which could support their struggle for industrial self-reliance. This particular alignment of interests facilitated cooperation and shows that the so-called European experience is more diverse than research has shown so far. The analysis highlights global trading networks beyond...

  20. Masculinity, War and Violence

    DEFF Research Database (Denmark)

    Christensen, Ann-Dorte; Rasmussen, Palle Damkjær

    Addressing the relationship between masculinity, war and violence, the book covers these themes broadly and across disciplines. The ten contributions encompass four recurring themes: violent masculinities and how contemporary societies and regimes cope with them; popular written and visual fiction...... about war and masculine rationalties; gender relations in social movements of rebellion and national transformation; and masculinity in civil society under conditions of war and post-war....

  1. Mathematicians at War

    CERN Document Server

    Mazliak, Laurent

    2009-01-01

    Italian mathematician Volterra struggled to carry Italy into the World War I in May 1915 and then developed a frenetic activity to support the war effort. This activity found an adequate echo what did his French colleagues Borel, Hadamard and Picard. This book proposes the transcription of the correspondence they exchanged during the war

  2. The American Home Front. Revolutionary War, Civil War, World War 1, World War 2

    Science.gov (United States)

    1983-01-01

    economic, and politica ! institutions. And like independence, war shaped the "course taken by the new nation as it faced its future. The consequences...Cruden, The War That Never Ended: The American Ci’,il War (Englewood Cliffs: Prentice-Hall, 1973), p. 176. 139 190 NOTES. CHAPTER 2 15. Thonas Weber . The

  3. Early Korean War Coverage.

    Science.gov (United States)

    Lee, Raymond S. H.

    1978-01-01

    Examines the themes of the war front news reported in certain South Korean and United States newspapers during the first 16 days of the Korean War; attempts to determine significant differences in the themes of war front news between the Korean and United States papers. (Author/GT)

  4. Trade in mineral resources

    OpenAIRE

    Graham A. Davis

    2010-01-01

    This paper provides a review of current thinking on the economics of international trade in mineral resources. I first define what is meant by trade in mineral resources. I then discuss patterns of trade in mineral resources. The paper then moves on to the five topics requested by the World Trade Organization: theoretical and empirical literature on international trade in minerals; trade impacts of mineral abundance and the resource curse; the political economy of mineral trade in resource-ab...

  5. Wildlife trade and global disease emergence.

    Science.gov (United States)

    Karesh, William B; Cook, Robert A; Bennett, Elizabeth L; Newcomb, James

    2005-07-01

    The global trade in wildlife provides disease transmission mechanisms that not only cause human disease outbreaks but also threaten livestock, international trade, rural livelihoods, native wildlife populations, and the health of ecosystems. Outbreaks resulting from wildlife trade have caused hundreds of billions of dollars of economic damage globally. Rather than attempting to eradicate pathogens or the wild species that may harbor them, a practical approach would include decreasing the contact rate among species, including humans, at the interface created by the wildlife trade. Since wildlife marketing functions as a system of scale-free networks with major hubs, these points provide control opportunities to maximize the effects of regulatory efforts.

  6. U.S. Unmanned Aerial Vehicles (UAVs) and Network Centric Warfare (NCW): Impacts on Combat Aviation Tactics from Gulf War I Through 2007 Iraq

    Science.gov (United States)

    2008-03-01

    Employing Sealant Foam TMD/CMD S-HAE (Find/Attack) P-HAE (Find) C-MAE (Attack) SAR/MTI Radar, Air-to-Air Tracking Radar, EO/IR Imaging Fire Control...moisture such as rain, snow, ice, frost, or fog and the crosswind limitations for takeoff and landing are 17 knots. The assessment of the operational...technological advancements and growth in capabilities, UAVs are becoming indispensable to commanders in lifting or reducing the fog of war. All

  7. Educating for Peace: The Role and Impact of International Organisations in Interwar and Post-War Danish School Experiments, 1918–1975

    Directory of Open Access Journals (Sweden)

    Karen Egedal Andreasen

    2015-11-01

    Full Text Available In the aftermath of the two world wars, strong international networks and organisations manifested themselves with promotion of peace through education on their agenda. Danish pedagogical experiments and experimental schools were strongly influenced by these trends and played a role in subsequent school practices and policies. Drawing on the notions of “the transnational” and “trading spaces” as well as the theoretical concepts of transfer, translation, and transformation, this article addresses the following research question: How were international ideas, knowledge and practice of promoting peace through education transferred, translated, and transformed in Danish school experiments in interwar and post-war scenarios? In exploring this question, the article uses transnational and Danish archival sources as well as journals and reports linked to the Danish progressive education movement. Thus, the article contributes to our understanding of the entanglements of educational ideas and to how trends of internationalisation and globalisation work.

  8. The war veteran identity

    Directory of Open Access Journals (Sweden)

    Marković-Savić Olivera S.

    2015-01-01

    Full Text Available The paper discusses how war veterans perceive themselves and how they answer the question 'Who am I?'. War veterans face many challenges in the process of re-socialization from a state of war and war traumatization to a peacetime society. There are several reasons why their re-socialization is a slow process: the first one is that a war engagement is in itself a highly stressful situation which carries traumas of different degrees, the other reason is the changed system of values in relation to war engagement. Namely, at the time they went to war, they had a strong social support, but at the time of their return and today this support is lost to the point of judgment. And the third reason which limits their re-socialization is the situation of social transition they found on their return from war, which specifically means that a large percentage of the population in general, and thus the war veterans after returning from the war, lost their jobs, creating a large social group of 'transition losers'. Such a condition often generates an identity crisis. This set of socio-cultural circumstances together with the ontological insecurity carried by war trauma generate an identity crisis, which is manifested among the respondents in nihilistic answers when responding to questions about their own personality. Studying the identity of war veterans, it was found that a strong attachment to the veteran identity is dominant. In fact, this paper discusses the different ways in which this attachment is refracted in the personality and identity of subjects, from negative attitudes to the pride in belonging to a group of war veterans and personal fulfillment in the activism in associations of war participants.

  9. The War on Drugs - America's Other War

    National Research Council Canada - National Science Library

    Bruske, Jr, James S

    2008-01-01

    The United States Coast Guard, with the assistance of the United States Navy, has been engaged in interdicting drugs in the maritime environment since Richard Nixon declared the War on Drugs thirty-seven years ago...

  10. Captagon: use and trade in the Middle East.

    Science.gov (United States)

    Al-Imam, Ahmed; Santacroce, Rita; Roman-Urrestarazu, Andres; Chilcott, Robert; Bersani, Giuseppe; Martinotti, Giovanni; Corazza, Ornella

    2017-05-01

    Fenetheylline, a psychostimulant drug, often branded as Captagon, is a combination of amphetamine and theophylline. Since the cessation of its legal production in 1986, counterfeited products have been produced illicitly in south-east Europe and far-east Asia. Its profitable trade has been linked to terrorist organizations, including Islamic State of Iraq and the Levant. This study aims to reach up-to-date data, concerning the Captagon e-commerce and use in the Middle East. A multi-staged and multi-lingual literature search was carried out. A list of prespecified keywords was applied across medical and paramedical databases, web and Dark web, search engines, social communication media, electronic commerce websites, media networks, and the Global Public Health Intelligence Network database. The use of Captagon as a stimulant in terrorist settings has been marginally covered in the literature. Data can widely be retrieved from Google and AOL search engines, YouTube, and Amazon e-commerce websites, and to a lesser extent from Alibaba and eBay. On the contrary, Middle Eastern e-commerce websites yielded almost no results. Interestingly, the Dark web generated original data for Captagon e-commerce in the Middle East. Further investigations are needed on the role that psychoactive drugs play in terrorist attacks and civil war zones. Unless a comprehensive methodological strategy, inclusive of unconventional methods of research, is implemented, it will not be feasible to face such a threat to humanity. Copyright © 2016 John Wiley & Sons, Ltd.

  11. Commemoration of a cold war

    DEFF Research Database (Denmark)

    Farbøl, Rosanna

    2015-01-01

    and heritage sites as case studies, this article sheds new light on the politics of history involved in Cold War commemoration. It suggests that the Cold War is commemorated as a war, yet this war memory is of a particular kind: it is a war memory without victims.......This article brings together the fields of Cold War studies and memory studies. In Denmark, a remarkable institutionalisation of Cold War memory has taken place in the midst of a heated ideological battle over the past and whether to remember the Cold War as a ‘war’. Using Danish Cold War museums...

  12. Changes in biodiversity and trade-offs among ecosystem services, stakeholders, and components of well-being: the contribution of the International Long-Term Ecological Research network (ILTER to Programme on Ecosystem Change and Society (PECS

    Directory of Open Access Journals (Sweden)

    Manuel Maass

    2016-09-01

    Full Text Available The International Long-Term Ecological Research (ILTER network comprises > 600 scientific groups conducting site-based research within 40 countries. Its mission includes improving the understanding of global ecosystems and informs solutions to current and future environmental problems at the global scales. The ILTER network covers a wide range of social-ecological conditions and is aligned with the Programme on Ecosystem Change and Society (PECS goals and approach. Our aim is to examine and develop the conceptual basis for proposed collaboration between ILTER and PECS. We describe how a coordinated effort of several contrasting LTER site-based research groups contributes to the understanding of how policies and technologies drive either toward or away from the sustainable delivery of ecosystem services. This effort is based on three tenets: transdisciplinary research; cross-scale interactions and subsequent dynamics; and an ecological stewardship orientation. The overarching goal is to design management practices taking into account trade-offs between using and conserving ecosystems toward more sustainable solutions. To that end, we propose a conceptual approach linking ecosystem integrity, ecosystem services, and stakeholder well-being, and as a way to analyze trade-offs among ecosystem services inherent in diverse management options. We also outline our methodological approach that includes: (i monitoring and synthesis activities following spatial and temporal trends and changes on each site and by documenting cross-scale interactions; (ii developing analytical tools for integration; (iii promoting trans-site comparison; and (iv developing conceptual tools to design adequate policies and management interventions to deal with trade-offs. Finally, we highlight the heterogeneity in the social-ecological setting encountered in a subset of 15 ILTER sites. These study cases are diverse enough to provide a broad cross-section of contrasting

  13. Entropy of international trades

    Science.gov (United States)

    Oh, Chang-Young; Lee, D.-S.

    2017-05-01

    The organization of international trades is highly complex under the collective efforts towards economic profits of participating countries given inhomogeneous resources for production. Considering the trade flux as the probability of exporting a product from a country to another, we evaluate the entropy of the world trades in the period 1950-2000. The trade entropy has increased with time, and we show that it is mainly due to the extension of trade partnership. For a given number of trade partners, the mean trade entropy is about 60% of the maximum possible entropy, independent of time, which can be regarded as a characteristic of the trade fluxes' heterogeneity and is shown to be derived from the scaling and functional behaviors of the universal trade-flux distribution. The correlation and time evolution of the individual countries' gross-domestic products and the number of trade partners show that most countries achieved their economic growth partly by extending their trade relationship.

  14. The War Transformed Love

    OpenAIRE

    Perrot, Michelle

    2015-01-01

    Paris Diderot University - Paris 7 “The war transformed love”, wrote Blaise Cendrars, who himself lived through this dramatic experience. But what else? How did men and women experience the Great War, not only in their affective, romantic and sexual relationships, but more generally in everything forging their relationships: family life, intimacy, the public and the private spheres, work, writing, images, the body and the soul? A poilu's postcard, 1916 The war was first the triumph of the or...

  15. The structural characteristics of world trade and the merchandise exports of Serbia

    Directory of Open Access Journals (Sweden)

    Kovačević Radovan

    2009-01-01

    Full Text Available This paper analyses the world merchandise trade structure and the structure of Serbian merchandise exports. The analysis shows that the prominent characteristic of post-World War II world trade is more dynamic growth in the volume of manufactured goods as compared to agricultural goods. Due to the lessening share of agricultural products world merchandise trade has decreased and rapid industrialization has been fostered in developing countries. An increased share for developing countries followed the developed countries' decreasing share in world manufacturing trade. The developing countries' increased share was strongest in telecom and office equipment exports. These sectors are characterized by production fragmentation, which is being realized by transnational companies. Serbia, like the other South East European countries, has not yet managed to significantly integrate into international production networks. Serbia's most important exports are manufactured products with a low level of added value . In addition, Serbia still has a high share of primary products in its exports. A higher share of exports of goods and services in the gross domestic products (GDP cannot be achieved without increasing imports of new technologies and equipment, i.e. without a higher investment share of the GDP. The main conclusion of this article is that the creation of a favorable investment climate and an increase in Serbia's international credit rating are the preconditions for stronger foreign direct investment (FDI, which would be the main channel for restructuring in the real sector. Creation of new small and medium enterprises (SMEs through greenfield investment and their integration into the international production networks is the starting point for the restructuring of Serbian industrial production and merchandise export, i.e. the way of increasing the share of merchandise exports in the GDP.

  16. Legalisation of Civil Wars

    DEFF Research Database (Denmark)

    Buhl, Kenneth Øhlenschlæger

    2009-01-01

    This article is concerned with the legal challenges of regulating civil wars in international humanitarian law. Civil war is not a term used in international law; it falls however, withing the context of the legal term 'armed conflicts not of an international character', although the shorter 'non......-international armed conflict' is used here. Civil wars are usually limited to the territory of a state. Considering that international law is generally concerned with the legal relations between states – being a legal system based on the system of states with states as its subjects – the main question is how civil...... wars as internal conflicts have become subject to international humanitarian law....

  17. War Powers Resolution: Presidential Compliance

    National Research Council Canada - National Science Library

    Grimmett, Richard F

    2009-01-01

    .... One issue concerns the division of war powers between the President and Congress, whether the use of armed forces falls within the purview of the congressional power to declare war and the War Powers Resolution (WPR...

  18. The Just War or Just a War? A Proposal for Ethical Joint Doctrine of War

    National Research Council Canada - National Science Library

    Schultz, Sarah J

    2005-01-01

    .... Combat now spans both war and "not war" in the new "military operation other than war", and the process of the military government has been completely replaced by the new "civil administration...

  19. Feeding humanity through global food trade

    Science.gov (United States)

    D'Odorico, Paolo; Carr, Joel A.; Laio, Francesco; Ridolfi, Luca; Vandoni, Stefano

    2014-09-01

    The recent intensification of international trade has led to a globalization of food commodities and to an increased disconnection between human populations and the land and water resources that support them through crop and livestock production. Several countries are not self-sufficient and depend on imports from other regions. Despite the recognized importance of the role of trade in global and regional food security, the societal reliance on domestic production and international trade remains poorly quantified. Here we investigate the global patterns of food trade and evaluate the dependency of food security on imports. We investigate the relationship existing between the trade of food calories and the virtual transfer of water used for their production. We show how the amount of food calories traded in the international market has more than doubled between 1986 and 2009, while the number of links in the trade network has increased by more than 50%. Likewise, global food production has increased by more than 50% in the same period, providing an amount of food that is overall sufficient to support the global population at a rate of 2700-3000 kcal per person per day. About 23% of the food produced for human consumption is traded internationally. The water use efficiency of food trade (i.e., food calories produced per unit volume of water used) has declined in the last few decades. The water use efficiency of food production overall increases with the countries' affluence; this trend is likely due to the use of more advanced technology.

  20. Free trade or just trade? The World Trade Organisation, human ...

    African Journals Online (AJOL)

    The author assesses these claims from a human rights perspective and explores the relationship between trade, human rights and development. The article sketches the history and functions of the WTO, discusses the linkages between trade liberalisation, human rights and development, and assesses the human rights ...

  1. Children and War.

    Science.gov (United States)

    Engel, Mary

    1984-01-01

    War is a stressful social condition that can be considered a form of child abuse. The holocaust experience, Vietnam, and World War II have all had significant effects on children's emotions and behavior. Problems that arise from these traumatic events are explored. (DF)

  2. America's Holy War

    National Research Council Canada - National Science Library

    Parker, John

    2006-01-01

    .... He also contends that the Global War On Terrorism (GWOT) is intrinsically a strategy to combat a "tactic" used by Islamic Extremists versus focusing on the true enemy, the Muslim people who support this Holy War in the name of Islam...

  3. War and public health

    National Research Council Canada - National Science Library

    Levy, Barry S; Sidel, Victor W

    2008-01-01

    ... and Prevention, the International Rescue Committee, and the International Physicians for the Prevention of Nuclear War, can reduce the impact of war and contribute to its prevention. The participation of respected and trustworthy intermediaries and the willingness of parties to communicate with each other are two key elements in preventing...

  4. Fighting the Drug War.

    Science.gov (United States)

    The Journal of State Government, 1990

    1990-01-01

    All nine articles in this periodical issue focus on the theme of the war against illegal drug use, approaching the topic from a variety of perspectives. The articles are: "The Drug War: Meeting the Challenge" (Stanley E. Morris); "Ways to Fight Drug Abuse" (Bruce A. Feldman); "Treatment Key to Fighting Drugs" (Stan…

  5. Paying for Hitler's War

    DEFF Research Database (Denmark)

    Lund, Joachim

    2017-01-01

    Book review of: Jonas Scherner & Eugene N. White (eds.), Paying for Hitler's War: The Consequenses of Nazi Hegemony for Europe (NY: Cambridge University Press, 2016)......Book review of: Jonas Scherner & Eugene N. White (eds.), Paying for Hitler's War: The Consequenses of Nazi Hegemony for Europe (NY: Cambridge University Press, 2016)...

  6. Terrorism, war, and peace

    Directory of Open Access Journals (Sweden)

    JÜRGEN STOLZENBER

    2006-01-01

    Full Text Available The article tries first to analyse the different use of the concept of war made by George W. Bush with reference to the terrorist attack of 09/11 and to the invasion of Afghanistan. In order to do this, the paper will start from an analysis of the concept of terrorism itself and from the question whether terrorist acts can be designed as acts of war. It turns secondly to the more philosophical aspects of the question of terrorism, war and peace, starting from questions about the applicability of just war theories to the so called “war on terrorism” and discussing finally what is called “The Kantian Project”, that is the Kantian arguments for the establishment of “eternal peace” among the states of the world.

  7. Women and War

    Directory of Open Access Journals (Sweden)

    Redazione Camerablu

    2012-05-01

    Full Text Available In the traditional representation of war the protagonist is always the man, the soldier, portrayed in his full virility, strength and justified aggressiveness. In every public discourse on war women are presented as the personification of something to be protected and even the country itself, the homeland, that is in danger of being invaded by the enemy. However this stereotype is far from portraying the full range of women’s activity in war. In many cases throughout history, from the mythical Antigone to the forgotten heroism of resistance of women against Nazi-German occupation in the Second World War, women have taken action both to save human lives and to preserve the values of their communities that war threatens to destroy. Avoiding an essentialist and reductive interpretation that identifies tout court women with peace, this issue explores women’s wartime experiences.

  8. Expanding Trade within Africa: The Impact of Trade Facilitation

    OpenAIRE

    Njinkeu, Dominique; S. Wilson, John; Powo Fosso, Bruno

    2008-01-01

    This paper examines the impact of trade facilitation on intra-African trade. The authors examine the role of trade facilitation reforms, such as increased port efficiency, improved customs, and regulatory environments, and upgrading services infrastructure on trade between African countries. They also consider how regional trade agreements relate to intra-African trade flows. Using trade d...

  9. Analysis of the characteristics of the global virtual water trade network using degree and eigenvector centrality, with a focus on food and feed crops

    National Research Council Canada - National Science Library

    Lee, Sang-Hyun; Mohtar, Rabi H; Choi, Jin-Yong; Yoo, Seung-Hwan

    2016-01-01

    ..., and influential countries, using degree and eigenvector centrality during the period 2006-2010. The degree centrality was used to measure the connectivity, and eigenvector centrality was used to measure the influence on the entire GVWT network...

  10. From Idealism to Realism? EU Preferential Trade Agreement Policy

    Directory of Open Access Journals (Sweden)

    Maria Garcia

    2013-10-01

    Full Text Available This article examines how the EU’s ‘conflicted power’ in trade has played out within its preferential trade agreement (PTA strategies with third parties. It does this by providing an overview of how approaches to the EU’s external trade policies have evolved over time, especially since the end of the Cold War. Tracing changes in discourse in the EU’s consolidated trade policy demonstrates how the policy objectives have evolved from what could be characterised as a soft and even normative power to a much more realist one, attempting to safeguard its position in the international economic order. Notwithstanding these changes, explained by a combination of international context and ideational preferences, an underlying overall continuity has remained in terms of the main economic interests to be realised through trade policy, which presents a portrait of the EU as a rational and realist (if sometimes conflicted actor in the global economy.

  11. Bridging the divide: global governance of trade and health.

    Science.gov (United States)

    Lee, Kelley; Sridhar, Devi; Patel, Mayur

    2009-01-31

    The main institutions responsible for governing international trade and health-the World Trade Organization (WTO), which replaced the General Agreement on Tariffs and Trade (GATT) in 1995, and WHO-were established after World War 2. For many decades the two institutions operated in isolation, with little cooperation between them. The growth and expansion of world trade over the past half century amid economic globalisation, and the increased importance of health issues to the functioning of a more interconnected world, brings the two domains closer together on a broad range of issues. Foremost is the capacity of each to govern their respective domains, and their ability to cooperate in tackling issues that lie at the intersection of trade and health. This paper discusses how the governance of these two areas relate to one another, and how well existing institutions work together.

  12. CNNLab: a Novel Parallel Framework for Neural Networks using GPU and FPGA-a Practical Study with Trade-off Analysis

    OpenAIRE

    Zhu, Maohua; Liu, Liu; Wang, Chao; Xie, Yuan

    2016-01-01

    Designing and implementing efficient, provably correct parallel neural network processing is challenging. Existing high-level parallel abstractions like MapReduce are insufficiently expressive while low-level tools like MPI and Pthreads leave ML experts repeatedly solving the same design challenges. However, the diversity and large-scale data size have posed a significant challenge to construct a flexible and high-performance implementation of deep learning neural networks. To improve the per...

