WorldWideScience

Sample records for dzongu valley bordering

  1. Ethnomedicinal plant use by Lepcha tribe of Dzongu valley, bordering Khangchendzonga Biosphere Reserve, in North Sikkim, India

    Directory of Open Access Journals (Sweden)

    Badola Hemant K

    2008-10-01

    Full Text Available Abstract Lepcha is the oldest and the first tribe reported from Sikkim, India; majority of its population inhabiting in Dzongu valley, an officially demarcated reserve for Lepcha community, bordering Khangchendzonga Biosphere Reserve, in north district. Lepchas of Dzongu are known for their retention of rich cultural heritage. In view of the on-going cultural and economic changes brought in by the process of globalization, the immediate need was felt to document in details the under-explored ethnomedicinal practices of Lepchas of Dzongu valley. This paper reports 118 species, belonging to 71 families and 108 genera, under ethnomedicinal utility by the Lepchas for curing approximately 66 ailments, which could be grouped under 14 broad categories. Zingiberaceae appeared as the most used family (8 species and 5 genera. As per use pattern, maximum of 30.50% species are to cure stomach related disorders/ailments, followed by 19.49% for curing cut, wounds, inflammation, sprains and joint pains. Administration of medicine orally is recorded in 75% cases. Root and rhizome harvesting targeted 30 species. The changing scenario over time both at socio-cultural front and passing traditional knowledge interests from older to younger generation and rich ethnomicinal wealth of the oldest tribe of Sikkim are discussed in the light of conservation strategies and techniques to adopt.

  2. Road infrastructure and mobility of consumption in the Mexicali-Imperial Valley border area

    Directory of Open Access Journals (Sweden)

    Alejandro Mungaray-Moctezuma

    2015-06-01

    Full Text Available The objective of this study is to analyze the mobility of consumption in the Mexicali-Imperial Valley border area. The study shows that the population in the Mexicali sections closer to border crossings generates the greatest amount of consumption dynamics with places located in Imperial Valley. Conversely, Imperial Valley sections that are more distant from the border concentrate a greater number of destination sites for these cross-border trips. It is concluded that a higher quality and more integrated road infrastructure allows the new consumption centers in Imperial Valley to be located farther away from the border and that the Mexicali population with visas can cross indiscriminately through any border crossing by taking longer journeys toward these centers.

  3. Some Thoughts Regarding Research on Local Notions of the Nation in the Valley of the Upper Kolpa/Kupa after Establishment of the Slovenian-Croatian State Border

    Directory of Open Access Journals (Sweden)

    Duška Knežević Hočevar

    2000-06-01

    Full Text Available Today, in part of the discussion on ethnicity and nationalism, more and more attention is being given to the specific European situation “after the fall of the Berlin wall”, i.e. to the problem of new international borders in the former socialist countries of Europe. Namely, border areas offer a particular perspective from which to examine social processes, ranging from deterritorialisation to the strengthening of territoritorial borders, which in border areas manifest themselves in a particular way. Given national entities in border areas certainly most explicitly express their relationships with neighbouring territorial communities, as they maintain, for the most part, feelings of social differentiation, both as sameness and as difference from the core or majority population in their own “nation states”. The author of the paper examines one such area, i.e. the border zone determined by the new international border between Slovenia and Croatia (1991. The text briefly presents some of the most important results of two field studies, conducted by the author in 1993 and 1996, aimed at examining the awareness of national identity among the upper Kolpa/Kupa valley population, and the ways in which this was managed both prior and after establishment of the international border. The author was motivated to make such a study primarily by contradictory explanations in regard to the most fitting nature of the new border that were in the centre of focus from the early 1990s – the majority of which were also noted in the mass media. Among the various explanations on the nature of the border, she recognised two extremes – on the one hand, were supporters of the idea of “Europe without borders”, and on the other hand defenders of the demand for an “impermeable border” against the possible threat from the Balkan area. Similarly, the author recognised opposed views in the clearly contradictory relationship of the border population in the

  4. Source characterization of major emission sources in the Imperial and Mexicali Valleys along the US/Mexico border

    Energy Technology Data Exchange (ETDEWEB)

    Watson, J.G.; Chow, J.C. [Desert Research Institute, 2215 Raggio Pkwy., 89512 Reno, NV (United States)