  13. Comparison of the KSC-ER Cloud-to-Ground Lightning Surveillance System (CGLSS) and the U.S. National Lightning Detection Network(TradeMark)(NLDN)

    Science.gov (United States)

    Ward, Jennifer G.; Cummins, Kenneth L.; Krider, E. Philip

    2007-01-01

    The NASA Kennedy Space Center (KSC) and Air Force Eastern Range (ER) use data from two cloud-to-ground lightning detection networks, CGLSS and NLDN, during ground and launch operations at the KSC-ER. For these applications, it is very important to understand the location accuracy and detection efficiency of each network near the KSC-ER. If a cloud-to-ground (CG) lightning strike is missed or mis-located by even a small amount, the result could have significant safety implications, require expensive retests, or create unnecessary delays or scrubs in launches. Therefore, it is important to understand the performance of each lightning detection system in considerable detail. To evaluate recent upgrades in the CGLSS sensors in 2000 and the entire NLDN in 2002- 2003, we have compared. measurements provided by these independent networks in the summers of 2005 and 2006. Our analyses have focused on the fraction of first strokes reported individually and in-common by each network (flash detection efficiency), the spatial separation between the strike points reported by both networks (relative location accuracy), and the values of the estimated peak current, Ip, reported by each network. The results within 100 km of the KSC-ER show that the networks produce very similar values of Ip (except for a small scaling difference) and that the relative location accuracy is consistent with model estimates that give median values of 200-300m for the CGLSS and 600-700m for the NLDN in the region of the KSC-ER. Because of differences in the network geometries and sensor gains, the NLDN does not report 10-20% of the flashes that have a low Ip (2 kA =0 kA).

  14. U.S. Trade Policy: Competing in a Global Economy [and] Teacher's Resource Book. Revised. Choices for the 21st Century.

    Science.gov (United States)

    Brown Univ., Providence, RI. Thomas J. Watson, Jr. Inst. for International Studies.

    This unit weighs the choices and tradeoffs involved in the interdependence of trade and the goals of U.S. trade policy. The first section of the first booklet is designed to introduce students to how the global economic system developed in the decades after World War II. Part 2 illustrates the impact of trade policy on the lives of four Americans,…

  15. Redirecting International Trade

    DEFF Research Database (Denmark)

    Kokko, Ari; Söderlund, Bengt; Tingvall, Patrik Gustavsson

    2014-01-01

    The global financial crisis has contributed to the redirection of trade towards new markets outside the OECD area, where both demand patterns and the institutional environment differ from those in the OECD. This study provides an empirical examination of the consequences of this shift, based...... on Swedish firm-level trade data. Results suggest that weak institutions hamper trade and reduce the length of trade relations, especially for small firms. Trade in industries that are characterized by a high frequency of trade conflicts and where transactions require extensive relationship......-specific investments are particularly difficult to redirect towards markets with weak institutions....

  16. Redirecting International Trade

    DEFF Research Database (Denmark)

    Kokko, Ari; Söderlund, Bengt; Tingvall, Patrik Gustavsson

    The global financial crisis has accelerated the redirection of trade towards new markets, outside the OECD area, where both demand patterns and the institutional environment differ from those in the OECD. This study provides an empirical examination of the consequences of this shift. Results...... suggest that weak institutions hamper trade and reduces the length of trade relations, especially for small firms. Furthermore, trade in industries that are characterized by a high degree of trade conflicts and that requires extensive relationship specific investments for trade to occur are comparatively...... difficult to redirect towards markets with weak institutions....

  17. Reconfiguring trade mark law

    DEFF Research Database (Denmark)

    Elsmore, Matthew James

    2013-01-01

    First, this article argues that trade mark law should be approached in a supplementary way, called reconfiguration. Second, the article investigates such a reconfiguration of trade mark law by exploring the interplay of trade marks and service transactions in the Single Market, in the cross......-border setting, with a particular focus on small business and consumers. The article's overall message is to call for a rethink of received wisdom suggesting that trade marks are effective trade-enabling devices. The case is made for reassessing how we think about European trade mark law....

  18. Establishing a 1991 Veterans Research Network to Improve Characterization of Gulf War Illness and Provide a National Resource for Veterans and Investigators

    Science.gov (United States)

    2016-11-01

    data will be used to optimize a GWI case definition, based on current symptoms, and to provide insights concerning rates of other medical conditions... questionnaires by mail or online, and to participate in the 1991 Veterans Research and Information Network (91VetNet), a national research and information...be used to update and optimize a GWI case definition, based on veterans’ current health status, and to provide important insights concerning rates of

  19. Somatic hypotheses of war syndromes

    NARCIS (Netherlands)

    Soetekouw, P.M.M.B.; Vries, M. de; Bergen, L.F.J.M. van; Galama, J.M.D.; Keyser, A.J.M.; Bleijenberg, G.; Meer, J.W.M. van der

    2000-01-01

    Since the end of the American Civil War, unexplained symptoms in military personnel arising after a war or peace mission have frequently been described. The pattern of symptoms is highly similar for all of the various war syndromes although the conditions of each war or peace mission are widely

  20. 121 | Page WORLD TRADE ORGANISATION (WTO): TRADE ...

    African Journals Online (AJOL)

    Fr. Ikenga

    of the current rules of WTO that reinforce the disadvantages faced by developing economies. This essay deals with these unfair trade rules and disadvantages inherent in the World Trade Organization (WTO) system by .... also expand their exports given the comparative advantage they have in respect of those national ...

  1. Aeschylus and War

    DEFF Research Database (Denmark)

    This volume brings together a group of interdisciplinary experts who demonstrate that Aeschylus’ Seven Against Thebes is a text of continuing relevance and value for exploring ancient, contemporary and comparative issues of war and its attendant trauma. The volume features contributions from...... an international cast of experts, as well as a conversation with a retired U.S. Army Lt. Col., giving her perspectives on the blending of reality and fiction in Aeschylus’ war tragedies and on the potential of Greek tragedy to speak to contemporary veterans. This book is a fascinating resource for anyone...... interested in Aeschylus, Greek tragedy and its reception, and war literature....

  2. Terrorism, war, and peace

    OpenAIRE

    JÜRGEN STOLZENBER

    2006-01-01

    The article tries first to analyse the different use of the concept of war made by George W. Bush with reference to the terrorist attack of 09/11 and to the invasion of Afghanistan. In order to do this, the paper will start from an analysis of the concept of terrorism itself and from the question whether terrorist acts can be designed as acts of war. It turns secondly to the more philosophical aspects of the question of terrorism, war and peace, starting from questions about the applicability...

  3. Political Bias and War

    OpenAIRE

    Jackson, Matthew O.; Morelli, Massimo

    2006-01-01

    We examine how countries' incentives to go to war depend on the "political bias" of their pivotal decision makers. This bias is measured by a decision maker’s risk/ reward ratio from a war compared to that of the country at large. If there is no political bias, then there are mutually acceptable transfers from one country to the other that will avoid a war in the presence of commitment or enforceability of peace treaties. There are cases with a strong enough bias on the part of one or both co...

  4. Banana Wars and the Multiplicity of conflicts in Commodity Chains

    OpenAIRE

    Kees Jansen

    2006-01-01

    – In the Shadows of State and Capital: The United Fruit Company, Popular Struggle, and Agrarian Restructuring in Ecuador, 1900-1995, by S. Striffler. Durham & London: Duke University Press, 2002. – Banana Wars: Power, Production, and History in the Americas, edited by S. Striffler and M. Moberg. Durham: Duke U.P., 2003. – Banana Wars: The Anatomy of a Trade Dispute, edited by T.E. Josling and T.G. Taylor. Oxon: CABI Publishing, 2003. – Smart Alliance: How a Global Corporation and Environm...

  5. Trade Facilitation in Ethiopia:

    African Journals Online (AJOL)

    Tilahun_EK

    Italy. LL.M (Business Law) Addis Ababa .... section identifies the main trade facilitation challenges in Ethiopia that are mostly within customs law. ... Various international and regional organizations define trade facilitation according to their mandate ...

  6. Trade and insecure resources

    National Research Council Canada - National Science Library

    Garfinkel, Michelle R; Skaperdas, Stergios; Syropoulos, Constantinos

    2015-01-01

    .... Depending on world prices, free trade can intensify arming to such an extent that the additional security costs it brings swamp the traditional gains from trade and thus render autarky more desirable...

  7. Trade Agreements PTI

    Data.gov (United States)

    Department of Homeland Security — The objective of the Trade Agreements PTI is to advance CBP’s mission by working with internal and external stakeholders to facilitate legitimate trade and address...

  8. Trade in goods

    DEFF Research Database (Denmark)

    Sørensen, Karsten Engsig

    2006-01-01

    An analysis of the rules governing trade in goods under the GATT agreement and the Agreement on Safeguards......An analysis of the rules governing trade in goods under the GATT agreement and the Agreement on Safeguards...

  9. [Falsified medicines in parallel trade].

    Science.gov (United States)

    Muckenfuß, Heide

    2017-11-01

    The number of falsified medicines on the German market has distinctly increased over the past few years. In particular, stolen pharmaceutical products, a form of falsified medicines, have increasingly been introduced into the legal supply chain via parallel trading. The reasons why parallel trading serves as a gateway for falsified medicines are most likely the complex supply chains and routes of transport. It is hardly possible for national authorities to trace the history of a medicinal product that was bought and sold by several intermediaries in different EU member states. In addition, the heterogeneous outward appearance of imported and relabelled pharmaceutical products facilitates the introduction of illegal products onto the market. Official batch release at the Paul-Ehrlich-Institut offers the possibility of checking some aspects that might provide an indication of a falsified medicine. In some circumstances, this may allow the identification of falsified medicines before they come onto the German market. However, this control is only possible for biomedicinal products that have not received a waiver regarding official batch release. For improved control of parallel trade, better networking among the EU member states would be beneficial. European-wide regulations, e. g., for disclosure of the complete supply chain, would help to minimise the risks of parallel trading and hinder the marketing of falsified medicines.

  10. Ada (Trade Name) Foundation Technology. Volume 9. Software Requirements for WIS (WWMCCS (World Wide Military Command and Control System) Information System) Network Protocol Prototypes.

    Science.gov (United States)

    1986-12-01

    Communications, January 1977. [ GAVI 83] Gavish, B., and S. L. Hantler, "An Algorithm for Optimal Route Selection in SNA Networks," IEEE Transactons on...can be found in [SCHW 80.1 Two works that deal with non-bifurcated flows are [COUR 8 11 and [ GAVI 83]. 4.3 Description of the Algorithm Problem 4.3.1

  11. The Vietnam War

    DEFF Research Database (Denmark)

    Godbolt, James; Larsen, Chris Holmsted; Rasmussen, Søren Hein

    2009-01-01

    This article investigates the role of the Vietnam War in Danish and Norwegian politics. We argue that Danish and Norwegian membership in NATO and an unstable parliamentary situation may explain why these countries, unlike Sweden, did not take on the lead in the international protest against the war...... in Denmark, Sweden and Norway, and in all three countries powerful protest movements emerged that were remarkably similar. The Vietnam War strengthened the left in general and promoted a leftist politics of solidarity that influenced Swedish, Danish and Norwegian foreign policy-making of the 1970s........ Non-socialistic coalitions came to power in Norway and Denmark in the latter half of the 1960s which to an extent explains why the social democratic parties in both countries became more critical of the US. By the end of the 1960s, foreign policy as well as public attitudes towards the war converged...

  12. The war hero

    Directory of Open Access Journals (Sweden)

    Raffaele Menarini

    2014-06-01

    Full Text Available The article explains the phenomenon of war through the transpersonal perspective as an existential way which is independent from subject's intentionality. Therefore war not as a pondered product but as a reproduction of an unthinkable aggressiveness. Within the transpersonal dynamic, those that Bion defined 'basic assumptions' prevail: dependency, attack-escape and pairing. Bion finds in the myth of Palinuro the typical pattern of destructiveness that prevents the birth of the thinkable. Menarini continues Bion's speculation working on the myth of hero Achilles as an archetypal which founds imagery of war and on the figure of Elena as a motor for the destructive act. In fact Elena is considered as a simulacrum, an object that, through the appearance, gives meaning to what would not make sense in absence of it, that is the transpersonal destructiveness. Like Elena every war has its simulacrum, such as the Washington Mall, and history is full of them.

  13. The Canons of War

    National Research Council Canada - National Science Library

    Daniel J. Freeman

    2007-01-01

    .... This Note draws upon the complete set of judicial opinions assessing authorizations for the use of military force in order to propose context-specific canons for interpreting war powers statutes...

  14. Trade, development and sustainability

    DEFF Research Database (Denmark)

    Røpke, Inge

    1994-01-01

    Mainstream economic theory argues that trade, and especially free trade, is beneficial to everyone involved. This fundamental idea ? which has the character of a dogma ? still plays an important role in international discussions on trade issues, notably in relation to development and environment....

  15. Banking and Trading

    NARCIS (Netherlands)

    Boot, A.W.A.; Ratnovski, L.

    2016-01-01

    We study the interaction between relationship banking and short-term arm’s length activities of banks, called trading. We show that a bank can use the franchise value of its relationships to expand the scale of trading, but may allocate too much capital to trading ex post , compromising its ability

  16. Individual Attitudes Towards Trade

    DEFF Research Database (Denmark)

    Jäkel, Ina Charlotte; Smolka, Marcel

    2013-01-01

    Using the 2007 wave of the Pew Global Attitudes Project, this paper finds statistically significant and economically large Stolper-Samuelson effects in individuals’ preference formation towards trade policy. High-skilled individuals are substantially more pro-trade than low-skilled individuals......-Ohlin model in shaping free trade attitudes, relative to existing literature....

  17. The War for Yemen

    Science.gov (United States)

    2016-03-01

    Fight The current conflict has roots in both Yemen’s history and the Sunni-Shia conflict. However, it has become a bloody , multi-faceted war. The...Iran: Ayatollah Khomeini.” Iran Chamber Society, accessed 15 February 2016, http://www.iranchamber.com/history/rkhomeini/ayatollah_khomeini.php...Studies Institute, US Army War College, Jun 2014, accessed 15 Feb 2016 via https://www.ciaonet.org/attachments/26548/uploads, 21-5, 66 2Iran Chamber

  18. War, violence and masculinities

    DEFF Research Database (Denmark)

    Christensen, Ann-Dorte; Rasmussen, Palle Damkjær

    2015-01-01

    The evolution and social constitution of masculinities are intimately linked to violence and to warfare as an organised field of violent practices. The mutual influences between violence, war and masculinities have taken different forms these have taken in different social and cultural contexts....... In this introductory article we present four key themes in this field and discuss perspectives and challenges for the study of violence, war and masculinities....

  19. Conflict, famine and the arms trade.

    Science.gov (United States)

    Judd, F

    1995-01-01

    Armed conflict has had horrendous humanitarian effects, causing 22 million deaths, over 80 per cent of them civilian, since 1945 and resulting today in 19 million refugees and 24 million displaced persons. War results in economic collapse, and high levels of military spending decrease regional stability. Benefits to the producers are limited or negative and developed countries should diversify away from arms production. There is a need for greater awareness in the developed countries, an end to the secrecy besetting the arms trade, and restructuring of the industry. A Code of Conduct governing arms exports is proposed.

  20. [The war victim].

    Science.gov (United States)

    Hugeux, P; Barouti, H

    1994-10-01

    Just as the concept of war itself, the concept of the war victim is progressive, necessitating legal, economic, social, sanitary, ethical and political adaptations. In France, the laws of 1919, effective from 2nd August 1914, brought radical reform as laws of public solidarity, which guaranteed by the nation, the support of invalids of the most savage war in history. The collective nature of this new social risk obliged the state to replace a purely financial compensation by a solution of rehabilitation. The "Office National des Mutilés et Réformés", created in March 1916, was put in charge of the organisation of professional reeducation. The "war invalids" category was being transform a logic of assistance into one of social action. Later, the legislative structure made extensions, enlarging the beneficiaries in the "war victim" category. The "Service de Santé des Armées" in its basic mission of support to the armed forces covers many areas. The "Anciens Combattants et Victimes de Guerre" administration disposes of specific instruments, such as the "Institution Nationale des Invalides", the "Centre d'Etudes et de Recherche sur l'Appareillage des Handicapés", the "Office National des Anciens Combatants". These joint actions, added to the ones of very influential autonomous associations, contribute to give handicapped war victims an honourable citizenship.

  1. Fourth Generation War: Paradigm for Change

    Science.gov (United States)

    2005-06-01

    Retrieved Apr 17, 2005 from http://www.radioislam.org/ historia /zionism/torture_9705.html Schmidle, R.E., & Hoffman, F.G. ( Sep 2004). Commanding the...conflict mixed with techniques of earlier generations (Hammes, Sep 1994). • War which pits nations against non-national organizations and networks...army opponents (Devdas, Aug 2003 and Several Caches with Weapons Found, Sep 2002). Other examples of the innovative use of existing technology are the

  2. External trade development in 2010

    OpenAIRE

    Český statistický úřad

    2011-01-01

    Analysis of the external trade development of the CR in total (turnover, export, import, trade balance). Main factors, which influence the external trade development. Territorial structure (by main blocks and selected countries) and commodity structure (by SITC, rev. 4) of the external trade. Comparisons of the CR external trade development with the external trade development of the other member states of the EU.

  3. War liver injuries

    Directory of Open Access Journals (Sweden)

    Stanković Nebojša

    2005-01-01

    Full Text Available Aim. To provide a retrospective analysis of our results and experience in primary surgical treatment of subjects with war liver injuries. Methods. From July 1991 to December 1999, 204 subjects with war liver injuries were treated. A total of 82.8% of the injured were with the liver injuries combined with the injuries of other organs. In 93.7%, the injuries were caused by fragments of explosive devices or bullets of various calibers. In 140 (68.6% of the injured there were minor lesions (grade I to II, treated with simple repair or drainage. There were complex injuries of the liver (grade III-V in 64 (31.4% of the injured. Those injuries required complex repair (hepatorrhaphy, hepatotomy, resection debridement, resection, packing alone. The technique of perihepatic packing and planned reoperation had a crucial and life-saving role when severe bleeding was present. Routine peritoneal drainage was applied in all of the injured. Primary management of 74.0% of the injured was performed in war hospitals. Results. After primary treatment, 72 (35.3% of the injured were with postoperative complications. Reoperation was done in 66 injured. Total mortality rate in 204 injured was 18.1%. All the deceased had significant combined injuries. Mortality rates due to the liver injury of the grade III, IV and V were 16.6%, 70.0% and 83.3%, respectively. Conclusion. Complex liver injuries caused very high mortality rate and the management of the injured was delicate under war circumstances (if the injured reached the hospital alive. Our experience under war circumstances and with war surgeons of limited knowledge of the liver surgery and war surgery, confirmed that it was necessary to apply compressive abdominal packing alone or in combination with other techniques for hemostasis in the treatment of liver injuries grade III-V, resuscitation and rapid transportation to specialized hospitals.

  4. Fighting the Last War

    DEFF Research Database (Denmark)

    Harmsen, Peter

    designed to bring about an early decision rather than being bogged down in a costly war of attrition. Among Chinese combatants, cultural references to World War I abounded. One officer described a period of relative peace as reminiscent of All Quiet on the Western Front. A young pilot found inspiration......Today the conflicts of the 1930s are generally seen as preludes to World War II, but for the contemporaries they were late echoes of the Great War. Few could have known that they lived not in the “postwar era” but the “interwar years”, and that an even bigger cataclysm was approaching. The battle...... between Chinese and Japanese forces for Shanghai from August to November 1937 is a case in point. It took place just 19 years after the end of World War I, reflected in a widespread tendency to look at the hostilities in China’s largest city through the prism of the global conflict two decades earlier...

  5. A Model for Trading the Foreign Exchange Market

    African Journals Online (AJOL)

    PROF. OLIVER OSUAGWA

    Keywords: FOREX, marcov chain, model, neural network, trading robot. Introduction. Electronic currency trading in the. Foreign Exchange (FOREX or FX) market is now a very popular activity. FOREX is the single largest market in the world accessible to anyone. Its volumes are greater than all stock, commodities and debt.

  6. Fair Trade Flowers: Global Certification, Environmental Sustainability, and Labor Standards

    Science.gov (United States)

    Raynolds, Laura T.

    2012-01-01

    This article analyzes the organization of the fair trade flower industry, integration of Ecuadorian enterprises into these networks, and power of certification to address key environmental and social concerns on participating estates. Pursuing a social regulatory approach, I locate fair trade within the field of new institutions that establish and…

  7. Trade and Industrial Policy Strategies (TIPS) Core Grant - Phase IV ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Trade and Industrial Policy Strategies (TIPS) Core Grant - Phase IV. Established in 1996, Trade and Industrial Policy Strategies (TIPS) is an organization that coordinates a network of researchers that seeks to provide the Government of South Africa, civil society and the region with independent advice on economic policy, ...

  8. Latin American think tank helps trade talks smarten up | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2012-05-23

    May 23, 2012 ... Image. Stephen Dale. Lasting impacts. A small group of trade scholars and policymakers brought together by IDRC in 1998 has become one of the most ... Researchers in the IDRC-supported network believed a closer reading of the new trade rules could break the stalemate, clarify the pros and cons, and ...

  9. Trade and Industrial Policy Strategies (TIPS) - Phase III | CRDI ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Trade and Industrial Policy Strategies (TIPS) is an network of researchers established in 1996 that seeks to provide the Government of South Africa, civil society and the region with independent advice on economic policy, with a particular focus on trade and industrial issues. Its mission is to form a critical mass of intellectual ...

  10. Effects of Bilateralism and the MFN Clause on International Trade

    DEFF Research Database (Denmark)

    Lampe, Markus

    2009-01-01

    manufactured goods. Gravity model estimates show that specific liberalizations increased exports of corresponding items, but not overall trade. Exporters from countries whose governments used bilateralism strategically to bring down partner tariffs benefitted most. Hence, the network in form and outcome...... is more properly identified with reciprocal liberalization practiced by the French than with British free-trade ideology....

  11. Prerequisites for Setting Up Management System in Municipal Retail Trade

    Science.gov (United States)

    Suraeva, Maria O.; Grigoryants, Igor A.; Karpova, Galina A.; Khoreva, Lyubov V.; Schreyer, Alexander V.; Sirotkin, Victor A.

    2016-01-01

    The relevance of the research problem Urban district, management, trade, sales network is determined by the number of complex problems that exist in present Samara municipal retail trade system, which is manifested in the lack of regulation, a glut of sales area, and poorly developed infrastructure. The purpose of this article is to form a…

  12. The Thirty Years War as a prototype of hybrid wars

    Directory of Open Access Journals (Sweden)

    A. V. Bagaeva

    2015-01-01

    Full Text Available The idea of the article is to show that the phenomenon of hybrid war, which confidently entered the scientific and official discourse, has a long history. In author’s opinion, the Thirty Years’ War in Central Europe can be characterized as one of the first historical examples of hybrid war.

  13. Life without war.

    Science.gov (United States)

    Fry, Douglas P

    2012-05-18

    An emerging evolutionary perspective suggests that nature and human nature are less "red in tooth and claw" than generally acknowledged by a competition-based view of the biological world. War is not always present in human societies. Peace systems, defined as groups of neighboring societies that do not make war on each other, exist on different continents. A comparison of three peace systems--the Upper Xingu River basin tribes of Brazil, the Iroquois Confederacy of upper New York State, and the European Union--highlight six features hypothesized to be important in the creation and maintenance of intersocietal peace: (i) an overarching social identity, (ii) interconnections among subgroups, (iii) interdependence, (iv) nonwarring values, (v) symbolism and ceremonies that reinforce peace, and (vi) superordinate institutions for conflict management. The existence of peace systems demonstrates that it is possible to create social systems free of war.

  14. Cultural War of Values

    DEFF Research Database (Denmark)

    Hervik, Peter

    2014-01-01

    Cultural War of Values: The Proliferation of Moral Identities In the Danish Public Sphere Peter Hervik (Aalborg University) This chapter looks at the drastic shift in the construction of minority others that came with the emergence of neo-nationalism, neo-racism and radical right populism...... in the post-1989 world. Through an analysis of a political philosophy launched in Denmark in the 1990s called the “Cultural War of Values”, I show that the moral identities proliferating in the Danish public sphere are fundamentally anti-political correct, anti-multiculturalist, and anti......-Marxist as confrontation is also directed at political adversaries. Thus, the chapter’s key argument is that the social construction of thick minority identities can only be understood in relation to the cultural war of value strategy aimed at domestic political opponents....

  15. Wars, disasters and kidneys.

    Science.gov (United States)

    Lameire, N

    2014-12-01

    This paper summarizes the impact that wars had on the history of nephrology, both worldwide and in the Ghent Medical Faculty notably on the definition, research and clinical aspects of acute kidney injury. The paper briefly describes the role of 'trench nephritis' as observed both during World War I and II, supporting the hypothesis that many of the clinical cases could have been due to Hantavirus nephropathy. The lessons learned from the experience with crush syndrome first observed in World War II and subsequently investigated over many decades form the basis for the creation of the Renal Disaster Relief Task Force of the International Society of Nephrology. Over the last 15 years, this Task Force has successfully intervened both in the prevention and management of crush syndrome in numerous disaster situations like major earthquakes.

  16. From War to Financial Crisis

    DEFF Research Database (Denmark)

    Harste, Gorm

    2014-01-01

    The present article analyzes the transformation of the long-term risks of protracted wars from the battlefield to the economic system. Major wars, supplied with strong capacities due to extended manpower resources, advanced logistic capabilities and permanency of campaign, expose their states to ...... the link between the Vietnam War, the Afghanistan War, the Iraq War, and the background for the financial crisis that began in 2008.......The present article analyzes the transformation of the long-term risks of protracted wars from the battlefield to the economic system. Major wars, supplied with strong capacities due to extended manpower resources, advanced logistic capabilities and permanency of campaign, expose their states...... to extremely costly engagements. This includes heavy long-term costs for war veterans. Accordingly, the center of gravity on the battlefield (Clausewitz) is transformed to the financial systems of taxes and credit systems. This is a classical historical lesson; but this story is indeed central to understanding...

  17. Korean War Veterans by State

    Data.gov (United States)

    Department of Veterans Affairs — The spreadsheet of Korean War Veterans by State includes the total Korean War Veteran population for each state and broken out by age and gender. It also includes...

  18. Radiological Effects of Nuclear War.

    Science.gov (United States)

    Shapiro, Charles S.

    1988-01-01

    Described are the global effects of nuclear war. Discussed are radiation dosages, limited nuclear attacks, strategic arms reductions, and other results reported at the workshop on nuclear war issues in Moscow in March 1988. (CW)

  19. Teaching about World War II.

    Science.gov (United States)

    Siler, Carl S.

    1995-01-01

    Examines a unit approach to World War II that emphasizes totalitarianism, the military conduct of the war, and the Holocaust. Advocates using a variety of teaching strategies, methods, and materials. Includes several examples of innovative materials and activities. (MJP)

  20. Trade protectionism and international monetary order: Recalling the relevance of past experience

    OpenAIRE

    Donges, Juergen B.

    1987-01-01

    After World War II, all industrial countries have reached a level of prosperity unprecedented in history; many developing countries and several socialist countries have experienced notable economic growth too. The post-war multilateral trading and monetary systems have been singled out by politicians, businessmen and academic economists as main institutional pillars for these achievements; they permitted positive net effects on resource allocation, economies of scale, international capital mo...

  1. Potential Impact of TPP Trade Agreement on US Bilateral Agricultural Trade: Trade Creation or Trade Diversion?

    OpenAIRE

    Yeboah, Osei Agyeman; Shaik, Saleem; Agyekum, Afia Fosua

    2015-01-01

    Trans-Pacific Partnership (TPP) trade agreement is a trade agreement U.S is negotiating with 11 other countries in the Asia-Pacific region (Australia, Brunei Darussalam, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore, and Vietnam) to reduce or eliminate tariffs on U.S. products exported to the TPP countries. With TPP, U.S expects to expand its trade with members of the partnership; resulting in GDP growth. However, there exist large concerns about the potential negative ...

  2. Nuclear war effects studied

    Science.gov (United States)

    Widespread starvation resulting from changes in climate in the aftermath of a large-scale nuclear war could kill far more people than would the bombs themselves. That prediction was made in a recent study by the Scientific Committee on Problems of the Environment (SCOPE), an a rm of the International Council of Scientific Unions (ICSU). “Noncombatant and combatant countries alike” would risk mass starvation; SCOPE predicted that all told, 2.5 billion people could die as a result of crop failures and breakdowns in food distribution after a nuclear war.

  3. International emissions trading

    DEFF Research Database (Denmark)

    Boom, Jan Tjeerd

    This thesis discusses the design and political acceptability of international emissions trading. It is shown that there are several designs options for emissions trading at the national level that have a different impact on output and thereby related factors such as employment and consumer prices....... The differences in impact of the design make that governments may prefer different designs of emissions trading in different situations. The thesis furthermore establishes that international emissions trading may lead to higher overall emissions, which may make it a less attractive instrument....

  4. In Defence of New Wars

    Directory of Open Access Journals (Sweden)

    Mary Kaldor

    2013-03-01

    Full Text Available This article reviews the literature on ‘new wars’. It argues that ‘new wars’ should be understood not as an empirical category but rather as a way of elucidating the logic of contemporary war that can offer both a research strategy and a guide to policy. It addresses four components of the debate: whether new wars are ‘new’; whether new wars are war or crime; whether the data supports the claims about new wars; and whether new wars are ‘post-Clausewitzean’. It argues that the obsession with the ‘newness’ of wars misses the point about the logic of new wars; that there is a blurring of war and crime but it is important to address the political elements of new wars; that, although the data should be used with caution, it does seem to offer support for some elements of the new war thesis; and that the argument is indeed post-Clausewitzean because new wars are not ‘contests of wills’ but more similar to a mutual enterprise. It concludes that the debate has greatly enriched the overall argument.

  5. The Technological Culture of War

    Science.gov (United States)

    Pretorius, Joelien

    2008-01-01

    The article proceeds from the argument that war is a social institution and not a historical inevitability of human interaction, that is, war can be "unlearned." This process involves deconstructing/dismantling war as an institution in society. An important step in this process is to understand the philosophical and cultural bases on…

  6. 'War neurosis' during the Spanish Civil War (1936-39).

    Science.gov (United States)

    Villasante, Olga

    2010-12-01

    The aim of this contribution is to analyse the incidence and treatment of war neurosis in Madrid during the Spanish Civil War. First, the scientific papers published on war neurosis during and after the war are examined. Then the work of Gregorio Bermann (1894-1972), a member of the International Brigades who organized the frontline Neuropsychiatric Service at the Hospital de Chamartín de La Rosa (Madrid), is analysed. Las neurosis en la guerra, published in 1941, which recounts Bermann's personal experience in the care of war neurosis in Spain, is also discussed.

  7. Traumatic war stressors and psychiatric symptoms among World War II, Korean, and Vietnam War veterans.

    Science.gov (United States)

    Fontana, A; Rosenheck, R

    1994-03-01

    Three hypotheses regarding symptoms of war-related posttraumatic stress disorder and general psychiatric distress were tested: that symptoms are more severe the more severe the traumatic exposure, regardless of the war in question; that symptoms are less severe the older the veterans' age; and that symptom levels differ across sociocultural cohorts. A total of 5,138 war zone veterans who were seeking treatment from specialized Veterans Affairs outpatient clinical teams made up the sample: 320 World War II, 199 Korean War, and 4,619 Vietnam War veterans. All hypotheses were supported significantly. The similarity of relationships between traumatic exposure and symptoms across wars testifies to the generality of these experiences. Furthermore, the results suggest the operation of significant effects due both to aging and to cohort differences in sociocultural attitudes toward the stigma of mental illness and the popularity of the wars.

  8. Biological trade and markets.

    Science.gov (United States)

    Hammerstein, Peter; Noë, Ronald

    2016-02-05

    Cooperation between organisms can often be understood, like trade between merchants, as a mutually beneficial exchange of services, resources or other 'commodities'. Mutual benefits alone, however, are not sufficient to explain the evolution of trade-based cooperation. First, organisms may reject a particular trade if another partner offers a better deal. Second, while human trade often entails binding contracts, non-human trade requires unwritten 'terms of contract' that 'self-stabilize' trade and prevent cheating even if all traders strive to maximize fitness. Whenever trading partners can be chosen, market-like situations arise in nature that biologists studying cooperation need to account for. The mere possibility of exerting partner choice stabilizes many forms of otherwise cheatable trade, induces competition, facilitates the evolution of specialization and often leads to intricate forms of cooperation. We discuss selected examples to illustrate these general points and review basic conceptual approaches that are important in the theory of biological trade and markets. Comparing these approaches with theory in economics, it turns out that conventional models-often called 'Walrasian' markets-are of limited relevance to biology. In contrast, early approaches to trade and markets, as found in the works of Ricardo and Cournot, contain elements of thought that have inspired useful models in biology. For example, the concept of comparative advantage has biological applications in trade, signalling and ecological competition. We also see convergence between post-Walrasian economics and biological markets. For example, both economists and biologists are studying 'principal-agent' problems with principals offering jobs to agents without being sure that the agents will do a proper job. Finally, we show that mating markets have many peculiarities not shared with conventional economic markets. Ideas from economics are useful for biologists studying cooperation but need

  9. Effect of RF Interference on the Security-Reliability Trade-off Analysis of Multiuser Mixed RF/FSO Relay Networks with Power Allocation

    KAUST Repository

    Abd El-Malek, Ahmed

    2017-03-27

    In this paper, the impact of radio frequency (RF) cochannel interference (CCI) on the performance of multiuser mixed RF/free-space optical (FSO) relay network with opportunistic user scheduling under eavesdropping attack is studied. The considered system includes multiple users, one decode-and-forward relay, one destination, and an eavesdropper. In the analysis, the RF/FSO channels follow Nakagami-m/Gamma-Gamma fading models, respectively, with pointing errors on the FSO link. Exact closed-form expression for the system outage probability is derived. Then, an asymptotic expression for the outage probability is obtained at the high signal-to-interference-plus-noise ratio regime to get more insights on the system performance. Moreover, the obtained results are used to find the optimal transmission power in different turbulence conditions. The secrecy performance is studied in the presence of CCI at both the authorized relay and eavesdropper, where closed-form expressions are derived for the intercept probability. The physical layer security performance is enhanced using cooperative jamming models, where new closed-form expressions are derived for the intercept probability. Another power allocation optimization problem is formulated to find the optimal transmission and jamming powers. The derived analytical formulas are supported by numerical results to clarify the main contributions of this paper.

  10. The World of Wars

    DEFF Research Database (Denmark)

    Harste, Gorm

    2014-01-01

    in the future. The “extreme 20th century” will have another history and another impact. Its extremes will be narrated as more extreme, and its temporal bindings become easier to observe. The much celebrated “revolutions in military affairs” will not dominate future war systems. Unipolarity is fading away...

  11. Images of War.

    Science.gov (United States)

    Davis, William C.

    1990-01-01

    Analyzes the rise of photography during the Civil War period, and discusses current photographic technology. Examines photography entrepreneurs, and expounds on notable individuals in photography. Describes types of photographs taken, problems encountered in gathering pictures, and popular responses to photography. Concentrates on Civil War…

  12. Civil War and Inoperativity

    DEFF Research Database (Denmark)

    Flohr, Mikkel

    2017-01-01

    of inoperativity towards a concept of destituent power drawing on his other writings. It makes the argument for thinking civil war and inoperativity – stasis and stasis – together to derive a concept of destituent power as a form of revolution against the sovereign state, which does not constitute a new sovereign...

  13. The theatre of war

    Directory of Open Access Journals (Sweden)

    Brigitte M Holzner

    2007-01-01

    Full Text Available Narrating the fate of the women of Troy, the Greek playwright Euripides provided the script for modern warfare: the murdered children of Hekuba, the sexual slavery of Briseis, Andromache as war prey, Polyxena burned as a sacrifice and Kassandra raped and made bed-maid of the Greek warlord, Agamemnon.

  14. Recent Cold War Studies

    Science.gov (United States)

    Pineo, Ronn

    2003-01-01

    Cold War historiography has undergone major changes since the 1991 collapse of the Soviet Union. For two years (1992-1993) the principal Soviet archives fell open to scholars, and although some of the richest holdings are now once again closed, new information continues to find its way out. Moreover, critical documentary information has become…

  15. War No Longer Exists

    Science.gov (United States)

    2012-03-22

    governments and terrorists, warlords, separatists, and in and among nations’ populations. Mary Kaldor echoes this 4 view, arguing that states are...19-20. 7 Mary Kaldor , “Elaborating the ‘New War’ Thesis,” in Isabelle Duyvesteyn and Jan Angstrom, eds., Rethinking the Nature of War (New York

  16. Thucydides: Theorist of War

    Science.gov (United States)

    2013-01-01

    the unremitting pressures of conflict; and the fundamental nature of war, including the psychological aspects of battle, where soldiers are engaged...this regard edmund burke was particularly perceptive in his understanding of the baleful influence that second- and third-order effects could

  17. How Fair is Fair Trade?

    NARCIS (Netherlands)

    Maseland, R.K.J.; Vaal, A. de

    2002-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair.’ This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost

  18. How fair is fair trade?

    NARCIS (Netherlands)

    Maseland, Robbert; Vaal, Albert de

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair’. This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost

  19. How Fair is Fair Trade?

    NARCIS (Netherlands)

    Vaal, A. de; Maseland, R.K.J.

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed fair . This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost

  20. Essays on asset trading

    NARCIS (Netherlands)

    Dieler, T.

    2014-01-01

    The overreaching methodology of my Ph.D. thesis is to substitute noise traders with rational traders. I do so by considering liquidity asymmetry between informed trader and uninformed traders. Liquidity asymmetry creates a motive for trade. Under this new setup, I study the impact of asset trade on

  1. Nitrogen Trading Tool (NTT)

    Science.gov (United States)

    The Natural Resources Conservation Service (NRCS) recently developed a prototype web-based nitrogen trading tool to facilitate water quality credit trading. The development team has worked closely with the Agriculture Research Service Soil Plant Nutrient Research Unit (ARS-SPNR) and the Environmenta...

  2. Banking and trading

    NARCIS (Netherlands)

    Boot, A.W.A.; Ratnovski, L.

    2013-01-01

    We study the interaction between relationship banking and short-term, scalable arm’s length finance which we call trading. Relationship banking is not scalable, has high franchise value, is long-term oriented and low risk. Trading is transaction-based: scalable, with lower margins (capital

  3. International trade. Multinational aspects.

    Science.gov (United States)

    Ozawa, Y

    2000-01-01

    Of numerous regional economic agreements, the European Union (EU), the North American Free Trade Agreement (NAFTA), South American Common Market (MERCOSUR), the Association of Southeast Asian Nations (ASEAN), the South Asian Association for Regional Cooperation (SAARC) and the Australia-New Zealand Closer Economic Relations Agreement are examples that are actively pursuing regional integration for freer trade of animals and animal products. The World Trade Organization (WTO) believes that regional and multinational integration initiatives are complements rather than alternatives in the pursuit of more open trade. In the efforts to harmonize SPS standards among multilateral trading nations, it is recommended that national requirements meet the standards developed by the OIE and the FAO/WHO Codex Alimentarius Commission as the minimum requirements rather than adopting the standards of the lowest common denominator. Regional grouping may hinder multilateral or bilateral trade between the countries of a group and those of the other groups. How to eliminate such non-tariff barriers as traditional trade custom remains to be examined. Ongoing activities of VICH (Harmonisation of Technical Requirements for Registration of Veterinary Medical Products) may pave the way for more open trade in pharmaceutical products between multilateral regional groups.

  4. The Coexistence of Croats and Serbs in the Pre-War and Post-War Period – An Implicite Critique of the War in Croatia as an Ethnic Conflict

    Directory of Open Access Journals (Sweden)

    Dragutin Babić

    2004-09-01

    Full Text Available The paper analyses the forms of coexistence between Croats and Serbs in the pre-war, war and post-war periods. The struggle for recognizing the right to self-determination of the republics of former Yugoslavia as well as denials of this right, which led to the attack by the Yugoslav army on Slovenia and Croatia, mainly destroyed the net of primary social relations in local communities affected by the war. However, even in war conditions, some segments of the neighbourhood and friendship networks remained intact on the local level. Some Croats and Serbs protected one another during the war. Pre-war coexistence and developed forms of social interaction and communication between Croats and Serbs as well as the preserved segments of micro-social ethnic networks during the war and the revival of coexistence between Croats and Serbs in the post-war period, indicate the strength and resistance of primary structures in local communities. This puts in doubt the interpretation of the war in Croatia as an ethnic conflict, and affirms the thesis that it was above all a political-state conflict. Events in former war areas in Croatia (in official terminology: areas of special state concern, together with the gradual, slow but nevertheless upward trend in the revival of coexistence, reveals the reasons/motives of the conflict. The conflicts were not the result of age-old hatreds, intolerance and long-standing local conflicts, but rather the consequence of opposed political projects advocated by the representatives of Croats and Serbs in Croatia. This is also the main argument for defining the political/military conflict in Croatia as above all a political/state conflict and not an ethnic one.

  5. Drivers of the virtual water trade

    Science.gov (United States)

    Tamea, S.; Carr, J. A.; Laio, F.; Ridolfi, L.

    2014-01-01

    Through the international trade of food commodities, countries virtually export or import the water used for food production, known as "virtual water." The international trade network thus implies a network of virtual water flows from exporting to importing countries. The purpose of this study is to identify some controlling factors of the virtual water network by means of multivariate regression analyses, or gravity laws, as often named in economics. Starting from the FAOSTAT database, we reconstruct 25 years (1986-2010) of international virtual water trade values; we then analyze the dependence of the exchanged fluxes on: population, gross domestic product, arable land, virtual water embedded in agricultural production and dietary demand, and geographical distance between countries. Significant drivers are identified for each country considering separately export and import fluxes; temporal trends are outlined and the relative importance of drivers is assessed by a commonality analysis. Results indicate that population, gross domestic product and geographical distance are the major drivers of virtual water fluxes, with a minor (nonnegligible) contribution given by the agricultural production of exporting countries. Such drivers have become relevant for an increasing number of countries throughout the years, with an increasing variance explained by the distance between countries and a decreasing role of the gross domestic product. The worldwide adjusted coefficient of determination of fitted gravity-law model is 0.57 (in 2010), and it has increased in time, confirming the good descriptive capability of selected drivers for the virtual water trade.

  6. SERVICE TRADE AND NON-OIL EXPORT IN NIGERIA

    Directory of Open Access Journals (Sweden)

    Mmaduabuchukwu Mkpado

    2013-01-01

    Full Text Available The paper was set to examine the relationship between different aspects of service trade and non oil export in Nigeria as well as assess the impact of capacity development on value of service trade and the implications for improving value of non oil export in Nigeria. Secondary data 1980 to 2010 were used. Data were analysed using descriptive statistics, correlation analysis and regression analysis. Results show that total service trade value in Nigeria has increased from $1126.59 million in 1980 to $3076.19 million in 2010. Significant correlations existed between the total value of service trade and all the types of service trade except with other service trade value. Road network, government (domestic capital expenditure on services, agricultural credit and domestic service GDP positively determine exportable services. Recommendations include improvement of service GDP and agricultural credit/loan facilities.