    2001-08-10

    Chemical profiles for particle emissions are needed for source apportionment studies using the chemical mass balance (CMB) receptor model. Source measurements of geological sources, motor vehicle exhaust, vegetative burning (e.g. asparagus, field burning, charbroil cooking), and industrial sources (e.g. oil-fueled glass plant, manure-fueled power plants) were acquired as part of the Imperial/Mexicali Valley Cross Border PM{sub 10} Transport Study in 1992. Six different source sampling techniques (i.e. hot- and diluted-exhaust sampling, ground-based source sampling, particle sweeping/grab sampling, vacuum sampling, and laboratory resuspension sampling) were applied to acquire filter samples of PM{sub 2.5} and PM{sub 10} (particulate matter with aerodynamic diameters <2.5 and 10 {mu}m, respectively). Filter samples were analyzed for mass by gravimetry, elements (Na to U) by X-ray fluorescence, anions (Cl{sup -}, NO{sub 3}{sup -}, SO{sub 4}{sup =}) by ion chromatography, ammonium (NH{sub 4}{sup +}) by automated colorimetry, soluble sodium (Na{sup +}) and potassium (K{sup +}) by atomic absorption spectrophotometry, and organic and elemental carbon (OC, EC) by thermal/optical reflectance. Concentration data were acquired for a total of 50 chemical species. Elevated abundances of crustal components (Al, Si, K, Ca, Fe) from geological material, carbon (OC, EC) and trace elements (Br, Pb) from vehicle exhausts, carbon (OC, EC) and ions (K{sup +}, Cl{sup -}) from vegetative burning, ions (SO{sub 4}{sup =}, NH{sub 4}{sup +}, Na{sup +}, K{sup +}, Cl{sup -}) and elements (Cl, Se) from a manure-fueled power plants, and sulfur and trace elements (Na{sup +}, Pb, Se, Ni, V) from an oil-fueled glass plant were found in the resulting source profiles. Abundances of crustal species (e.g. Al, Si, Ca) in the Imperial/Mexicali Valley geological profiles are more than twice those found in central and southern California. Abundances of lead in motor vehicle exhausts indicate different

  5. Water Transfers, Air Quality, Ecosystems and Population Growth at the US-Mexico Border: An Integrated Model of the Mexicali and Imperial Valleys

    Science.gov (United States)

    Forster, C. B.; Gonzalez, T.; Peach, J.; Kjelland, M.; Collins, K.; Grant, W. E.

    2006-12-01

    Borderland communities in the Imperial-Mexicali Valleys (IMVs) of California (U.S.A.) and Mexicali (Mexico) are experiencing socioeconomic and environmental changes driven by policy makers and environmental conditions both within and outside the IMVs. The Colorado River Quantification Settlement Agreement (QSA) of 2003 will transfer 30 million acre-feet of Colorado River water from Imperial Valley (IV) agricultural users to Southern California urban users over a 75-year period. Because the water level of the Salton Sea is supported by agricultural runoff, reduced water flows to the sea raise concerns that: 1) air quality will be degraded as dust is generated by the drying Sea-bed, and 2) declining fish populations due to increasing salinity will no longer support birds migrating along a key avian flyway. Rapid population growth in the Mexican border-city of Mexicali, combined with new power plants and plans for water reuse, raises concerns that: 1) the quantity and quality of water supplied to the Salton Sea will decline, and 2) increased vehicle use and electrical power generation will lead to declining air quality in the binational air basin. Each concern may be affected by climate change. As environmental factors change, so too may the agricultural economy of the Imperial Valley that, in turn, depends on the availability of both water and manual labor. The economy of Mexicali is dominated by the maquiladora (manufacturing) industry that depends upon the availability of power, labor and water. A system dynamics model, with annual time step, simulates this complex binational system. The model was developed by an academic team with input from local experts/decision-makers from both Mexico and the US. We are preparing to engage community stakeholders and decision-makers in exploring the model. Insights gained from model results yield better understanding of the consequences of alternative future scenarios that include: QSA water transfers and land fallowing plans

  6. Touristic infrastructure of municipalities in the border section of Bug valley's Dołhobyczów-Włodawa in the context of existing protected areas