  7. Cyber War Game in Temporal Networks

    Science.gov (United States)

    2016-02-09

    helps design interde- pendent robust infrastructures . PLOSONE | DOI:10.1371/journal.pone.0148674 February 9, 2016 1 / 16 OPEN ACCESS Citation: Cho J-H...each attacker compromises another healthy node. It is estimated by: 20mc0 þ 21mc0 þ 22mc0 þ :::þ 2hmc0 ¼ Xh i¼0 2imc0 < h2 hmc0 where 2hmc0 < n < hn

  8. Networks and Transaction Costs

    OpenAIRE

    Henning, Christian; Henningsen, Geraldine; Henningsen, Arne

    2011-01-01

    Based on the well-known fact that social networks can provide effective mechanisms that help to increase the trust level between two trade partners, we apply a simple game-theoretical framework to derive transaction costs as a high risk of opportunistic behavior in a repeated trade relation determined by the density and size of trading networks. In the empirical part of the paper we apply a two stage procedure to estimate the impact of social network structures on farm’s transaction costs obs...

  9. African agricultural trade

    DEFF Research Database (Denmark)

    Jensen, Hans Grinsted; Sandrey, Ron

    2015-01-01

    This article starts with a profile of African agricultural trade. Using the pre-release version 9.2 of the GTAP database, we then show that the results for tariff elimination on intra-African trade are promising, but these tariff barriers are not as significant as the various trade-related barriers...... elimination, non-tariff barrier reductions and time in transit cost reductions are likely to be cumulative and would generate very large gains to Africa. The policy implications are clear: while cooperation will enhance the gains, much of the benefits will result from unilateral actions and regional...

  10. Trade and Development

    DEFF Research Database (Denmark)

    Abbott, Philip; Bentzen, Jeanet; Tarp, Finn

    2009-01-01

    methodologies. Forecasts for Vietnam greatly underestimated the impact of past agreements because tariff reform was not the main factor driving adjustments. Addressing market imperfections through institutional reform was central to bringing output and trade expansion. Key questions for future research......History, not predictions of CGE models or cross-country growth studies, shows a strong relationship between trade and development. Vietnam's experience with bilateral trade agreements, comparing actual outcomes with predictions from existing models, demonstrates this and the limitations of research...... are whether policy reform will result in new institutional changes, and how resulting incentives determine the evolution of investment by sector....

  11. Trade and Development

    DEFF Research Database (Denmark)

    Abbott, Philip; Bentzen, Jeanet Sinding; Tarp, Finn

    2009-01-01

    methodologies. Forecasts for Vietnam greatly underestimated the impact of past agreements because tariff reform was not the main factor driving adjustments. Addressing market imperfections through institutional reform was central to bringing output and trade expansion. Key questions for future research......History, not predictions of CGE models or cross-country growth studies, shows a strong relationship between trade and development. Vietnam’s experience with bilateral trade agreements, comparing actual outcomes with predictions from existing models, demonstrates this and the limitations of research...... are whether policy reform will result in new institutional changes, and how resulting incentives determine the evolution of investment by sector....

  12. Carbon Trading. Literature Overview

    Energy Technology Data Exchange (ETDEWEB)

    Kerste, M.; Weda, J.; Rosenboom, N.

    2010-12-15

    From Pigou and Coase to the Kyoto Protocol, carbon trading has resulted in pricing of the negative externalities emanating from pollution. This report highlights leading literature and empirical findings on carbon trading, amongst others addressing the relevant carbon and related markets, the (lack of) success of carbon trading so far and room for improvement as well as its impact on investments in emission reduction. This report is part of a set of SEO-reports on finance and sustainability. The other reports deal with: Financing the Transition to Sustainable Energy; Innovations in financing environmental and social sustainability; and Sustainable investment.

  13. War-related experiences of former child soldiers in northern Uganda: comparison with non-recruited youths.

    Science.gov (United States)

    Vindevogel, Sofie; Schryver, Maarten de; Broekaert, Eric; Derluyn, Ilse

    2013-11-01

    Armed conflict imposes huge hardship on young people living in war zones. This study assessed former child soldiers' experience and perception of stress in common war events during the armed conflict in northern Uganda and compares it with their non-recruited counterparts. To investigate whether child soldiers experienced more severe exposure to war events, and explore how war might affect youths differently, depending on the co-occurrence of these events. The study was undertaken in four northern Ugandan districts in 22 secondary schools with a sample size of 981 youths, about half of whom had been child soldiers. The participants completed a questionnaire on socio-demographic characteristics and stressful war events which was analyzed using descriptive statistics, a probabilistic index and correlation network analysis. Former child soldiers had significantly greater experience of war events than their non-recruited counterparts. The violence of war is more central in their experience and perception of stress, whereas the scarcity of resources and poor living conditions are most central for non-recruited participants. The extent to which a war event, such as separation from the family, is perceived as stressful depends on the experience and perception of other stressful war events, such as confrontation with war violence for former child soldiers and life in an Internally Displaced Persons' camp for non-recruited participants. The network approach permitted demonstration of the many ways in which war-affected youths encounter and appraise stressful war events. War events might function as moderators or mediators of the effect that other war events exert on the lives and well-being of young people living in war zones. This demands comprehensive and individualized assessment.

  14. Lindsay and the German Universities: An Oxford Contribution to the Post-War Reform Debate.

    Science.gov (United States)

    Phillips, David

    1980-01-01

    Discusses British involvement in educational reconstruction in Germany after World War II and the influence of Lord Lindsay of Birker in setting up the Royal Commission. The Commission consisted of German representatives from institutions of higher education, trade unions, churches, and the land authorities. (KC)

  15. Jaja-Ibeno War of 1881: The Ibeno Account and the Refugee ...

    African Journals Online (AJOL)

    Nekky Umera

    Ibeno War of. 1881. Dike (1956) gave the fact that Atlantic Trade started with human cargo from 1400 to 1700. This was when Europe explored the Americas for sugar, cotton and coffee and needed enormous work force. Although Dike touched ...

  16. Children Play War

    Directory of Open Access Journals (Sweden)

    P. Bankova

    2017-10-01

    Full Text Available The article reflects the results from the author’s research project on traditional and modern games of children in Bulgaria. Based on the life stories, interviews, media reports and other sources of information an ethnological reading of the memories of respondents during the Second World War and its impact on aspects of everyday culture, as is children’s play, will be made. Trough different types of narratives (anthropological, ethnographic, film and literary the author represents the children’s play of war as a reflection of the reality in which the children live and at the same time as one of the most vivid examples of how important the peace is for the comprehensive development of the human personality.

  17. The Afghan Air War

    Science.gov (United States)

    2002-09-01

    corrup- tion, and build a pure Islamic state. The actual resul t was oppression, austeri ty, and the decay of basic government funct ions. Women ...were forced to wear the al l -conceal ing burkha and soccer - stadium executions and amputat ions terrorized ci t izens. Al though the Tal iban in 2001... Bull -s Eye War: Pinpoint Bombing Shifts Role of GI Joe” Washington Post, Dec. 2, 2001. 27 Jumper, remarks at AFA’s February 2002 symposium in Orlando

  18. Children Play War

    OpenAIRE

    P. Bankova

    2017-01-01

    The article reflects the results from the author’s research project on traditional and modern games of children in Bulgaria. Based on the life stories, interviews, media reports and other sources of information an ethnological reading of the memories of respondents during the Second World War and its impact on aspects of everyday culture, as is children’s play, will be made. Trough different types of narratives (anthropological, ethnographic, film and literary) the author represents the child...

  19. Understanding War in Afghanistan

    Science.gov (United States)

    2011-01-01

    Works of art or history books showing human faces or female forms were destroyed. The animals in the Kabul Zoo were tortured or killed by Taliban...agronomists to help Afghan agriculture and animal husbandry enter the 21st century. In terms of reconstruction and development, the coalition, rein...in 114 Understanding War in Afghanistan Kabul that is linked into the provinces and districts and able to perform the basic security and welfare

  20. 'The most beautiful of wars' : Carl von Clausewitz and small wars

    OpenAIRE

    Scheipers, Sibylle

    2017-01-01

    Carl von Clausewitz was both an avid analyst of small wars and people’s war and, during the wars of liberation, a practitioner of small war. While Clausewitz scholars have increasingly recognised the centrality of small wars for Clausewitz’s thought, the sources and inspirations of his writings on small wars have remained understudied. This article contextualises Clausewitz’s thought on small wars and people’s war in the tradition of German philosophical and aesthetic discourses around 1800. ...

  1. The Effect of War on Children.

    Science.gov (United States)

    Goldson, Edward

    1996-01-01

    This paper discusses the effects of modern war on children in the 20th century, focusing on direct and indirect effects of World War II, Vietnam War, war in Afghanistan, conflicts in Africa and in Central America, and Persian Gulf War. The paper notes the devastating effects on children of disruption of education and other public services in…

  2. The Symbiosis of War Crime and Organized Crime in the Former Yugoslavia

    DEFF Research Database (Denmark)

    Nielsen, Christian Axboe

    gains during a time of war.  No aspect of society remained immune to the criminalization of social, political and economic transactions, with spillover effects visible even in those areas not directly engulfed by armed conflict.  Since the end of the wars in the former Yugoslavia, these networks have...... offered opposition, often violently so, against democratization and efforts to introduce the rule of law.  Based on empirical research on criminal networks before, during and after the wars in the former Yugoslavia, this paper will assess the progress achieved to date while focusing on the most...

  3. Environment, Trade, and Investment

    Science.gov (United States)

    Environment, trade, and investment are fundamentally linked as the environment provides many basic inputs of economic activity – forests, fisheries, metals, minerals – as well as the energy used to process those materials.

  4. Trading forest carbon - OSU

    Science.gov (United States)

    Issues associate with trading carbon sequestered in forests are discussed. Scientific uncertainties associated with carbon measurement are discussed with respect to proposed accounting procedures. Major issues include: (1) Establishing baselines. (2) Determining additivity from f...

  5. What Is Emissions Trading?

    Science.gov (United States)

    Learn the basics about how emissions trading uses a market-based policy tool used to control large amounts of pollution emissions from a group of sources in order to protect human health and the environment.

  6. A trade balance

    DEFF Research Database (Denmark)

    Daugbjerg, Carsten; Kay, Adrian

    2014-01-01

    The establishment of the World Trade Organization (WTO) has been widely accepted as representing the legalisation of world trading rules. However, it is important to reflect on the limits of this legalisation thesis in terms of the interface between international and domestic policy processes....... By locating trading disputes in a political analysis of policy implementation, it is argued that it is difficult to establish conceptually how the WTO dispute settlement system could have authority separate from and above the conventional international politics of trade policy relations. Instead, the article...... argues that case outcomes should be expected to be largely the product of domestic political institutions and policy processes, and how these intersect with developments in the WTO dispute settlement system. Brief studies of the Australian government's dispute settlement strategy and two high-profile WTO...

  7. World Trade Center

    Index Scriptorium Estoniae

    2006-01-01

    Esilinastus katastroofifilm "World Trade Center" : stsenarist Andrea Berloff : režissöör Oliver Stone : kunstnik Jan Roelfs : osades Nicholas Cage, Michael Pena, Stephen Dorff jpt : Ameerika Ühendriigid 2006. Ka filmi prototüüpidest

  8. Let's Talk Trade Books.

    Science.gov (United States)

    Gee, Thomas; Olson, Mary W.

    1992-01-01

    Describes strategies that use trade books to teach science to primary students. Strategies include (1) developing concepts and vocabulary; (2) using concrete manipulatives to reinforce learning; (3) encouraging retelling; (4) developing class summaries; and (5) developing visual imagery. (MDH)

  9. Additive versus multiplicative trade costs and the gains from trade

    DEFF Research Database (Denmark)

    Sørensen, Allan

    This paper addresses welfare effects from trade liberalization in a heterogeneous-fi…rms trade model including the empirically important per-unit (i.e. additive) trade costs in addition to the conventional iceberg (i.e. multiplicative) and fi…xed trade costs. The novel contribution of the paper...... is the result that the welfare gain for a given increase in trade openness is higher for reductions in per-unit (additive) trade costs than for reductions in iceberg (multiplicative) trade costs. The ranking derives from differences in intra-industry reallocations and in particular from dissimilar impacts...

  10. Recalling war trauma of the Pacific War and the Japanese occupation in the oral history of Malaysia and Singapore.

    Science.gov (United States)

    Blackburn, Kevin

    2009-01-01

    The Pacific War and the Japanese Occupation were traumatic periods in the lives of people now over seventy years old in Malaysia and Singapore. This study traces why individuals interviewed for oral history of the Pacific War and the Japanese Occupation have often been able to tell stories of trauma without being overwhelmed by their reminiscences. It emphasizes that memories of traumatic experiences of the Pacific War and the Japanese Occupation in Malaysia and Singapore are mediated and eased by supportive social networks that are part of the interview subject's community. The individual's personal memories of traumatic war experiences are positioned in the context of the collective memory of the group and, thus, are made easier to recall. However, for individuals whose personal memories are at variance with the collective memory of the group they belong to, recalling traumatic experiences is more difficult and alienating as they do not have the support in their community. The act of recalling traumatic memories in the context of the collective memory of a group is particularly relevant in Malaysia and Singapore. These countries have a long history of being plural societies, where although the major ethnic groups -- the Malays, Chinese, and Indians -- have lived side by side peacefully, they have lived in culturally and socially separate worlds, not interacting much with the other groups. The self -- identity of many older people who lived through the Pacific War and the Japanese Occupation is inextricably bound up with their ethnicity. Oral history on war trauma strongly reflects these identities.

  11. The Principles of War Reconsidered

    Science.gov (United States)

    2009-06-01

    consist of a checklist of principles of war. There existed the Art of War (not the Science) and the works of ancient, medieval , and nineteenth...third chapter of the thesis presents the transformation of the concept of the principles of war in the twentieth century. The canonizing of Napoleonic...This maelstrom of opinions, lacking in basic principles and clear laws round which they could be crystallized, was bound to be intellectually

  12. Reconstructive challenges in war wounds

    OpenAIRE

    Bhandari, Prem Singh; Maurya, Sanjay; Mukherjee, Mrinal Kanti

    2012-01-01

    War wounds are devastating with extensive soft tissue and osseous destruction and heavy contamination. War casualties generally reach the reconstructive surgery centre after a delayed period due to additional injuries to the vital organs. This delay in their transfer to a tertiary care centre is responsible for progressive deterioration in wound conditions. In the prevailing circumstances, a majority of war wounds undergo delayed reconstruction, after a series of debridements. In the recent m...

  13. The Macroeconomic Effects of War Finance in the United States: World War II and the Korean War.

    OpenAIRE

    Ohanian, Lee E

    1997-01-01

    During World War II, government expenditures were financed primarily by issuing debt. During the Korean War, expenditures were financed almost exclusively by higher taxes, reflecting President Truman's preference for balanced budgets. This paper evaluates quantitatively the economic effects of the different policies used to finance these two wars. Counterfactual experiments are used to explore the implications of financing World War II like the Korean War, and financing the Korean War like Wo...

  14. How Much is it Going to Cost Me to Complete a Collection of Football Trading Cards?

    Science.gov (United States)

    Gerke, Oke

    2013-01-01

    Trading cards for various sports and a range of other subjects such as architecture, animals, hobbies, and war have been in existence since the late nineteenth century and still enjoy great popularity. Two of the most prominent examples are baseball cards in the U.S. and football cards in Europe. Three strategies for collecting European football…

  15. Emissions trading: principles and practice

    National Research Council Canada - National Science Library

    Tietenberg, Thomas H

    2006-01-01

    ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 The Evolution of Emissions Trading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 The Evolution of Design Features...

  16. "It Ruined My Life": The effects of the War on Drugs on people who inject drugs (PWID) in rural Puerto Rico.

    Science.gov (United States)

    Abadie, R; Gelpi-Acosta, C; Davila, C; Rivera, A; Welch-Lazoritz, M; Dombrowski, K

    2018-01-01

    The War on Drugs has raised the incarceration rates of racial minorities for non-violent drug-related crimes, profoundly stigmatized drug users, and redirected resources from drug prevention and treatment to militarizing federal and local law enforcement. Yet, while some states consider shifting their punitive approach to drug use, to one based on drug treatment and rehabilitation, nothing suggests that these policy shifts are being replicated in Puerto Rico. This paper utilizes data from 360 PWID residing in four rural towns in the mountainous area of central Puerto Rico. We initially recruited 315 PWID using respondent-driven sampling (RDS) and collected data about risk practices and conducted HIV and HCV testing. During a second phase, we conducted 34 micro-ethnographic assays, in which we randomly recruited 34 participants from the first phase and included their ego networks in this phase. Our ethnographic inquiry produced significant data regarding the effects of the war on drugs on the local drug trade, drug availability, and injectors' social networks. Findings suggest that repressive policing has been ineffective in preventing drug distribution and use among those in our study. This type of law enforcement approach has resulted in the disproportionate incarceration of poor drug users in rural Puerto Rico, and mainly for nonviolent drug-related crimes. In addition, incarceration exposes PWID to a form of a cruel and unusual punishment: having to quit heroin "cold turkey" while the prison environment also represents a HIV/HCV risk. In turn, the war on drugs not only diverts resources from treatment but also shapes treatment ideologies, punishing non-compliant patients. Shifting the emphasis from repression to treatment and rehabilitation is likely to have a positive impact on the health and overall quality of life of PWID and their communities. Copyright © 2017 Elsevier B.V. All rights reserved.

  17. How fair is fair trade?

    OpenAIRE

    Maseland, Robbert; Vaal, Albert de

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair’. This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost based and economies of scale models. It is found that whether or not fair trade is superior to free trade or protectionism is highly dependent on a number of characteristics of the products to which fa...

  18. Creating Trading Networks of Digital Archives.

    Science.gov (United States)

    Cooper, Brian; Garcia-Molina, Hector

    Digital materials are vulnerable to a number of different kinds of failures, including decay of the digital media, loss due to hackers and viruses, accidental deletions, natural disasters, and bankruptcy of the institution holding the collection. Digital archives can best survive failures if they have made several copies of their collections at…

  19. [Nurses and spies during the First World War].

    Science.gov (United States)

    Halioua, Bruno

    2014-06-01

    During the First World War, some nurses distinguished themselves by playing a significant role in spy networks, using their activity as a cover. They took an active part in the setting up of escape routes for allied prisoners of war and the gathering of intelligence on the positions of German troops, in particular in Belgium and northern France. Among them Edith Cavell, Gabrielle Petit, Louise de Bettignies, Marie-Léonie Vanhoutte, Marthe Cocknaert and Emilienne-Rose Ducimetière are considered as heroines.

  20. Intention-Disguised Algorithmic Trading

    Science.gov (United States)

    Yuen, William; Syverson, Paul; Liu, Zhenming; Thorpe, Christopher

    Large market participants (LMPs) must often execute trades while keeping their intentions secret. Sometimes secrecy is required before trades are completed to prevent other traders from anticipating (and exploiting) the price impact of their trades. This is known as "front-running". In other cases, LMPs with proprietary trading strategies wish to keep their positions secret even after trading because their strategies and positions contain valuable information. LMPs include hedge funds, mutual funds, and other specialized market players.

  1. War Journalism and 'Objectivity'

    Directory of Open Access Journals (Sweden)

    Annabel McGoldrick

    2006-10-01

    Full Text Available This article opens by considering an apparent paradox. Many professional journalists, working on many media in many countries, consider themselves 'objective'. They do not, at least, set out to skew their coverage of important issues in favour of one side or the other. And yet much of their coverage of conflicts shows a discernible dominant pattern of War Journalism - biased in favour of war. This is not because of a lack of objectivity, the article suggests, but a surfeit. The set of conventions many editors and reporters regard as defining 'objective' journalism arose in response to economic and political conditions which rewarded news that could commend itself as unobjectionable to the maximum number of potential customers. Three of the most important conventions privilege official sources; a dualistic construction of stories and event, over process. Each of these, when applied to the representation of conflicts, leads readers and audiences - or leaves them - to over-value violent, reactive responses and under-value non-violent, developmental responses. Industry conventions sit uneasily alongside equally time-honoured expectations of journalism. These are encoded in rules and regulations governing the content of broadcast news, in many jurisdictions which have a public service concept for radio and television. In some respects, War Journalism can be shown to make it more difficult for broadcast news services to fulfil their public service obligations. Awareness is now growing, of the tension between these two pressures on journalism and its influence on the way pressing public debates are shaped and mediated. More Peace Journalism would help to bring public service news back into line with legitimate public expectations.

  2. Revisiting and Renegotiating Wars

    DEFF Research Database (Denmark)

    Gade, Solveig

    2014-01-01

    Anri Sala’s film 1395 Days Without Red (2011) provides a kind of reenactment of an accidental day during the 1992-95 siege of Sarajevo. Shot in today’s Sarajevo, the film revisits and embodies some of the widely circulated images of the siege, such as inhabitants sprinting across so-called Sniper...... Alley in order to avoid the bullets of the Bosnian Serbian snipers positioned around the city. Based on a close reading of Sala’s work, this article will scrutinize how subjectivating techniques of power, during times of war, affectively work to create boundaries between those excluded from and those...

  3. Culture Wars in Denmark

    DEFF Research Database (Denmark)

    Ørum, Tania

    2016-01-01

    In the 1960s high and low culture were brought into sharp conflict i Denmark. In 1961 a Ministry of Culture was established for the first time. The first minister of culture, the social democrat Julius Bomholt, saw art and culture as an important part of education for democracy that should be made...... available to everyone. The general public, however, raised demands for more popular and relaxing entertainment. The confrontation between the cultural elite and popular opinion escalated to a series of veritable culture wars....

  4. War and Power

    DEFF Research Database (Denmark)

    Carter, Dale

    2017-01-01

    against straights, dopers versus The Man, nerds contra jocks – in Vineland, Inherent Vice and Bleeding Edge. A number of these conflicts as well as others – both colonial and post-colonial – show up in V. In these novels warfare occasions, illuminates and interrogates the lineaments of power, not only...... – from Dominus Blicero to Gottfried, from Tyrone Slothrop to Clive Mossmoon – it identifies a variety of battle stations and triangulation points in relation to which Pynchon’s fictional conflicts may be mapped: from the concentration camps and nuclear explosions of world war two to the ballistic...

  5. War silver coins

    Directory of Open Access Journals (Sweden)

    Pantelić Svetlana

    2016-01-01

    Full Text Available There were two issues of silver 50-para, 1- and 2-dinar coins minted in the Parisian minting house marked with the year 1915 and bearing the image of King Petar I Karadjordjevic. Minted during the I World War, these two issues of silver coins only differed in that the first one had the specified name of the engraver (Schwarte, whereas the second issue had the engraver's name left out. These coins were used as the official legal tender until 28 June 1931.

  6. Danish Gulf War Veterans Revisited

    DEFF Research Database (Denmark)

    Nissen, Lars Ravnborg; Stoltenberg, Christian; Nielsen, Anni B Sternhagen

    2016-01-01

    OBJECTIVE: To examine the assumption that postdeployment incidence of sickness and other absence from work are higher among Gulf War Veterans compared with nonveterans. METHODS: A prospective registry study including a cohort of 721 Danish Gulf War Veterans and a control cohort of 3,629 nonvetera...

  7. Primary Sources Enliven Civil War

    Science.gov (United States)

    Robelen, Erik W.

    2011-01-01

    Today, a growing number of teachers are moving beyond the textbook in teaching about the war, and U.S. history more broadly. Teachers are digging directly into primary sources and harnessing technology, all in an attempt to help students better understand the past and bring it to life. Doing so may be especially important with the Civil War,…

  8. Encyclopedia of the Cold War

    NARCIS (Netherlands)

    van Dijk, R.

    2008-01-01

    Between 1945 and 1991, tension between the USA, its allies, and a group of nations led by the USSR, dominated world politics. This period was called the Cold War - a conflict that stopped short to a full-blown war. Benefiting from the recent research of newly open archives, the Encyclopedia of the

  9. Teaching War Literature, Teaching Peace

    Science.gov (United States)

    Powers, Janet M.

    2007-01-01

    This article explores literature taught in three different courses and the peace education approaches used for each, including epics in literature courses, Vietnam War literature, and literature of anger and hope. The author recommends the teaching of war literature as an essential part of a peace education curriculum. Devastating events such as…

  10. Getting the Civil War Right

    Science.gov (United States)

    Loewen, James W.

    2011-01-01

    William Faulkner famously wrote, "The past is never dead. It's not even past." He would not be surprised to learn that Americans, 150 years after the Civil War began, are still getting it wrong. Did America's most divisive war start over slavery or states' rights? The author says that too many people--including educators--get it wrong. The author…

  11. Does Red China Want War

    Science.gov (United States)

    1966-04-08

    acrimonious polemic with the Soviet Union has resulted in a hardening Soviet position toward aid to China. In fact, by late 1964, Soviet deliveries of...the Chinese position on nuclear war. The central issue in the Sino-Soviet polemic regarding nuclear war does not stem from any difference of opinion

  12. Stock portfolio structure of individual investors infers future trading behavior.

    Science.gov (United States)

    Bohlin, Ludvig; Rosvall, Martin

    2014-01-01

    Although the understanding of and motivation behind individual trading behavior is an important puzzle in finance, little is known about the connection between an investor's portfolio structure and her trading behavior in practice. In this paper, we investigate the relation between what stocks investors hold, and what stocks they buy, and show that investors with similar portfolio structures to a great extent trade in a similar way. With data from the central register of shareholdings in Sweden, we model the market in a similarity network, by considering investors as nodes, connected with links representing portfolio similarity. From the network, we find investor groups that not only identify different investment strategies, but also represent individual investors trading in a similar way. These findings suggest that the stock portfolios of investors hold meaningful information, which could be used to earn a better understanding of stock market dynamics.

  13. Stock Portfolio Structure of Individual Investors Infers Future Trading Behavior

    Science.gov (United States)

    Bohlin, Ludvig; Rosvall, Martin

    2014-01-01

    Although the understanding of and motivation behind individual trading behavior is an important puzzle in finance, little is known about the connection between an investor's portfolio structure and her trading behavior in practice. In this paper, we investigate the relation between what stocks investors hold, and what stocks they buy, and show that investors with similar portfolio structures to a great extent trade in a similar way. With data from the central register of shareholdings in Sweden, we model the market in a similarity network, by considering investors as nodes, connected with links representing portfolio similarity. From the network, we find investor groups that not only identify different investment strategies, but also represent individual investors trading in a similar way. These findings suggest that the stock portfolios of investors hold meaningful information, which could be used to earn a better understanding of stock market dynamics. PMID:25068302

  14. Trade creation and trade diversion in the Canada - United States Free Trade Agreement

    OpenAIRE

    Clausing, Kimberly A.

    2001-01-01

    In this paper the changes in trade patterns introduced by the Canada-United States Free Trade Agreement are examined. Variation in the extent of tariff liberalization under the agreement is used to identify the impact of tariff liberalization on the growth of trade both with member countries and non-member countries. Data at the commodity level are used, and the results indicate that the Canada-United States Free Trade Agreement had substantial trade creation effects, with little evidence of ...

  15. Do Trade Agreements Stimulate International Trade Differently? Evidence from 296 Trade Agreements

    OpenAIRE

    Kohl, Tristan; Brakman, Steven; Garretsen, Harry

    2013-01-01

    In a seminal paper, Rose (2004) found that the assumed positive impact of the WTO on international trade was questionable. This finding has been scrutinized and modified in subsequent research, using different datasets, econometric methods and separating the WTO from other forms of trade agreements. A key characteristic of this literature is the rather simplistic way in which trade agreements are treated whereby all trade agreements are lumped together. Trade agreements come, however, in many...

  16. Trade in tourism services

    DEFF Research Database (Denmark)

    Jensen, Camilla; Zhang, Jie

    2013-01-01

    The article addresses two questions related with tourism as a service trade. Can tourism be explained as other export activities? Does service liberalisation have a positive or negative impact on tourism receipts in destination countries? Previous research has either focused on the demand side...... factors (i.e. factors of demand in the origin countries) or on tourism as a long-run factor of economic growth. The research shows that a complementary perspective such as that offered by trade in a supply side perspective can render additional insights towards understanding tourism. This approach can...... to tourism are demonstrated: the general price competitiveness of the destination, tourism infrastructure and the provision of safety. The econometric models also confirm the relevance of other conventional explanatory factors of trade in services such as GDP per capita and internet usage. The last part...

  17. Reproduction–Immunity Trade-Offs in Insects

    Science.gov (United States)

    Schwenke, Robin A.; Lazzaro, Brian P.; Wolfner, Mariana F.

    2017-01-01

    Immune defense and reproduction are physiologically and energetically demanding processes and have been observed to trade off in a diversity of female insects. Increased reproductive effort results in reduced immunity, and reciprocally, infection and activation of the immune system reduce reproductive output. This trade-off can manifest at the physiological level (within an individual) and at the evolutionary level (genetic distinction among individuals in a population). The resource allocation model posits that the trade-off arises because of competition for one or more limiting resources, and we hypothesize that pleiotropic signaling mechanisms regulate allocation of that resource between reproductive and immune processes. We examine the role of juvenile hormone, 20-hydroxyecdysone, and insulin/insulin-like growth factor-like signaling in regulating both oogenesis and immune system activity, and propose a signaling network that may mechanistically regulate the trade-off. Finally, we discuss implications of the trade-off in an ecological and evolutionary context. PMID:26667271

  18. Reproduction-Immunity Trade-Offs in Insects.

    Science.gov (United States)

    Schwenke, Robin A; Lazzaro, Brian P; Wolfner, Mariana F

    2016-01-01

    Immune defense and reproduction are physiologically and energetically demanding processes and have been observed to trade off in a diversity of female insects. Increased reproductive effort results in reduced immunity, and reciprocally, infection and activation of the immune system reduce reproductive output. This trade-off can manifest at the physiological level (within an individual) and at the evolutionary level (genetic distinction among individuals in a population). The resource allocation model posits that the trade-off arises because of competition for one or more limiting resources, and we hypothesize that pleiotropic signaling mechanisms regulate allocation of that resource between reproductive and immune processes. We examine the role of juvenile hormone, 20-hydroxyecdysone, and insulin/insulin-like growth factor-like signaling in regulating both oogenesis and immune system activity, and propose a signaling network that may mechanistically regulate the trade-off. Finally, we discuss implications of the trade-off in an ecological and evolutionary context.

  19. WORLD MERCHANDISE TRADE

    Directory of Open Access Journals (Sweden)

    Serghei MĂRGULESCU

    2017-05-01

    Full Text Available This article is mainly based on the most recent statistical data of the World Trade Organization and some aspects related to the evolution of world merchandise trade, in terms of volume and value, in 2015. The volume of world merchandise trade continued to grow slowly in 2015 while the dollar value of it declined sharply as exports fell 14 per cent to US$ 16 trillion, down from US$ 19 trillion in the previous year. It presents also the contribution of the volume change and of the change in unit values (which account for fluctuations in prices and exchange rates to the value trade growth (in current dollar terms. The discrepancy between trade growth in 2015 in terms of volume and value was mostly attributable to swings in commodity prices and exchange rates The course of economic globalization is also shortly looked on based on some data and considerations of Credit Suisse analysts. Three different scenarios were taken into account in this respect. First one in which globalization continues in the form we know it over the past thirty years, second one in which a multipolar world is a better representation of the state of affairs and third, a scenario in which globalization ends due to the rise of anti-globalization political movements. The second scenario seems to provide a better reflection of reality today, despite the fact that a certain slowdown is observable when taking into account the diminishing growth rate of physical trade, the slower penetration of foreign assets of the developed market companies and signs of reshoring of some business back home. Globalization remains intact in terms of consumption and marketing patterns, while companies seem more reluctant to invest abroad.

  20. Suicide among War Veterans

    Directory of Open Access Journals (Sweden)

    Vsevolod Rozanov

    2012-07-01

    Full Text Available Studies aiming to identify if war veterans are at higher risk of suicide have often produced inconsistent results; this could be due to the complexity of comparisons and different methodological approaches. It should be noted that this contingent has many risk factors, such as stressful exposures, wounds, brain trauma and pain syndrome. Most recent observations confirm that veterans are really more likely to die of suicide as compared to the general population; they are also more likely to experience suicidal ideation and suffer from mental health problems. Suicides are more frequent in those who develop PTSD, depression and comorbid states due to war exposure. Combat stress and its’ frequency may be an important factor leading to suicide within the frame of the stress-vulnerability model. According to this model, the effects of stress may interact with social factors, interpersonal relations and psychological variables producing suicidal tendencies. Modern understanding of stress-vulnerability mechanisms based on genetic predispositions, early life development, level of exposure to stress and stress-reactivity together with interpersonal aspects may help to build more effective suicide prevention programs based on universal/selective/indicated prevention principles.

  1. Suicide among War Veterans

    Science.gov (United States)

    Rozanov, Vsevolod; Carli, Vladimir

    2012-01-01

    Studies aiming to identify if war veterans are at higher risk of suicide have often produced inconsistent results; this could be due to the complexity of comparisons and different methodological approaches. It should be noted that this contingent has many risk factors, such as stressful exposures, wounds, brain trauma and pain syndrome. Most recent observations confirm that veterans are really more likely to die of suicide as compared to the general population; they are also more likely to experience suicidal ideation and suffer from mental health problems. Suicides are more frequent in those who develop PTSD, depression and comorbid states due to war exposure. Combat stress and its’ frequency may be an important factor leading to suicide within the frame of the stress-vulnerability model. According to this model, the effects of stress may interact with social factors, interpersonal relations and psychological variables producing suicidal tendencies. Modern understanding of stress-vulnerability mechanisms based on genetic predispositions, early life development, level of exposure to stress and stress-reactivity together with interpersonal aspects may help to build more effective suicide prevention programs based on universal/selective/indicated prevention principles. PMID:22851956

  2. Commemorating a war that never came:

    DEFF Research Database (Denmark)

    Farbøl, Rosanna

    2017-01-01

    The Cold War never became the global World War III. It was a war that never broke out. Nevertheless, in some countries like for instance Denmark it is commemorated as exactly that: a war. This is particularly apparent at museums and heritage sites, where the narrative and mnemonic frame works used...... and activated in the representations stem from cultural memories of the Second World War. In the proccesses of establishing this Cold War cultural memory as a war memory, it has become part of a transcultural passion for memories of traumatic pasts, but the Cold War as cultural memory is a counter-factual war...... memory. Because the war never broke out, it is a malleable and usable past with a great potential for contestation – and counter-factuality. In Denmark, the Cold War has, moreover, become part of a fierce competition between rivaling memory communities, preventing a common commemoration culture...

  3. Free Trade and Protectionism

    OpenAIRE

    Benoni DIMULESCU

    2008-01-01

    One of the most interesting debates in economics is about free trade and protectionism. The arguments in favor of both directions are described by the analysis of free trade case and protectionism case. These are based on the economists’ thoughts that, on a side, the state should not intervene in international flow of goods and services and, on another side, it should be created a system of tariffs, quotas and export subsidies in order to protect the national economy of each state in report w...

  4. Tungsten in the Second World War: China, Japan, Germany, the Allies and Iberia

    Directory of Open Access Journals (Sweden)

    Joan Maria Thomàs

    2017-12-01

    Full Text Available This article studies the production, legal and illegal trade, and provisioning of strategic mineral wolfram/tungsten both by the Allies and the Axis during World War II. It analyzes the case the world’s largest producer of this mineral, China, the trade agreements signed by Chiang Kai-shek before the war with Nazi Germany, the USSR and Britain and their evolution during the global conflict. It also analyzes Japan, its difficulties in obtaining Chinese wolfram and its dependence on Korea. As for Nazi Germany, it studies its supply of Chinese ore until 1941 and later in the Iberian Peninsula, a trade made difficult by the Allied preventive purchases in Spain and Portugal. The article also studies the case of the US, its progressive auto provisioning in the Western Hemisphere, the airlift established between China and India to extract tungsten and distribution of amounts of it in Britain and the USSR. Finally, the article includes an assessment of the importance of tungsten within the set of strategic materials used by the contenders in the war and concludes that the Allied strategy hinder or prevent the provision of the enemy helped to reduce use and negatively affected the effectiveness of its machinery of war.

  5. The Finitude of War or the Infinite War

    Directory of Open Access Journals (Sweden)

    Alexander Muriel Restrepo

    2014-12-01

    Full Text Available On the basis of the difference between M. Foucault and Th. Hobbes regarding war as a principle and foundation of power, the article shows the importance of this conceptual difference for contemporary political analyses. Foucault argues that in modern Western societies, the political community and, more specifically, politics itself, has been the space of a war waged by other means. By extension, this thesis entails the inversion of von Clausewitz’s principle, namely, that war is the continuation of politics by other means.

  6. Food Trade and Its Water Footprint Under Climate and Policy Scenarios

    Science.gov (United States)

    Konar, M.; Hussein, Z.; Hanasaki, N.

    2014-12-01

    Trade has become increasingly important in the global redistribution of food, with important ramifications for food security, water resources, and transportation infrastructure, among others. Thus, it essential to understand how food trade and its water footprint may change in the future. To this end, we project international food trade, as well as its water footprint, under climate and policy scenarios for the year 2030. We use the H08 global hydrologic model to determine the impact of climatic changes to staple crop yields and evapotranspiration. Using the yield changes projected with the H08 model, we estimate the bilateral trade of staple crops using the Global Trade Analysis Project model. We combine these projections to obtain the water footprint of food trade, global network properties, and trade-based water savings across scenarios. Our findings indicate the relative importance of near-future climate and policy scenarios for food trade and its water footprint.

  7. Syllabus in Trade Welding.

    Science.gov (United States)

    New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

    The syllabus outlines material for a course two academic years in length (minimum two and one-half hours daily experience) leading to entry-level occupational ability in several welding trade areas. Fourteen units covering are welding, gas welding, oxyacetylene welding, cutting, nonfusion processes, inert gas shielded-arc welding, welding cast…

  8. Trade Remedies: A Primer

    National Research Council Canada - National Science Library

    Jones, Vivian C

    2008-01-01

    ....) authorize the imposition of duties if (1) the International Trade Administration (ITA) of the Department of Commerce determines that foreign merchandise is being, or likely to be sold in the United States at less than fair value, and (2) the U.S...

  9. Trade Remedies: A Primer

    National Research Council Canada - National Science Library

    Jones, Vivian C

    2007-01-01

    ....) authorize the imposition of duties if (1) the International Trade Administration (ITA) of the Department of Commerce determines that foreign merchandise is being, or likely to be sold in the United States at less than fair value, and (2) the U.S...

  10. Learning with Trade Unionists.

    Science.gov (United States)

    Wooton, Richard

    1986-01-01

    Recommends that the study of trade unions be included in the school curriculum. Argues that learning about relationships between unions and management through interviews, observations, and simulations can enhance the overall approach to teaching about controversial topics. Gives examples of some attempts to do this in schools. (TW)

  11. Trading health for money

    DEFF Research Database (Denmark)

    Ajslev, Jeppe Zielinski Nguyen; Møller, Jeppe Lykke; Persson, Roger

    2017-01-01

    subjectivity. The analysis draws on interviews with 32 Danish construction workers as well as brief observations. The article shows how ‘trading health for money’ becomes a mode for maintaining positive social, occupational and masculine identity among construction workers. Furthermore, it shows how the agency...

  12. Globalization and world trade

    Science.gov (United States)

    Peter J. Ince; Joseph Buongiorno

    2007-01-01

    This chapter discusses economic globalization and world trade in relation to forest sector modeling for the US/North American region. It discusses drivers of economic globalization and related structural changes in US forest product markets, including currency exchange rates and differences in manufacturing costs that have contributed to the displacement of global...

  13. Intra-industry trade

    NARCIS (Netherlands)

    J.G.M. van Marrewijk (Charles)

    2008-01-01

    textabstractIntra-industry trade arises if a country simultaneously imports and exports similar types of goods or services. Similarity is identified here by the goods or services being classified in the same “sector”. Suppose, for the sake of argument, that we focus on the sector “cars”.

  14. Applied International Trade Analysis

    NARCIS (Netherlands)

    J.M.A. Viaene (Jean-Marie); H.P. Bowen (Harry); A. Hollander (Abraham)

    1998-01-01

    textabstractThe book was written with two objectives in mind. First, to give students, practioners and researchers a text that encompasses the important theoretical and applied developments in the field and bringst to the fore those questions, left unanswered by traditional trade models, which the

  15. Introduction to International Trade.

    Science.gov (United States)

    Crummett, Dan M.; Crummett, Jerrie

    This set of student and teacher guides is intended for use in a course to prepare students for entry-level employment in such occupational areas in international trade as business/finance, communications, logistics, and marketing. The following topics are covered in the course's five instructional units: introduction to careers in international…

  16. Traits traded off

    NARCIS (Netherlands)

    Rueffler, Claus

    2006-01-01

    The course of evolution is restricted by constraints. A special type of constraint is a trade-off where different traits are negatively correlated. In this situation a mutant type that shows an improvement in one trait suffers from a decreased performance through another trait. In a fixed fitness

  17. Trade Union Rights.

    Science.gov (United States)

    Maier, Heribert; And Others

    1994-01-01

    Excerpts addresses from an international symposium regarding workers' education, human rights, labor standards and law, socioeconomic factors, trade unions, workers' rights, professionalism, and globalization. Includes a background paper, "Participation of Workers and Their Organizations in the Field of International Labour Standards and the…

  18. Network technologies as innovative solution in commodity circulation

    Directory of Open Access Journals (Sweden)

    Krasyuk I.A.

    2017-01-01

    Full Text Available The paper identifies the specific features of innovations in the trade industry. Innovations, created in other industries, are preferably used in the area of trade. The types of innovations in the field of trade have been specified. The establishment of a networking commercial enterprise has been defined as an innovative solution, widely used in Russian and world practice. The current state of network trade has been investigated and the tendency of retail network expanding in the Russian Federation has been discovered. The concept of a multi-format establishment and the most perspective trade formats have been identified based on the example trading company X5 RetailGroup.

  19. 40 Dynamics of Foreign Trade and Trade Relation Problems: Policy ...

    African Journals Online (AJOL)

    FIRST LADY

    2011-01-18

    Jan 18, 2011 ... international economic system, and the obvious concomitant administrative inadequacies that profusely characterized GATT, another body known as the. World Trade Organization (WTO) came into existence in 1995, to officiate as the recognized international organization on trade and trade relations. The.

  20. The Lessons of the Vietnam War.

    Science.gov (United States)

    Starr, Jerold M., Ed.

    This text book on the Vietnam War is to be used in teaching high students. Each of the volume's 12 chapters is a self-contained unit on an aspect of the War. The chapters are: (1) Introduction to Vietnam: land, history, and culture; (2) America at war in Vietnam: decisions and consequences; (3) Was the Vietnam War legal? (4) who fought for the…

  1. War and Peace: Toys, Teachers, and Tots.

    Science.gov (United States)

    Dodd, Arleen; And Others

    War play is play with a toy that initiates violence or play that involves the imitation of war. War play can involve: (1) the use of toys based on television cartoon shows to imitate the action in the cartoons; (2) play with replicas of war paraphernalia or manipulatives shaped into guns; and (3) dramatic play. The negative effects on children…

  2. The Spanish Civil War: An Analysis

    Science.gov (United States)

    2003-10-31

    later. Although the Spanish Civil War is little covered in American classrooms , its carnage rivals that of the U.S. Civil War: 500,000 deaths, of...October 2003), Spanish Civil War. 3 Felipe Ribeiro de Meneses, Franco and the Spanish Civil War (New York: Routledge, 2001). 4 University of

  3. Australia's South African war 1899-19021

    African Journals Online (AJOL)

    based on estimates arrived at in Chamberlain, Australians in the South African war, pp 79, 88-9. The standard works on the ... American war, was a consequence of this. As war in South Africa loomed in mid-1899 the ... 1899 the uitlander cause enjoyed a quiet sympathy in many families. As the war broke out, hundreds of ...