    Science.gov (United States)

    Kałamucka, Wioletta; Kałamucki, Krzysztof

    2011-01-01

    This article presents results of research concerning tourist infrastructure in some districts located in the Bug river valley, in the context of protected areas. The territory examined includes 9 rural districts and 2 towns in the immediate neighborhood of the river. These administrative units are characterized by great natural value. Their total area is 687,7 km2 that makes 6,7% of the whole Lublin voivodship. On the other hand, the share of protected areas (without Natura 2000) is twice as high - 11,1%. Protected areas makes 37,6% of the territory under study. In some units, share of protected areas is very high: Dubienka - 72%, Horodło - 69,5%. In 2009 in the region examined there were 48 objects of collective accommodation - 16,8% of total number in the voivodship. 83,6% of all objects were situated in Włodawa. Characteristic feature of accommodation is seasonality. There are only 7 objects that functions the whole year and year-round lodging places (280) makes barely 9,3% of the totality. Comparing tourist management with presence of areas of the highest natural values, one can see strong correlation between these two indexes only in rural unit - Włodawa, located within the borders of Biosphere Reserves "Polesie Zachodnie" (West Polesie) In case of other units such a interdependance does not exist. On the contrary, there is opposite relation. In Dołhobyczów, Mircze, Horodło, where apart from areas of Natura 2000, in the Bug river valley landscapes protected areas and landscapes parks were created, tourist infrastructure is insignificant or even does not exist. The existence of large protected areas and natural value make it possible to develop various forms of environmentally friendly tourism - tourism qualified, especially fishing and canoeing, hiking, biking, nature education tourism. Tourist service centers should be located outside the valley. Due to the high natural values, caution is advisable to adapt the area for tourism. Such decisions should

  7. Palaeomagnetic dating of widespread remagnetization on the southeastern border of the French Massif Central and implications for fluid and Mississippi Valley-type mineralization

    Science.gov (United States)

    Henry, B.; Rouvier, H.; Goff, M.L.; Leach, D.; Macquar, J.-C.; Thibieroz, J.; Lewchuk, Michael T.

    2001-01-01

    Palaeomagnetic dating techniques have been applied to determine the age of fluid migration that produced the Mississippi Valley-type (MVT) Pb-Zn-Ba-F deposits in the Ce??vennes region of southern France. 15 sampling sites in two gently deformed areas around the Largentie??re and Croix-de-Pallie??res mines on the Ce??vennes border were selected for palaeomagnetic study. They yielded a very well-defined direction of remagnetization corresponding to an Early-Middle Eocene age. This remagnetization cannot be related to the formation of magnetic as a result of the transformation of smectite to illite because the latter has been well dated as a Mesozoic event. The magnetic overprint in this area is related to a chemical phenomenon during fluid migration. The age of remagnetization corresponds to a major uplift in the Pyre??ne??es mountains, located to the south of the Ce??vennes. This implies that fluid migration occurred from the south to the north as a result of hydraulic head established in the Pyre??ne??es orogenic belt during orogenesis and suggests that the MVT deposits in the Ce??vennes region formed from a gravity-driven fluid system as described by Garven & Freeze (1984a,b).

  8. Palaeomagnetic dating of widespread remagnetization on the southeastern border of the French Massif Central and implications for fluid flow and Mississippi Valley-type mineralization

    Science.gov (United States)

    Henry, Bernard; Rouvier, Henri; le Goff, Maxime; Leach, David; Macquar, Jean-Claude; Thibieroz, Jacques; Lewchuk, Michael T.

    2001-05-01

    Palaeomagnetic dating techniques have been applied to determine the age of fluid migration that produced the Mississippi Valley-type (MVT) Pb-Zn-Ba-F deposits in the Cévennes region of southern France. 15 sampling sites in two gently deformed areas around the Largentière and Croix-de-Pallières mines on the Cévennes border were selected for palaeomagnetic study. They yielded a very well-defined direction of remagnetization corresponding to an Early-Middle Eocene age. This remagnetization cannot be related to the formation of magnetite as a result of the transformation of smectite to illite because the latter has been well dated as a Mesozoic event. The magnetic overprint in this area is related to a chemical phenomenon during fluid migration. The age of remagnetization corresponds to a major uplift in the Pyrénées mountains, located to the south of the Cévennes. This implies that fluid migration occurred from the south to the north as a result of hydraulic head established in the Pyrénées orogenic belt during orogenesis and suggests that the MVT deposits in the Cévennes region formed from a gravity-driven fluid system as described by Garven & Freeze (1984a,b).

  9. U.S. Border Patrol Fiscal Year Statistics Southwest border sector deaths - FY 1998 through FY 2013

    Data.gov (United States)

    Department of Homeland Security — Southwest Border Sectors include: Del Rio, El Centro, El Paso, Laredo, Rio Grande Valley, San Diego, Tucson, Yuma Southwest Border Deaths By Fiscal Year (Oct. 1st...

  10. Border markets

    DEFF Research Database (Denmark)

    Walther, Olivier

    2014-01-01

    The objective of this issue of Articulo – Journal of Urban Research is to examine the characteristics of border markets in a comparative perspective. In this introductory paper, I first discuss what makes African border markets different from other markets, and examine several factors that explain...... their unequal economic development: the presence of a trade community, the combination of trading and productive activities, and the relative porosity of borders. In a second part, I examine how border markets on the U.S.-Mexico border must simultaneously guarantee the security of the state while favoring...... regional trade. The last part of the paper argues that more policy attention should be paid to border markets which, despite being at the margin of states, are a vital component of their economy. Fifty years after most West African states became independent and just as NAFTA turns 20, it is high time...

  11. Border markets

    DEFF Research Database (Denmark)

    Walther, Olivier

    2014-01-01

    The objective of this issue of Articulo – Journal of Urban Research is to examine the characteristics of border markets in a comparative perspective. In this introductory paper, I first discuss what makes African border markets different from other markets, and examine several factors that explain...... their unequal economic development: the presence of a trade community, the combination of trading and productive activities, and the relative porosity of borders. In a second part, I examine how border markets on the U.S.-Mexico border must simultaneously guarantee the security of the state while favoring...... regional trade. The last part of the paper argues that more policy attention should be paid to border markets which, despite being at the margin of states, are a vital component of their economy. Fifty years after most West African states became independent and just as NAFTA turns 20, it is high time...

  12. Remote Sensing Assessment of Soil Moisture, Soil Mineralogy and other Environmental Factors Influencing Mosquito-borne Infection Risks in the Lower Rio Grande Valley, U.S. - Mexico Border (Invited)

    Science.gov (United States)

    Hubbard, B. E.; Folger, H. W.; Page, W. R.

    2010-12-01

    A dengue fever outbreak occurred near Matamoros, Mexico along the Lower Rio Grande Valley during the summer of 2005 following heavy rainfall from Tropical Storm Gert and Hurricane Emily. This outbreak exemplifies the need for monitoring soil moisture and mapping soil permeability factors affecting the breeding and distribution of mosquito species capable of spreading disease. For example, the Rio Grande delta of South Texas and North Tamaulipas Mexico is inhabited by over 50 native and invasive species of mosquitoes capable of hosting Malaria, West Nile Virus and other types of human and livestock infecting Encephalitis. They range in ecological habitats from coastal salt marshes to freshwater riparian wetlands, tree holes and/or urban containers, flooded agricultural fields, and the many irrigation canals and ditches present throughout our study area. For this study, water-saturated and flooded soils were mapped using a “soil moisture availability” index (Mo) based on normalized difference vegetation index (NDVI) images and surface radiant and/or kinetic temperature images derived from multi-temporal Landsat-7 ETM+ and ASTER imagery. In particular, the Landsat-7 imagery covers ten cloud-free or minimal cloud cover acquisition dates during drought and wet periods of 2002, prior to the scan-line corrector failure in 2003. This includes one date (August 18, 2002) of co-orbital swath coverage between Landsat and ASTER, acquired after the land fall and dissipation of Tropical Storm Bertha (August 09, 2002). ASTER image dates used include those before and after the land fall of Hurricane Emily on July 20, 2005. The resulting maps show the distribution of relatively permeable (i.e. sandier) and impermeable soil types, the latter of which are dominated by clay-rich soils deposited in remnant interdistributary channels as channel-fill, and overbank flood deposits along the modern Rio Grande delta and portions of the (remapped) Pleistocene Beaumont coastal deltaic plain