  4. Australia's South African war 1899-19021

    African Journals Online (AJOL)

    Australia's South African war 1899-19021. DR CRAIG WILCOX. Australian WarMemorial historian o/the Anglo-Boer War, Sydney, Australia. Around twenty thousand Australians fought in the great war between the. British empire and the republics of the Orange Free State and the Transvaal. Those. Australians constituted ...

  5. Contributions of Psychology to War and Peace

    Science.gov (United States)

    Christie, Daniel J.; Montiel, Cristina J.

    2013-01-01

    The contributions of American psychologists to war have been substantial and responsive to changes in U.S. national security threats and interests for nearly 100 years. These contributions are identified and discussed for four periods of armed conflict: World Wars I and II, the Cold War, and the Global War on Terror. In contrast, about 50 years…

  6. Just war and the problem of evil

    DEFF Research Database (Denmark)

    Schott, Robin May

    2008-01-01

    In this essay, Robin May Schott criticizes leading proponents of just war theory and introduces the notion of justifiable but illegitimate violence. Instead of legitimating some wars as just, it is better to acknowledge that both the situation of war and moral judgments about war are ambiguous...

  7. Animal transportation networks

    Science.gov (United States)

    Perna, Andrea; Latty, Tanya

    2014-01-01

    Many group-living animals construct transportation networks of trails, galleries and burrows by modifying the environment to facilitate faster, safer or more efficient movement. Animal transportation networks can have direct influences on the fitness of individuals, whereas the shape and structure of transportation networks can influence community dynamics by facilitating contacts between different individuals and species. In this review, we discuss three key areas in the study of animal transportation networks: the topological properties of networks, network morphogenesis and growth, and the behaviour of network users. We present a brief primer on elements of network theory, and then discuss the different ways in which animal groups deal with the fundamental trade-off between the competing network properties of travel efficiency, robustness and infrastructure cost. We consider how the behaviour of network users can impact network efficiency, and call for studies that integrate both network topology and user behaviour. We finish with a prospectus for future research. PMID:25165598

  8. Castles at War

    DEFF Research Database (Denmark)

    April 29th-30th 2013, its topic was "Castles at War" in particular during the period AD 1000–1660. For the last 20 years, archaeological and historic research has dealt with many aspects of castles, their function as a noble family's seat, their role each as an administrative unit's centre...... and tactical function as a military stronghold that played a central role in the political strategies of the ruling European elite. Even as a threat of force, a castle had the potential to structure a conflict or to structure the rule of a region. This role of castles in medieval warfare has long been...... considered to be a topic primarily for a narrow circle of specialists in military history and archaeologists interested in loop-holes and mining technique. However, the picture has been changing, and both historians and archaeologists have started to recognize the critical relevance of strongholds, castles...

  9. War and society

    Directory of Open Access Journals (Sweden)

    Upeniece V.

    2016-01-01

    Full Text Available A discussion of effects of war on society is desirable as it can stimulate nations and their politicians to refrain in their international and non-international relations from the threat or use of force against the territorial integrity or political independence of the state. The prohibition of the use of force is a valid norm of customary international law and is fixed in the Charter of the United Nations. Any specific use of force can be lawful only if it is based on exceptions of this rule (action of self-defence under the Article 51 or action under specific authorization by the Security Council under Chapter VII. However the main issue is how to ensure that the other states respect this principle of non-use of force.

  10. Mali: Visions of War

    Directory of Open Access Journals (Sweden)

    Roland Marchal

    2013-06-01

    Full Text Available Political elites in Bamako articulate different understandings of the war in northern Mali, though share the same view on the restoration of Malian sovereignty. Those visions are deeply rooted in an assessment of the past failed peace agreements with Tuareg groups, a focus on social and ethnic differentiations that emphasize the role of Kidal and the will to avoid major reforms in dealing with key issues such as the efficiency of the political system, the role of Islam in the Malian polity and the complicated relations between Bamako and its neighbours. The status of AQIM in the current crisis, contrary to the international narrative, is downplayed while other armed groups, in particular the MNLA, are seen as the real, and, often, only threat.

  11. Wars of Forms

    DEFF Research Database (Denmark)

    Clausen, Lars

    2013-01-01

    , both political and military, war between the two forms, the post-napoleonic, Fichtean notion of nationality (1807-8) and the historical notion of imperium. “Nationality” entered the political semantics witch such a force and shook the existing political order of empires to the ground because of its...... households and fragments of earlier political empires, such as the Danish Realm (rigsfællesskab) with Greenland, The Faroe Islands and the Danish State, poses the important question: how did the replacement and re-formation of the European political system happen? I argue, that we can observe a semantic...... and apply appropriate forms of response. To unravel the two complex cases of political ‘management’ of the rise of german nationality, I have to open up the semantic complex of “crown”, “state”, “kingdom”, prince and government, as they are used in governmental, internal communications, dispatches...

  12. Becoming a warring nation

    DEFF Research Database (Denmark)

    Daugbjerg, Mads; Sørensen, Birgitte Refslund

    2017-01-01

    This introduction sets the frame for the section’s four articles, all themed on contemporary developments in Denmark in the wake of the country’s involvement in the ‘coalition’ wars of recent decades. During this period, Danish governments have adopted a so-called ‘activist’ foreign policy, a key...... pacifism and a strong foreign policy tradition of non-involvement. We outline this Danish road from ‘adaptation’ to ‘activism’, arguing for a need for a critical, qualitatively based research focus on the social and cultural repercussions of this peculiar ‘military moment’ in Denmark. The four articles...... that make up the themed section are written on the basis of ethnographic case studies that seek to contribute to such a wider discussion....

  13. Energy as an issue of word trade law; 'Energie' als Thema des Welthandelsrechts

    Energy Technology Data Exchange (ETDEWEB)

    Schorkopf, F. [Bonn Univ. (Germany). Inst. fuer Oeffentliches Recht

    2007-07-01

    World trade law is a framework of regulations governing the commercial interests of states and state alliances. It consists of a set of norms that were instituted under the auspices of the World Trade Organisation (WTO) in 1995 and are largely shaped on the guiding principles of the General Agreement on Tariffs and Trade (GATT) which was drawn up in the post-war era. Over the course of its evolution up to the present the world trade order has been based on the premises of an economic starting situation where every trading nation has an interest in selling its surplus production abroad at favourable terms and under reliable conditions. This commercial interest often meets with the regulatory power of governments wanting to restrict the import of goods for various reasons. On inquiring into the significance of world trade law for energy goods one is confronted with ambiguous and sometimes irritating answers that can only be understood properly if one takes the atypical commercial interests prevailing in the energy sector and the singular status of energy in international relations into account. This paper addresses the subject from a perspective that combines the significance of world trade law for the energy sector with how commercial interests are distributed among trading nations and trading blocks.

  14. Pangolins in eastern Nepal: trade and ethno-medicinal importance

    Directory of Open Access Journals (Sweden)

    Hem Bahadur Katuwal

    2015-07-01

    Full Text Available Pangolin populations are declining globally due to illicit trade for meat and ethno-medicinal practices. We performed semi-structured interviews to analyze scenario of trade activities and documented the ethno-medicinal importance of pangolins in four districts of eastern Nepal. Out of 106 respondents, 78.3% had seen live pangolins, 90.6% had seen their burrows and 66% respondents speculated their decreasing population. Although 64% of the respondents were aware that pangolin is protected species, 44% of respondents had eaten its meat. We found the trade as an organized network where poachers of one village supply pangolins and its parts to poachers of another village and so on until it reaches the international border. Trade flow was more across the Chinese border via different routes where the prices varied from US$ 500–625/kg or even more. For this illegal trade, poachers provoke unemployed youths especially from ethnic communities. Most people hunt pangolins merely for trade without knowing its exact medicinal value. Some people, however, use meat and scales to supposedly cure gastro-intestinal disease, skin disease, cardiac problem, pregnancy pains, back pain; and also for making rings, bags, jackets, purses and musical instruments. As most pangolin habitats lie outside protected areas, illicit trade is increasing rapidly. We recommend immediate strategic plans, effective monitoring techniques and inter-border cooperation to thwart the trade, and raise awareness of their importance.  

  15. Critique of the War Reason

    DEFF Research Database (Denmark)

    Harste, Gorm

    was soldier and prisoner of war from age 15-17, would not write a “Der Krieg der Gesellschaft”. Yet the attempt to narrow this lacuna is indeed a heavy burden and a difficult task, in which, firstly, it is methodologically decisive to get the basic distinctions right about a second order observation of war....... Conflict is basically a problem of essentially contested communication. Once this historical self-reference was established around the 17th century, war, thirdly, became delimited by its structural couplings to religion, mass media (propaganda), finance, welfare for victims and veterans, law, politics...

  16. Wars of Ideas and the War of Ideas

    National Research Council Canada - National Science Library

    Echevarria, II, Antulio J

    2008-01-01

    ... as such. With that in mind, this monograph offers a brief examination of four common types of wars of ideas, and uses that as a basis for analyzing how the United States and its allies and strategic partners...

  17. Wars of Ideas and the War of Ideas

    National Research Council Canada - National Science Library

    Echevarria, II, Antulio J

    2008-01-01

    ... of them. They are, indeed, genuine wars, even though the physical violence might be minimal, because they serve a political, socio-cultural, or economic purpose, and they involve hostile intentions...

  18. Extracting geography from trade data

    Science.gov (United States)

    Li, Yuke; Wu, Tianhao; Marshall, Nicholas; Steinerberger, Stefan

    2017-05-01

    Understanding international trade is a fundamental problem in economics-one standard approach is via what is commonly called the "gravity equation", which predicts the total amount of trade Fi j between two countries i and j as

  19. War and Economics: Spanish Civil War Finances Revisited

    OpenAIRE

    Martin-Acena, Pablo; Martinez Ruiz, Elena; Pons Brias, Maria A.

    2010-01-01

    This paper reviews how the Spanish civil war was financed. We present new evidence to show that the two combatant parties, the Republican government and the Franco administration followed similar financial strategies. In both cases money creation, rather than new taxes or the issue of debt, was the main mechanism used to cover the expenses of the war. We argue, contrary to the established knowledge, that both sides consumed a similar amount of domestic and foreign resources. We also argue tha...

  20. Gulf War Illness and the Health of Gulf War Veterans

    Science.gov (United States)

    2008-11-01

    sign. higher; retinol binding protein ns higher 2005: Serum uric acid ns lower Neurocognitive function 1997: Poorer accuracy on automated performance...with muscle metabolism and physical endurance in 49 Gulf War veterans and 61 nonveterans with chronic fatigue syndrome (CFS).1725 In Gulf War veterans...118. 120. Behan PO, Behan WM, Horrobin D. Effect of high doses of essential fatty acids on the postviral fatigue syndrome . Acta Neurol Scand. 1990;82

  1. Being at war: Cognitive Approaches to Observational War Documentaries

    DEFF Research Database (Denmark)

    Bondebjerg, Ib

    2017-01-01

    : Janus Metz’s Danish ‘Armadillo’ (2010) following a group of soldiers to Afghanistan, and Andreas Dalsgaard and Obiada Zytoon’s Danish-Syrian ‘The War Show’ following a group of young Syrians during the Syrian spring to the civil war and beyond. Based on theories of cognition and emotion and evolutionary...... the different genres address different parts of our cognition and emotion....

  2. Ethnicity and the spread of civil war

    OpenAIRE

    Bosker, Maarten; de Ree, Joppe

    2010-01-01

    Civil wars critically hinder a country's development process. This paper shows that civil wars can also have severe international consequences. Anecdotal evidence highlights that civil wars sometimes spill over international boundaries. Using a more rigorous econometric approach we provide evidence that conflict spillovers are indeed quantitatively very important. Also, they are context dependent. Ethnicity in particular plays a key role in the spread of civil war. Only ethnic civil wars spil...

  3. Trade Liberalization and Trade Tax Revenues in African Countries

    OpenAIRE

    Longoni, E

    2009-01-01

    We empirically investigate the e®ect of trade liberalization on trade tax revenues applying panel-data methods to a large sample of African countries from the period 1970-2000. The goal of this paper is to determine whether controlling for macroeconomic features of African economies and taking into account the existence of political constraints that might either support or weaken the power of the trade reform, a change in trade policy has a positive or negative e®ect on trade tax revenues. We...

  4. Life History Trade-offs

    NARCIS (Netherlands)

    Smallegange, I.M.; Kliman, R.M.

    2016-01-01

    Trade-offs play a central role in life history theory. This article explains why they exist, how they arise, how they can be measured, and briefly discusses their evolution. Three important trade-offs are discussed in detail: the trade-off between current reproduction and survival, between current

  5. Redes transnacionales, antiperonismo y Guerra Fría: Los orígenes de la Asociación Argentina por la Libertad de la Cultura Transnational networks, anti-Peronism and Cold War: the origins of the Asociación Argentina por la Libertad de la Cultura

    Directory of Open Access Journals (Sweden)

    Jorge Nállim

    2012-06-01

    Full Text Available El artículo explora los procesos locales y transnacionales que llevaron a la creación de la Asociación Argentina por la Libertad de la Cultura en diciembre de 1955. La Asociación era la filial del Congreso por la Libertad de la Cultura, fundado en 1950 en Berlín como parte de la estrategia cultural estadounidense durante la Guerra Fría. Basado en el análisis de un amplio espectro de publicaciones e instituciones, el texto rastrea la densa red de relaciones personales, institucionales, ideológicas y políticas entre los intelectuales antiperonistas argentinos y entre ellos y sus colegas extranjeros que llevaron a la fundación de la Asociación. Estas relaciones, desarrolladas desde la década de 1930 y profundizadas por la experiencia peronista y la Guerra Fría, fueron facilitadas por trayectorias y temáticas comunes tales como la defensa de la libertad política y cultural y de la superioridad del mundo occidental, el antifascismo y el anticomunismo. El análisis, parte de un proyecto más amplio en curso, sienta las bases para el estudio futuro de la historia de la Asociación y de las redes intelectuales anticomunistas en América Latina durante la Guerra Fría.This article explores the local and transnational processes that resulted in the creation of the Asociación Argentina por la Libertad de la Cultura in December, 1955. The Asociación was a branch of the Congress for Cultural Freedom, which was created in Berlin in 1950 as part of the American cultural strategy during the Cold War. Based on the analysis of a broad group of publications and institutions, the text traces the dense network of personal, institutional, ideological and political relations among the anti-Peronist Argentine intellectuals and between them and their European colleagues that led to the creation of the Asociación. Those relations, developed since the 1930s and deepened by the Peronist experience and the Cold War, were facilitated by common trajectories

  6. Rockets in World War I

    Science.gov (United States)

    2004-01-01

    World War I enlisted rockets once again for military purposes. French pilots rigged rockets to the wing struts of their airplanes and aimed them at enemy observation balloons filled with highly inflammable hydrogen.

  7. Algeria: An Uncivilized Civil War

    National Research Council Canada - National Science Library

    Robling, Terry

    1995-01-01

    .... Moderates on both sides are seeking peace from the undeclared civil war that resulted when the military-backed regime canceled elections that Islamic fundamentalists were certain to win in 1992...

  8. Environmental consequences of nuclear war

    Energy Technology Data Exchange (ETDEWEB)

    Toon, Owen B. [Department of Atmospheric and Oceanic Sciences, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado (United States); Robock, Alan [Department of Environmental Sciences, Rutgers University, New Brunswick, New Jersey (United States); Turco, Richard P. [Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, Los Angeles, California (United States)

    2014-05-09

    A regional war involving 100 Hiroshima-sized weapons would pose a worldwide threat due to ozone destruction and climate change. A superpower confrontation with a few thousand weapons would be catastrophic.

  9. The Korean War and the post-war prisoners of war (POW) regime, 1945-1956

    OpenAIRE

    Wylie, Neville; Crossland, James

    2015-01-01

    This paper examines the framework for the treatment of prisoners of war that emerged after 1945. It focuses on one of the key elements of the post-war prisoner of war (POW) regime, the role of neutral bodies – state authorities acting as ‘protecting powers’ or humanitarian agencies such as the International Committee of the Red Cross – in supervising the implementation of the 1949 POW convention. It examines the importance of neutral supervision for the POW regime, and shows how the events of...

  10. Economic Liberalization and Trade Relations between Mexico and China

    Directory of Open Access Journals (Sweden)

    Roberto Hernández Hernández

    2012-01-01

    Full Text Available This paper analyses the commercial relationship between Mexico and China in the context of the liberalization policies enacted by both countries. The policies were developed in the framework of economic globalization and worldwide strategic military power, starting from the end of the Cold War. Against this backdrop, the paper analyses the current trade relations between China and Mexico. The text emphasizes the public policy of both countries, presenting similarities and asymmetries along with the results of their commercial policies and specific business practices.

  11. The Angolan Proxy War: A Study of Foreign Intervention and Its Impact on War Fighting

    National Research Council Canada - National Science Library

    Bissonnette, Brian

    2008-01-01

    .... This study examines the influence of foreign intervention on war fighting during the Angolan Civil War and analyzes how the various levels of support impacted the successes and failures of the internal warring factions...

  12. Trade union revitalisation

    DEFF Research Database (Denmark)

    Ibsen, Christian Lyhne; Tapia, Maite

    2017-01-01

    In this article, we review and assess research on the role of trade unions in labour markets and society, the current decline of unions and union revitalisation. The review shows three main trends. First, trade unions are converging into similar strategies of revitalisation. The ‘organising model...... their traditional strongholds of collective bargaining and corporatist policy-making. Second, research has shown that used strategies are not a panacea for success for unions in countries that pearheaded revitalisation. This finding points to the importance of supportive institutional frameworks if unions...... are to regain power. Third, especially in Anglo-Saxon countries, unions are building external coalitions with other social movements, including across borders, to compensate for the loss of power resources that were tied to national collective bargaining and policy-making. Research has shown that unions, even...

  13. The Carbon Trading Game

    Energy Technology Data Exchange (ETDEWEB)

    Fouquet, Roger [Environmental Policy and Management Group, Imperial College London, Prince Consort Road, London SW7 2BP (United Kingdom)

    2003-12-01

    In response to the Kyoto Protocol, an international market for carbon dioxide tradable permits is likely to be created. Two of the key issues involved are explaining the concepts of tradable permits to industrialists, policy-makers and the man on the street, and anticipating how the market will evolve. A simple game of the market for carbon dioxide tradable permits has been developed and used that can help deal with both issues. As a pedagogical tool, this game benefits from simplicity (just a few pieces of paper are needed) and enables students to grasp the concepts and remember them through the intensity and fun of a trading 'pit'. The experiences also provide substantial insights into the evolution of the carbon dioxide permit market, particularly related to the evolution of trade volume, permit prices and country strategies.

  14. The Nature of War Theory

    Science.gov (United States)

    2011-03-10

    natural selection is the finches of the Galapagos Islands. Simply, those birds, adept at obtaining seeds or those able to get new kinds of foods, were...favorable mutation passed from generation to generation.16 The finches of the Galapagos Islands are an example of evolution at the individual-level... Penguin Books, 1987), Chapter 13. 13Clausewitz, On War, 89. 14Fuller, The Foundations of the Science of War, 66. 15Richard P. Brennan, Dictionary of

  15. Afterword: war on the senses

    OpenAIRE

    Bourke, Joanna

    2017-01-01

    Book synopsis: Modern Conflict and the Senses investigates the sensual worlds created by modern war, focusing on the sensorial responses embodied in and provoked by the materiality of conflict and its aftermath. The volume positions the industrialized nature of twentieth-century war as a unique cultural phenomenon, in possession of a material and psychological intensity that embodies the extremes of human behaviour, from total economic mobilization to the unbearable sadness of individual loss...

  16. War veterans as peace builders

    OpenAIRE

    Kostić Novica

    2010-01-01

    In the period from 1991. to 1999. over 1500000 people in former Yugoslavia were members of dozens military formations that participated in the war in different manners and with various motives. These persons have actively contributed to the tragedy caused by war, that was and for some time will be the most important factor of social and personal relationships between individuals and the nations in the member states of former Yugoslavia. They are now left on their own and exposed to manipulati...

  17. Counterfeit-Product Trade.

    OpenAIRE

    Grossman, Gene M; Shapiro, Carl

    1988-01-01

    We analyze a two-country model of trade in both legitimate and counterfeit products. Domestic firms own trademarks and establish reputations for delivering high-quality products in a steady-state equilibrium. Foreign suppliers export legitimate low-quality merchandise and counterfeits of domestic brand-name goods. Heterogeneous home consumers either purchase low-quality imports or buy brand-name products, rationally expecting some degree of counterfeiting of the latter. We characterize a coun...

  18. Counterfeit Product Trade

    OpenAIRE

    Grossman, Gene

    1986-01-01

    We analyze a two-country model of trade in both legitimate and counterfeit products. Domestic firms own trademarks and establish reputations for delivering high-quality products in a steady-state equilibrium. Foreign suppliers export legitimate low-quality merchandise and counterfeits of domestic brand-name goods. Heterogeneous home consumers either purchase low-quality imports or buy brand-name products, rationally expecting some degree of counterfeiting of the latter. We characterize a coun...

  19. Gender Inequality and Trade

    OpenAIRE

    Busse, Matthias; Spielmann, Christian

    2005-01-01

    The paper empirically explores the international linkages between gender inequality and trade flows of a sample of 92 developed and developing countries. The focus is on comparative advantage in labour-intensive manufactured goods. The results indicate that gender wage inequality is positively associated with comparative advantage in labour-intensive goods, that is, countries with a larger gender wage gap have higher exports of these goods. Also, gender inequality in labour force activity rat...

  20. Three wars that never happened.

    Science.gov (United States)

    Russell, W M S

    2002-01-01

    This article discusses three serious wars that were averted and the three men who averted them. In 1478-79, Pope Sixtus IV's hatred of the Medici culminated in aggressive war against Florence, supported by his powerful ally King Ferrante of Naples. The initial stags of this war were indecisive, but it was about to become much more serious, probably involving all the Italian states and possibly meaning the total destruction of Florence. Lorenzo il Magnifico sailed to Naples, convinced Ferrante this more serious war was against his interests and obtained a generous peace. In 1861, the British Government responded to the boarding of a British ship by a vessel of the American North with a peremptory letter. Albert, Prince Consort, though dying of typhoid fever amended the letter to save Lincoln's face and thus averted war with the North. From 1871 to 1890, Otto von Bismarck worked for a stable peace between the European powers to be attained by arranging meetings of most or all of them to accustom them to solving disputes by negotiation. Two such meetings in Berlin secured 36 years of peace between the powers, despite many disputes, and in particular averted war for possessions in Africa, which could have involved them all.

  1. International Trade of Biofuels (Brochure)

    Energy Technology Data Exchange (ETDEWEB)

    2013-05-01

    In recent years, the production and trade of biofuels has increased to meet global demand for renewable fuels. Ethanol and biodiesel contribute much of this trade because they are the most established biofuels. Their growth has been aided through a variety of policies, especially in the European Union, Brazil, and the United States, but ethanol trade and production have faced more targeted policies and tariffs than biodiesel. This fact sheet contains a summary of the trade of biofuels among nations, including historical data on production, consumption, and trade.

  2. Resilience of the global virtual water trade system

    Science.gov (United States)

    D'Odorico, P.; Laio, F.; Ridolfi, L.; Carr, J. A.

    2011-12-01

    The food security of human societies partly depends on the trade and transport of food commodities around the world. The trade of these goods is associated with a virtual exchange of the water needed for their production. The intensification of international trade has recently led to a globalization of water resources through a network of virtual water trade. We investigate the resilience of the virtual water network and the societal ability to cope with droughts and water stress conditions in a world of globalized water resources. Specifically, we evaluate the effect of the removal of vertices from the virtual water network, due to the choice or inability of a vertex to participate in the import and export of virtual water (e.g., embargo, autarchy, or other economical or environmental reasons). The resilience of the virtual water network is assessed by calculating changes in the average virtual flow between pairs of vertices and the emergence or intensification of water deficit conditions as a function of the number of vertices removed. When coupled with a model of population growth, this analysis sheds light on the fragility of the food security system and of the underlying virtual water network.

  3. Illegal markets, human trade and transnational organised crime

    Directory of Open Access Journals (Sweden)

    Nikolić-Ristanović Vesna Ž.

    2003-01-01

    Full Text Available In this paper the author explores, focusing largely on the example of the Balkans, the connection between the expansion of neoliberal market economy and war, and related to it the growth of illegal markets and the shadow economy, on one hand, and the victimisation by human trafficking, on the other. By locating human trade within expanding local and global illegal markets, the author is arguing that, without taking into consideration wider social contexts, which create structural incentives for illegal markets and transnational organised crime, we can hardly understand the causes, let alone build effective strategies to combat and prevent it. Consequently, on the basis of the analyses of human trade as a form of both transnational organised crime and illegal markets, some strategies (short-term and long-term for the prevention and control of human trafficking on both the micro and macro level are suggested.

  4. Israeli Deterrence And the 2nd Lebanon War

    Science.gov (United States)

    2017-04-06

    war, in a television interview from 27/08/06 on the Lebanese NTV network, Nasrallah admitted he would not have kidnapped the soldiers had he known it...government criticized the kidnapping and refused to take responsibility for its implementation.108 Also, major Arab states, Egypt, Jordan and Saudi Arabia...Another explanation is that Hezbollah never intended to do more than kidnap several Israeli soldiers to exchange for Hezbollah prisoners held by Israel

  5. The continental free trade area

    DEFF Research Database (Denmark)

    Sandrey, Ron; Jensen, Hans Grinsted

    The Trade Law Centre (tralac) has recently capitalised upon the prerelease Version 9.2 of the Global Trade Analysis Project (GTAP) database and the recent excellent data sets from the World Bank and other publishing quality data on trade barriers across the African continent. It undertook a series...... of simulations examining regional integration and intra-African trade barrier reductions. The results for tariff elimination on intra-African trade are promising. But the real news is in confirming that these barriers are not as significant as the various trade-related barriers except for tariffs. Especially...... outcome from all three are likely to be cumulative and generate very large gains to Africa. The overall results from especially time-in-transit costs support the current emphasis on projects such as the World Trade Organisation (WTO) infrastructural supports to Africa. In addition, the World Bank...

  6. International red meat trade.

    Science.gov (United States)

    Brester, Gary W; Marsh, John M; Plain, Ronald L

    2003-07-01

    The maturation of the US beef and pork markets and increasing consumer demands for convenience, safety, and nutrition suggests that the beef and pork industries must focus on product development and promotion. New marketing arrangements are developing that help coordinate production with consumer demands. The relative high levels of incomes in the United States are likely to increase the demands for branded products rather than increase total per capita consumption. Foreign markets represent the greatest opportunity for increased demand for commodity beef and pork products. Increasing incomes in developing countries will likely allow consumers to increase consumption of animal-source proteins. Real prices of beef and pork have declined substantially because of sagging domestic demand and increasing farm-level production technologies. Increasing US beef and pork exports have obviated some of the price declines. Pork attained a net export position from a quantity perspective in 1995. The United States continues to be a net importer of beef on a quantity basis but is close to becoming a net exporter in terms of value. By-products continue to play a critical role in determining the red meat trade balance and producer prices. The United States, however, must continue to become cost, price, and quality competitive with other suppliers and must secure additional market access if it is to sustain recent trade trends. Several trade tensions remain in the red meat industry. For example, mandated COOL will undoubtedly have domestic and international effects on the beef and pork sectors. Domestically, uncertainty regarding consumer demand responses or quality perceptions regarding product origin, as well as added processor-retailer costs will be nontrivial. How these factors balance out in terms of benefits versus costs to the industry is uncertain. From an international perspective, some beef and pork export suppliers to the United States could view required labeling as a

  7. Level of environmental threat posed by horticultural trade in Cactaceae.

    Science.gov (United States)

    Novoa, Ana; Le Roux, Johannes J; Richardson, David M; Wilson, John R U

    2017-10-01

    Ornamental horticulture has been identified as an important threat to plant biodiversity and is a major pathway for plant invasions worldwide. In this context, the family Cactaceae is particularly challenging because it is considered the fifth most threatened large taxonomic group in the world; several species are among the most widespread and damaging invasive species; and Cactaceae is one of the most popular horticultural plant groups. Based on the Convention on International Trade in Endangered Species of Wild Flora and Fauna and the 11 largest online auction sites selling cacti, we documented the international cactus trade. To provide an in-depth look at the dynamics of the industry, we surveyed the businesses involved in the cactus trade in South Africa (a hotspot of cactus trade and invasions). We purchased seeds of every available species and used DNA barcoding to identify species to the genus level. Although <20% of this trade involved threatened species and <3% involved known invasive species, many species were identified by a common name. However, only 0.02% of the globally traded cacti were collected from wild populations. Despite a large commercial network, all South African imports (of which 15% and 1.5% were of species listed as threatened and invasive, respectively) came from the same source. With DNA barcoding, we identified 24% of the species to genus level. Based on our results, we believe that if trade restrictions are placed on the small proportion of cacti that are invasive and there is no major increase in harvesting of native populations, then the commercial trade in cactus poses a negligible environmental threat. However, there are currently no effective methods for easily identifying which cacti are traded, and both the illicit harvesting of cacti from the wild and the informal trade in invasive taxa pose on-going conservation challenges. © 2017 Society for Conservation Biology.

  8. Impact of war on American adolescents.

    Science.gov (United States)

    Hardin, Sally Brosz; Hayes, Eileen; Cheever, Kerry H; Addy, Cheryl

    2003-01-01

    The impact of the Persian Gulf war on adolescents in Columbia, Charleston, and Sumter, SC. Four semiannual surveys measured adolescents' exposure to and evaluations of the Persian Gulf war, and the relationship between this exposure and mental distress. Of the sample, 814 (65.9%) reported being distressed by the war and 849 (69%) reported feeling better after the war ended. More than half the sample had a friend or relative sent to the war (n = 725, 58.8%), and of these, 458 were African American. Nine percent (n = 111) of the sample had a mother, father, or both a mother and a father in the war. There was a positive correlation between adolescents' ratings on the Negative Impact of War Scores and Mental Distress Scores despite the easy victory and public support for the war in the United States. Females and African Americans viewed the war more negatively than did Caucasian males.

  9. China–Burma Geopolitical Relations in the Cold War

    Directory of Open Access Journals (Sweden)

    Hongwei FAN

    2012-01-01

    Full Text Available This paper explores the historical role of geography in the Sino–Burmese relationship in the context of the Cold War, both before and after the Chinese–American détente and rapprochement in the 1970s. It describes Burma’s fear and distrust of China throughout the Cold War, during which it maintained a policy of neutrality and non-alignment. Burma’s geographic location, sandwiched between its giant neighbours India and China, led it to adopt a realist paradigm and pursue an independent foreign policy. Charac-terizing China’s threat to Burmese national security as “grave” during its period of revolutionary export, the article notes that Burma was cowed into deference and that it deliberately avoided antagonizing China. It also looks at the history of China’s attempts to break out of U.S. encirclement after the Korean War and its successful establishment of Burma as an important buffer state. After the U.S.–China rapprochement in 1972, however, Bur-ma’s geographical significance for Beijing declined. In this context, Burma’s closed-door policy of isolation further lessened its strategic importance for China. Since 1988, however, Burma’s strategic importance to China has been on the rise once again, as it plays a greater role as China’s land bridge to the Indian Ocean and in its energy security and expansion of trade and exports.

  10. Foreign Banks in the United States Since World War II: A Useful Fringe

    OpenAIRE

    Adrian E. Tschoegl

    2000-01-01

    Foreign banks have had an organizational presence in the United States since the early 1800s. Until after World War II, the foreign banks' presence was generally limited. They engaged in trade finance, and in some cases ethnic banking. The growth really dates to the period from the mid-1960s to 1990. Banks are service firms, and their growth reflects a demand for their services. This growth in demand is itself the consequence of the growth of four other activities: trade, the Eurodollar marke...

  11. World War I: an air war of consequence.

    Science.gov (United States)

    Hallion, Richard P

    2014-06-01

    On December 17, 1903, the brothers Wilbur and Orville Wright flew the world's first successful airplane, following this with the first military airplane in 1908. (The 1908 Flyer was built by the brothers in response to a 1907 requirements specification for a 2-place aircraft capable of flying at 40 mph and able to be broken down and transported in a horse-drawn wagon. Technically, since it crashed during its demonstration program and was not formally delivered to the Army, it never became Army property. But the trials had been so impressive that the Army ordered a second, delivered in 1909.) Just six years later, Europe erupted in a general war. Often portrayed as a sideshow to the war on land and sea, the air war heralded the advent of mechanized warfare, the airplane being one of four great technological advances--the submarine, the tank, and radio communication--that, together, revolutionized military affairs. Aircraft reconnaissance influenced the conduct of military operations from the war's earliest days, and airborne observers routinely governed the fall of artillery barrages, crucially important in an artillery-dominant war. Copyright © 2014. Published by Elsevier Ltd.

  12. Seven Deadliest Network Attacks

    CERN Document Server

    Prowell, Stacy; Borkin, Mike

    2010-01-01

    Do you need to keep up with the latest hacks, attacks, and exploits effecting networks? Then you need Seven Deadliest Network Attacks. This book pinpoints the most dangerous hacks and exploits specific to networks, laying out the anatomy of these attacks including how to make your system more secure. You will discover the best ways to defend against these vicious hacks with step-by-step instruction and learn techniques to make your computer and network impenetrable. Attacks detailed in this book include: Denial of Service War Dialing Penetration "Testing" Protocol Tunneling Spanning Tree At

  13. Links between global meat trade and organic river pollution

    Science.gov (United States)

    Wen, Yingrong; Schoups, Gerrit; van de Giesen, Nick

    2017-04-01

    Rising demand of meat boosts livestock farming intensification. Due to international meat trade, the environmental costs of production are becoming increasingly separated from where the meat is consumed. However, little is known about the impact of trade on the environment for both importers and exporters. Combining multi-scale (national, regional and gridded) data, we present a new method to quantify the impacts of international meat trade on global river organic pollution. We computed spatially distributed organic pollution in global river networks with and without meat trade, where the without-trade scenario assumes that meat imports are replaced by local production. Our analysis indicates high potential savings of livestock population and pollutants production at the global scale due to the international meat trade. The spatially detailed analysis shows that current trade contributes to organic pollution reductions in meat importing regions, especially in rich nations. The deterioration of river water quality, especially in developing regions, points to an urgent need for affordable infrastructure and technology development and wastewater solutions.

  14. The Antiquities Trade in Egypt 1880-1930

    DEFF Research Database (Denmark)

    Hagen, Frederik Norland; Ryholt, Kim

    these objects came to be here. The book presents the first in-depth analysis of this market during its “golden age” in Egypt in the late 19th and early 20th Century. It is primarily based on the archival material of the Danish Egyptologist H. O. Lange (1863-1943) who, during two prolonged stays in Egypt (1899...... antiquities trade. The book looks at the laws governing trade and export, both in theory and practice, and the changes over time. The practicalities of the trade are described: its seasons, the networks of supply, the various methods available for acquiring antiquities, and the subsequent routes......-chapels. The final part of the book contains a list, with short biographies, of over 250 dealers active in Egypt from the 1880s until the abolishment of the trade in 1983. Most of them are described here in detail for the first time....

  15. Epidemiology of violence and war.

    Science.gov (United States)

    Cvjetanović, B

    2000-06-01

    The magnitude of the threat that violence and war pose to the health, the quality of life, and the very survival of humanity is obvious. A number of scientific disciplines have provided, each through its own methodology, insights into the causation, genesis, and dynamics of violence and war. Although epidemiological and psychological methodologies received priority, the multidisciplinary approach to this problem seems to be the most appropriate. This essay attempts to approach holistically the study of epidemiology of violence and war and the ways of preventing these severe problems of the contemporary society. Conceptual models of the causative mechanisms and dynamics of violence and war, mapping the various psychic, social, and environmental factors, are presented. These models, besides advancing abstract ideas, also provide a concrete framework for determining and exploring the interactions and dynamics of the factors and processes which lead to violence and war. The types of interventions outlined for control and prevention are intended to make an impact upon "critical points" within the dynamics of the process which produces violence and war, and are conceived to be implemented on both the national and international level. The importance of family, community, and school influences is considered, but the role of international organizations, including the United Nations, and other governmental and non-governmental organizations is also stressed. Discussion is focused on the factors which favour peace and hamper aggression, on "internationalization" and global society versus xenophobia and nationalism. The conclusions state that there is sufficient knowhow to devise and implement a reasonable and effective international programme for the control and prevention of violence and war, provided there is adequate public and political willingness and support.

  16. Trade Policy Preferences and the Factor Content of Trade

    DEFF Research Database (Denmark)

    Jäkel, Ina Charlotte; Smolka, Marcel

    This paper provides a theoretical and empirical analysis of public opinion towards free trade, investigating cleavages both between and within countries. We study the distributional effects of trade policy in a neoclassical economy with not just two, but many input factors in production. We...... demonstrate that the factor price changes induced by trade policy are negatively correlated with the factor content of free trade (and therefore factor abundance). Using large-scale international survey data, we test whether these predicted distributional effects are reflected in the trade policy preferences...... of workers with different labor market skills. In order to isolate the effects of factor abundance from other skill-related confounding factors, we employ a within-skill-group estimator that exploits the cross-country variation in the factor content of free trade. In line with theory, the data show...

  17. Trade and migration: the case of NAFTA.

    Science.gov (United States)

    Martin, P L

    1993-01-01

    "This article provides background information on NAFTA [the North American Free Trade Agreement], reviews data on its economic effects, and summarizes studies and projections of NAFTA's likely effects on Mexico-to-U.S. migration. Migration factors (demand-pull, supply-push, and networks) are examined to determine whether NAFTA's effect on economic development particularly in the border areas will accelerate or retard migration. The conclusion is that NAFTA is likely to produce a temporary migration hump, slightly raising already high migration levels in the 1990s, but reducing the volume of Mexico-to-U.S. migration that would otherwise occur over subsequent decades." excerpt

  18. Aid for trade and the political economy of trade liberalization

    OpenAIRE

    Koopmann, Georg; Hoekstra, Ruth

    2010-01-01

    The Aid for Trade (AfT) initiative has gained much popularity since its launch at the World Trade Organization's Ministerial Conference in 2005, and there are ongoing discussions on its effectiveness and potential to improve the integration of developing countries into the world economy. This paper contributes to the debate by analyzing AfT in a political economy context. We find that the delivery of AfT is a precondition for trade reform in developing countries, as well as for trade liberali...

  19. Act locally, trade globally. Emissions trading for climate policy

    Energy Technology Data Exchange (ETDEWEB)

    none

    2005-07-01

    Climate policy raises a number of challenges for the energy sector, the most significant being the transition from a high to a low-CO2 energy path in a few decades. Emissions trading has become the instrument of choice to help manage the cost of this transition, whether used at international or at domestic level. Act Locally, Trade Globally, offers an overview of existing trading systems, their mechanisms, and looks into the future of the instrument for limiting greenhouse gas emissions. Are current markets likely to be as efficient as the theory predicts? What is, if any, the role of governments in these markets? Can domestic emissions trading systems be broadened to activities other than large stationary energy uses? Can international emissions trading accommodate potentially diverse types of emissions targets and widely different energy realities across countries? Are there hurdles to linking emissions trading systems based on various design features? Can emissions trading carry the entire burden of climate policy, or will other policy instruments remain necessary? In answering these questions, Act Locally, Trade Globally seeks to provide a complete picture of the future role of emissions trading in climate policy and the energy sector.

  20. The Increasing Interdependence between Trade in Goods and Trade in Services. Recent Trends in Global Services Flows

    Directory of Open Access Journals (Sweden)

    Agnes Ghibuțiu

    2013-10-01

    Full Text Available This paper aims to highlight some of the recent developments in global trade in services. It sets out three main objectives. Firstly, to analyse the increasing interdependence between global trade flows in goods and services against the background of rapid expansion of global production networks (GPN managed by transnational corporations (TNCs - the dominant form of organization of global production and trade. It also points out that when international trade is measured in terms of value added instead by means of conventional statistics based on gross flows, services play a far more important role in global trade. Secondly, the paper aims to capture the dynamics of international trade flows in services at the regional level and emphasize the power shift from developed countries towards the developing and emerging ones. Thirdly, it intends to shed light on the important changes that have occurred in the structure of global trade in services under the impact of GPN, pointing to the rapid increase in modern services at the expense of traditional services, such as tourism and transport. The last part of the paper concludes.

  1. Degree-strength correlation reveals anomalous trading behavior.

    Science.gov (United States)

    Sun, Xiao-Qian; Shen, Hua-Wei; Cheng, Xue-Qi; Wang, Zhao-Yang

    2012-01-01

    Manipulation is an important issue for both developed and emerging stock markets. Many efforts have been made to detect manipulation in stock markets. However, it is still an open problem to identify the fraudulent traders, especially when they collude with each other. In this paper, we focus on the problem of identifying the anomalous traders using the transaction data of eight manipulated stocks and forty-four non-manipulated stocks during a one-year period. By analyzing the trading networks of stocks, we find that the trading networks of manipulated stocks exhibit significantly higher degree-strength correlation than the trading networks of non-manipulated stocks and the randomized trading networks. We further propose a method to detect anomalous traders of manipulated stocks based on statistical significance analysis of degree-strength correlation. Experimental results demonstrate that our method is effective at distinguishing the manipulated stocks from non-manipulated ones. Our method outperforms the traditional weight-threshold method at identifying the anomalous traders in manipulated stocks. More importantly, our method is difficult to be fooled by colluded traders.

  2. 78 FR 7752 - Trade Mission to Egypt and Kuwait

    Science.gov (United States)

    2013-02-04

    ... trade associations representing companies interested in expansion into the North African and Middle... transmission lines, turbine generator units with associated equipment, and vibration dampers. The US&FCS will... Said Port: includes a duty free zone area, road and rail networks, a power station, communication...

  3. Trade and Industrial Policy Strategies (TIPS) - Phase III | IDRC ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    As a result, TIPS will broaden its thematic agenda to include, in addition to trade analysis, the Real Economy Study and a program of work on the economics of education. Recently, TIPS successfully competed with other policy institutions in Southern Africa to host the new Southern African Development Research Network ...

  4. Proximate Spaces - The Rise of Informal Trade between Ghana and ...

    African Journals Online (AJOL)

    Relying on evidence recently collated in the Afl ao Border between Ghana and Togo, and using social exchange theory as a guiding theoretical framework, my task in this article is to probe contextual dynamics underpinning the interface between regional economic bodies such as ECOWAS; and informal trading networks ...

  5. Trade policy and public goods.

    Science.gov (United States)

    Loos, Gregory P

    2003-01-01

    The World Trade Organization (WTO) was formed in 1994 as the first multilateral trade organization with enforcement authority over national governments. A country's domestic standards cannot be more restrictive than international standards for trade. WTO seeks to "harmonize" individual domestic policies into uniform global standards and encompasses trade-related aspects of health, public safety, and environmental protection. These issues are transnational and pose enormous challenges to traditional governance structures. Most governments are not equipped to manage problems that transcend their borders. Moreover, international governance in social issues--with the possible exception of public health--is still in its infancy. Many groups are concerned that local public interests will be subjugated to global corporate interests. The article looks at the social ramifications of world trade policy and concludes that world trade must be balanced with sustainable environments and human health.

  6. Fair trade international surrogacy.

    Science.gov (United States)

    Humbyrd, Casey

    2009-12-01

    Since the development of assisted reproductive technologies, infertile individuals have crossed borders to obtain treatments unavailable or unaffordable in their own country. Recent media coverage has focused on the outsourcing of surrogacy to developing countries, where the cost for surrogacy is significantly less than the equivalent cost in a more developed country. This paper discusses the ethical arguments against international surrogacy. The major opposition viewpoints can be broadly divided into arguments about welfare, commodification and exploitation. It is argued that the only valid objection to international surrogacy is that surrogate mothers may be exploited by being given too little compensation. However, the possibility of exploitation is a weak argument for prohibition, as employment alternatives for potential surrogate mothers may be more exploitative or more harmful than surrogacy. It is concluded that international surrogacy must be regulated, and the proposed regulatory mechanism is termed Fair Trade Surrogacy. The guidelines of Fair Trade Surrogacy focus on minimizing potential harms to all parties and ensuring fair compensation for surrogate mothers.

  7. Trade Policy of Transition Economics

    OpenAIRE

    Moraga-Gonzalez, José Luis; Viaene, Jean-Marie

    2000-01-01

    textabstractThis paper focuses on ignored issues regarding the impact of trade reforms in transition economies. These economies are primarily characterized by a low quality of their products, large depreciations of their currencies, and a high degree of government intervention in economic activity. These elements are embedded in a duopoly model of vertical product differentiation and international trade. First, we show that trade liberalization in transition economies reduces the output of lo...

  8. Trade facilitation: a conceptual review

    OpenAIRE

    Grainger, Andrew

    2011-01-01

    With falling tariff levels, it is probably not surprising that the non-tariff area and trade facilitation, in particular, are receiving growing attention. Apart from the World Trade Organization (WTO), trade facilitation is a subject of substance within a wide range of international organizations including several United Nations (UN)-type bodies, the World Customs Organization (WCO) as well as those concerned with economic development, supply chain security, and sector-specific issues such as...

  9. IN A GLOBALIZED WORLD TRADE

    OpenAIRE

    Daniela Ditescu

    2012-01-01

    Trade and globalization have brought many benefits to countries and their citizens because they allow countries access to more efficient production, increased labor productivity, supported extending the knowledge and new technologies planetary scale, and rich assortment of products to which population access. Also, through the multilateral trading system has been a significant reduction of customs protectionism, have mitigated the effects of non-tariff barriers, trade policy measures have bec...

  10. Harmonic Patterns in Forex Trading

    OpenAIRE

    Nemček, Sebastian

    2013-01-01

    This diploma thesis is committed to examination of validity of Harmonic Patterns in Forex trading. Scott Carney described existing and introduced new Harmonic Patterns in 1999 in his book Harmonic Trader. These patterns use the Fibonacci principle to analyze price action and to provide both bullish and bearish trading signals. The goal of this thesis is to find out whether harmonic trading strategy on selected pairs is profitable in FX market, which patterns are the most profitable and what i...

  11. Understanding the conventional arms trade

    Science.gov (United States)

    Stohl, Rachel

    2017-11-01

    The global conventional arms trade is worth tens of billions of dollars every year and is engaged in by every country in the world. Yet, it is often difficult to control the legal trade in conventional arms and there is a thriving illicit market, willing to arm unscrupulous regimes and nefarious non-state actors. This chapter examines the international conventional arms trade, the range of tools that have been used to control it, and challenges to these international regimes.

  12. AMERICAN BUSINESS AND THE CHINA TRADE EMBARGO IN THE 1950S

    Directory of Open Access Journals (Sweden)

    Kailai Huang

    2001-01-01

    Full Text Available The Chinese Communist revolution and the Korean War turned U.S.-China commercial relations into a political issue inseparable from the question of diplomatic recognition. The American business community supported the U.S. policy of trade embargo. After some American allies relaxed the China trade control system in 1957, many business people asked for a reexamination of the embargo policy. Their effort failed to achieve concrete change, for they could not overcome the strong opposition from the unsympathetic government officials and China lobby. The little economic inducement presented by the China market also discouraged American business from vigorously pursuing the issue.

  13. War rape, natality and genocide.

    Science.gov (United States)

    Schott, Robin May

    2011-01-01

    Feminist philosophy can make an important contribution to the field of genocide studies, and issues relating to gender and war are gaining new attention. In this article I trace legal and philosophical analyses of sexual violence against women in war. I analyze the strengths and limitations of the concept of social death—introduced into this field by Claudia Card—for understanding the genocidal features of war rape, and draw on the work of Hannah Arendt to understand the central harm of genocide as an assault on natality. The threat to natality posed by the harms of rape, forced pregnancy and forced maternity lie in the potential expulsion from the public world of certain groups—including women who are victims, members of the 'enemy' group, and children born of forced birth.

  14. Profile of Vietnam War Veterans (2015).

    Data.gov (United States)

    Department of Veterans Affairs — The Profile of Vietnam War Veterans uses the 2015 ACS to provide a view into the demographic characteristics and socioeconomic conditions of the Vietnam War Veteran...

  15. World War II Weather Record Transmittances

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — World War II Weather Record Transmittances are a record of the weather and meteorological data observed during World War II and transferred to the archive. It...

  16. Strategic Adaptation in the 'Long War'

    National Research Council Canada - National Science Library

    Boisselle, James C

    2007-01-01

    .... Also called the Global War on Terrorism, this struggle takes place in an international security environment that has evolved greatly since the end of the Cold War and that now includes many new actors...

  17. The World of WarsRisky systems

    DEFF Research Database (Denmark)

    Harste, Gorm

      The world of the future will not be one without wars. The many hopes we have about a future peace governed by a more or less confederal state will not make wars obsolete. Regular wars and irregular wars will continue and probably on different subjects than we are used to. The paper proposes...... that the form of war will be more about temporalities, i.e. fast interchanges or, rather, more risky protracted wars of attrition and exhaustion and less on tactical well defined territories. The West can neither dominate such wars nor establish one world that is ruled or even governed. The risk is that we have....... The "extreme 20th century" will have another history and another impact. Its extremes will be more extreme and its temporal bindings easier to observe. The much celebrated revolutions in military affairs will not dominate future war systems. Unipolarity is fading away. Kantian convergences may appear....

  18. The war in Iraq and international law

    National Research Council Canada - National Science Library

    SIMPSON, Gerry

    2005-01-01

    Illegality of the war on Iraq in 2003 - legal justifications offered for the war - self-defence - collective security under Chapter VII of the charter of the United Nations - doctrine of humanitarian...

  19. Former Prisoner of War Statistical Tracking System

    Data.gov (United States)

    Department of Veterans Affairs — The Former Prisoner of War (POW) Statistical Tracking System database is a registry designed to comply with Public Law 97-37, the Former Prisoner of War Benefits Act...

  20. Failed catharsis after the Second World War

    Directory of Open Access Journals (Sweden)

    Bijelić Biljana

    2002-01-01

    Full Text Available The Second World War is not relevant only in historical and political context. Its unsolved character is usually mentioned as one of the causes of the 1990 war. The after war policy of identity is especially relevant for today’s difficulties in consideration of collective responsibility and achieving reconciliation between communities which were in conflict. Croatian example of war crimes against Serbs in the Second World War is especially illustrative. However, that is only one of many Yugoslavs’ examples, where ethnic violence in after war period was overshadowed by general suffering from foreign occupants and local traitors in the Second World War. Instead of reassessment of existing ethnic and national identities, the process of reconciliation between Croatian and Serbian community after the Second World War was exhilarated with radical changes of collective identities.

  1. A War Within a War: Mizo rebels and the Bangladesh liberation struggle

    NARCIS (Netherlands)

    van Schendel, W.

    2015-01-01

    In 1971 a war led to the creation of Bangladesh. Instantly three narratives sprang up: the war as a national triumph, the war as betrayal and shame, and the war as a glorious campaign. Today more layered interpretations are superseding these ‘first-generation narratives’. Taking the case of

  2. Thinking war in the 21st century: Introducing non-state actors in Just war theory

    NARCIS (Netherlands)

    Noorda, H.A.

    2016-01-01

    “Thinking War in the 21st Century” develops a theory of war applicable to conflicts with non-state actors such as the “Islamic State”. Just war theory traditionally focuses on states as actors in war. This book moves beyond this narrow lens, arguing that active individual members of organized

  3. Ain't Gonna Study War No More? Explorations of War through Picture Books

    Science.gov (United States)

    Crawford, Patricia A.; Roberts, Sherron Killingsworth

    2009-01-01

    At the height of the Vietnam War, Down by the Riverside was transformed from a traditional folk song to a popular anti-war anthem. The raucous and repetitive chorus, "I ain't gonna study war no more ...," became a rallying cry for those who wanted nothing to do with the war and the pain and controversy that surrounded it. Although it seems…

  4. Climate Change Creates Trade Opportunity in India

    OpenAIRE

    Dinda, Soumyananda

    2013-01-01

    Climate change is an emerging challenge to developing economy like India however it also creates opportunity to grow through climate friendly goods production and new direction of trade. This paper focuses India’s potential export trade in climate friendly goods. The estimated gravity model is defined as the potential trade and potential trade gap is measured as how well a bilateral trade flow performs relative to the mean as predicted by the model. Potential trade gap means that actual trade...

  5. To the Question of Trade Facilitation Instruments

    OpenAIRE

    Aminat A. Bishenova

    2017-01-01

    In the present article issues of trade facilitation in the context of current trends in global trade (paperless trade, digital economy) are discussed and view is focused on tools that regulate trade facilitation mechanisms. In the conclusion author emphasizes that the trade facilitation policy should take into account not only current realities, but also the prospects for the development of international trade in order to timely and adequately respond to the challenges of global trade.

  6. Biclustering Learning of Trading Rules.

    Science.gov (United States)

    Huang, Qinghua; Wang, Ting; Tao, Dacheng; Li, Xuelong

    2015-10-01

    Technical analysis with numerous indicators and patterns has been regarded as important evidence for making trading decisions in financial markets. However, it is extremely difficult for investors to find useful trading rules based on numerous technical indicators. This paper innovatively proposes the use of biclustering mining to discover effective technical trading patterns that contain a combination of indicators from historical financial data series. This is the first attempt to use biclustering algorithm on trading data. The mined patterns are regarded as trading rules and can be classified as three trading actions (i.e., the buy, the sell, and no-action signals) with respect to the maximum support. A modified K nearest neighborhood ( K -NN) method is applied to classification of trading days in the testing period. The proposed method [called biclustering algorithm and the K nearest neighbor (BIC- K -NN)] was implemented on four historical datasets and the average performance was compared with the conventional buy-and-hold strategy and three previously reported intelligent trading systems. Experimental results demonstrate that the proposed trading system outperforms its counterparts and will be useful for investment in various financial markets.

  7. Greenhouse gas trading starts up

    Science.gov (United States)

    Showstack, Randy

    While nations decide on whether to sign on to the Kyoto Protocol on climate change, some countries and private companies are moving forward with greenhouse gas emissions trading.A 19 March report, "The Emerging International Greenhouse Gas Market," by the Pew Center on Global Climate Change, reports that about 65 greenhouse gas emissions trades for quantities above 1,000 metric tons of carbon dioxideequivalent already have occurred worldwide since 1996. Many of these trades have taken place under a voluntary, ad hoc framework, though the United Kingdom and Denmark have established their own domestic emissions trading programs.

  8. Hierarchical structure of Turkey's foreign trade

    Science.gov (United States)

    Kantar, Ersin; Deviren, Bayram; Keskin, Mustafa

    2011-10-01

    We examine the hierarchical structures of Turkey's foreign trade by using real prices of their commodity export and import move together over time. We obtain the topological properties among the countries based on Turkey's foreign trade during the 1996-2010 period by using the concept of hierarchical structure methods (minimal spanning tree, (MST) and hierarchical tree, (HT)). These periods are divided into two subperiods, such as 1996-2002 and 2003-2010, in order to test various time-window and observe the temporal evolution. We perform the bootstrap techniques to investigate a value of the statistical reliability to the links of the MSTs and HTs. We also use a clustering linkage procedure in order to observe the cluster structure much better. From the structural topologies of these trees, we identify different clusters of countries according to their geographical location and economic ties. Our results show that the DE (Germany), UK (United Kingdom), FR (France), IT (Italy) and RU (Russia) are more important within the network, due to a tighter connection with other countries. We have also found that these countries play a significant role for Turkey's foreign trade and have important implications for the design of portfolio and investment strategies.

  9. War, peace, and international politics. Fourth edition

    Energy Technology Data Exchange (ETDEWEB)

    Ziegler, D.W. (Western Washington Univ. (US))

    1987-01-01

    We must conclude that war remains a major problem in the last quarter of the twentieth century. My intention in this book is to introduce you to international relations by focusing on this problem. War is not the only problem of international relations, and so this book does not exhaust the field. But war is a central problem, and the possibility of resort to war affects other aspects of international relations. Whatever else we may look at, we cannot avoid looking at war. In fact, in looking at war, we will touch on most of the other subjects important in international relations. War is conflict among states carried on by their armed forces. To distinguish war from border skirmishes and other minor incidents we usually say it must reach a certain magnitude (for example, at least 1,000 soldiers killed in battle over a year). It would be ideal if we could systematically study all the wars in the last hundred years, but such an exhaustive study would be out of place here. At the same time we cannot discuss such subjects as the cause of war or proposals for preventing it without some knowledge about actual wars. We must test theories against historical facts. What follows in Part I is a somewhat detailed history of seven wars (or groups of wars) fought in the last hundred years. These include the most destructive of the wars World War I (1914-1918), World War II (1939-1945), and the Korean War (1950-1953). By way of background to World War I, we will look at the wars of German unification (1864-1871), which preceded and in some ways prepared the way for it. To balance our account, we will also look at several recent wars India and Pakistan (1971), Uganda and Tanzania (1978-1979), and Cambodia, Vietnam, and China (1978-1980). After looking at some of the major wars of the last hundred years, we will look at what people have the about the causes of war in general.

  10. Neurology in the Vietnam War.

    Science.gov (United States)

    Gunderson, Carl H; Daroff, Robert B

    2016-01-01

    Between December 1965 and December 1971, the United States maintained armed forces in Vietnam never less than 180,000 men and women in support of the war. At one time, this commitment exceeded half a million soldiers, sailors, and airmen from both the United States and its allies. Such forces required an extensive medical presence, including 19 neurologists. All but two of the neurologists had been drafted for a 2-year tour of duty after deferment for residency training. They were assigned to Vietnam for one of those 2 years in two Army Medical Units and one Air Force facility providing neurological care for American and allied forces, as well as many civilians. Their practice included exposure to unfamiliar disorders including cerebral malaria, Japanese B encephalitis, sleep deprivation seizures, and toxic encephalitis caused by injection or inhalation of C-4 explosive. They and neurologists at facilities in the United States published studies on all of these entities both during and after the war. These publications spawned the Defense and Veterans Head Injury Study, which was conceived during the Korean War and continues today as the Defense and Veterans Head Injury Center. It initially focused on post-traumatic epilepsy and later on all effects of brain injury. The Agent Orange controversy arose after the war; during the war, it was not perceived as a threat by medical personnel. Although soldiers in previous wars had developed serious psychological impairments, post-traumatic stress disorder was formally recognized in the servicemen returning from Vietnam. © 2016 S. Karger AG, Basel.

  11. Operational Lessons Learned in the Korean War

    Science.gov (United States)

    2011-12-01

    South Korea - and the Marines - From Extinction (NY, NY: Simon & Schuster Paperbacks, 2009), 28-9. 49 Michael Hickey, The Korean War (Woodstock & New...Untold Story of the Most Daring Covert Mission of the Korean War. NY, NY: Putnam Books, 2003. Malcom, Ben S. White Tigers : My Secret War in Korea...and the Marines - From Extinction . NY, NY: Simon & Schuster Paperbacks, 2009. Spurr, Russell. Enter the Dragon: China’s Undeclared War Against the

  12. The Great War and German Memory

    DEFF Research Database (Denmark)

    Leese, Peter

    2012-01-01

    Review essay on Jason Crouthamel, The Great War and German Memory. Society, Politics and Psychological Trauma, 1914-18 (2009) and Anton Kaes, Shell Shock Cinema: Weimar Culture and the Wounds of War (2009)......Review essay on Jason Crouthamel, The Great War and German Memory. Society, Politics and Psychological Trauma, 1914-18 (2009) and Anton Kaes, Shell Shock Cinema: Weimar Culture and the Wounds of War (2009)...

  13. Space technologies and the war in Iraq

    Science.gov (United States)

    Getsov, Petar

    The paper presents a description of the application of aerospace technologies during the war in Iraq. The specific instrumentation used by the USA and its allies in the field of communication, navigation, and control of weapons and ammunition to schedule war activities is presented. Conclusions are made on the ever growing application of space technologies in modern wars and their impact on the efficiency of decision-making at war times.

  14. Human Factors in Financial Trading: An Analysis of Trading Incidents.

    Science.gov (United States)

    Leaver, Meghan; Reader, Tom W

    2016-09-01

    This study tests the reliability of a system (FINANS) to collect and analyze incident reports in the financial trading domain and is guided by a human factors taxonomy used to describe error in the trading domain. Research indicates the utility of applying human factors theory to understand error in finance, yet empirical research is lacking. We report on the development of the first system for capturing and analyzing human factors-related issues in operational trading incidents. In the first study, 20 incidents are analyzed by an expert user group against a referent standard to establish the reliability of FINANS. In the second study, 750 incidents are analyzed using distribution, mean, pathway, and associative analysis to describe the data. Kappa scores indicate that categories within FINANS can be reliably used to identify and extract data on human factors-related problems underlying trading incidents. Approximately 1% of trades (n = 750) lead to an incident. Slip/lapse (61%), situation awareness (51%), and teamwork (40%) were found to be the most common problems underlying incidents. For the most serious incidents, problems in situation awareness and teamwork were most common. We show that (a) experts in the trading domain can reliably and accurately code human factors in incidents, (b) 1% of trades incur error, and (c) poor teamwork skills and situation awareness underpin the most critical incidents. This research provides data crucial for ameliorating risk within financial trading organizations, with implications for regulation and policy. © 2016, Human Factors and Ergonomics Society.

  15. World Trade Organisation (WTO): Trade rules/agreements and ...

    African Journals Online (AJOL)

    The GATT (General Agreement on Trade and Tariffs) rules of 1947 were seen as prejudicial to the economic and development concerns of developing countries. With the coming into effect of World Trade Organization (WTO), it was expected that some of the concerns of the developing countries will be addressed.

  16. Endocrine uncoupling of the trade-off between reproduction and somatic maintenance in eusocial insects

    OpenAIRE

    Rodrigues Marisa Almeida; Flatt Thomas

    2016-01-01

    n most animals reproduction trades off with somatic maintenance and survival. Physiologically this trade off is mediated by hormones with opposite effects on reproduction and maintenance. In many insects this regulation is achieved by an endocrine network that integrates insulin like/IGF 1 signaling (IIS) juvenile hormone (JH) and the yolk precursor vitellogenin (Vg) (or more generally yolk proteins [YPs]). Downregulation of this network promotes maintenance and survival at the expense of rep...

  17. Penetrating abdominal war injuries among the war victims at Lacor ...

    African Journals Online (AJOL)

    A prospective study of patients presenting with penetrating abdominal war injuries over a 15-months period was carried out at Lacor Hospital mission hospital in Gulu town in Northern Uganda. Those with major concomitant injuries to the chest, central nervous and musculo-skeletal systems were excluded from the study.

  18. Do the Principles of War Apply to Cyber War?

    Science.gov (United States)

    2010-05-21

    framers of our Constitution, to “provide for the common defense.” Over the past decade, a discussion on the application of cyber war capabilities has...direct forces in contact and even watch the battle occur with live streaming video . Some may contend that these types of control mechanisms have

  19. The State, War, and the State of War

    African Journals Online (AJOL)

    Attempts to offer an understanding of the relationship between war making and state creation in the world have been undertaken by many international relations and strategic studies scholars. In most of these attempts attention has been focused on how state making in Europe differed from that in other parts of the world.

  20. Entropy of Egypt's virtual water trade gravity field

    Science.gov (United States)

    Karakatsanis, Georgios; Bierbach, Sandra

    2016-04-01

    The study investigates the entropy of Egypt's virtual water trade gravity distribution, in order to provide a chart of Egypt's embodied water balance in agricultural trade, in relation to distances with its major counterparties. Moreover, our calculations on the amount of the embodied water traded between Egypt and each of its partners take place according to a combination of available data on the blue, green and grey water footprints as well as the Food and Agriculture Organization (FAO) database of traded amounts per crop type. A study on the virtual water trade gravity, enables us to enrich former related studies (Fracasso 2014; Fracasso, Sartori and Schiavo 2014) via examining Egypt's water supply dependence on the Nile River and if comparative advantages -purely from the side of water quantities- can be identified via recognizing which water footprint categories are particularly high. Additionally, this methodology can comprise -from a fundamental level- a guide for revealing the importance of water footprint types for Egypt's agricultural sector; hence, Egypt's potential comparative advantages, as far as quantitative water endowments are exclusively concerned (without consideration of water or crop prices). Although it is pointed out very correctly by various authors (Antonelli and Sartori 2014) that the virtual water trade concept does not incorporate many important aspects of water supply -such as heavy water price subsidizing- to be used accurately for the identification of comparative advantages, we consider that the purely quantitative examination can provide strong fundamental indications -especially for green and grey water footprints, which are hypothesized to be less sensitive to subsidizing. In overall, this effect can very well provide a primary indication on the organization of the global alimentation trade network (Yang et al. 2006). The gravity equation used contains water footprint data for the 15 top traded crops and the distances for Egypt