  13. Border poetics

    Directory of Open Access Journals (Sweden)

    Liv Lundberg

    2014-07-01

    Full Text Available The language of poetry is a language of inquiry, not the language of a genre. Poetry has the capacity of entering those zones known as borderlands, where you meet strange things and foreign people. In this poetic world view, the border is not an edge along the fringe of lands, societies and experiences, but rather their very middle – and their in-between. The structures of language are social structures in which meanings and intentions are already in place, always fighting for power and dominance, with rhetorical figures and more violent weapons.

  14. Valley Fever

    Science.gov (United States)

    Valley Fever is a disease caused by a fungus (or mold) called Coccidioides. The fungi live in the soil ... from person to person. Anyone can get Valley Fever. But it's most common among older adults, especially ...

  15. Border Crossings (National)

    Data.gov (United States)

    Department of Transportation — Border Crossing Ports (NTAD 2015) are points of entry for land modes along the U.S. - Canadian and U.S.- Mexcian borders. The ports of entry are located in 15 states...

  16. Borders, Violence, Law

    Directory of Open Access Journals (Sweden)

    JAVIER DE LUCAS

    2014-06-01

    Full Text Available This article explores the relationship between violence, law and borders by analyzing both the violence at the borders and the violence of the borders. In both cases, the author states that violence exerted by means of law, as well as migratory and asylum policies, threaten the universal human rights of the most vulnerable people and cannot be seen as exercising the legitimate monopoly of force, resulting in the destruction of the Rule of Law.

  17. Business, brokers and borders

    DEFF Research Database (Denmark)

    Walther, Olivier

    Using social network analysis, this paper studies the structure of trade networks that developed across West African borders. The first part aims to understand the centralization of cross-border trade networks. In a business environment where transaction costs are extremely high, we find that dec......Using social network analysis, this paper studies the structure of trade networks that developed across West African borders. The first part aims to understand the centralization of cross-border trade networks. In a business environment where transaction costs are extremely high, we find...... developed with foreign partners from a different origin, religion or culture. In the second part, we study the spatial structure of trade networks and the influence of national borders on the development of social ties. The paper shows that the spatial form of trade networks is constrained by the historical...

  18. Tectonic and igneous geology of the northern Shoshone Range, Nevada, with sections on gravity in Crescent Valley and economic geology

    Science.gov (United States)

    Gilluly, James; Gates, Olcott; Plouff, Donald; Ketner, K.B.

    1965-01-01

    Part of the northern Shoshone Range and its bordering valleys are shown in the Mount Lewis and Crescent Valley quadrangles of the U.S. Geological Survey's Topographic Atlas. A very small part of the Cortez Mountains extends into the Crescent Valley quadrangle and is also described.

  19. Border cells versus border-like cells: are they alike?

    Science.gov (United States)

    Driouich, Azeddine; Durand, Caroline; Cannesan, Marc-Antoine; Percoco, Giuseppe; Vicré-Gibouin, Maité

    2010-09-01

    Roots of many plants are known to produce large numbers of 'border' cells that play a central role in root protection and the interaction of the root with the rhizosphere. Unlike border cells, border-like cells were described only recently in the model plant Arabidopsis thaliana and other Brassicaceae species and very little is known about the functional properties of border-like cells as compared with 'classical' border cells. To stimulate discussion and future research on this topic, the function of border cells and the way border-like cells are organized, maintained, and possibly involved in plant protection is discussed here.

  20. Cross border relationships

    DEFF Research Database (Denmark)

    Singla, Rashmi; Sriram, Sujata

    2010-01-01

    the borders in the context of modernity such as will also be discussed. In the backdrop of polarisation of populations into us and them, still there are increasing trends towards intermarriage, which challenge the idea of who belongs together and earlier taboos against such mixing. The symposia will explore...... dynamics of these relations - in the intimate partnerships, friendships across the borders, children of mixed parentage...

  1. Borders, Risks, Exclusions

    Directory of Open Access Journals (Sweden)

    Benjamin Muller

    2009-10-01

    Full Text Available In this paper the border is evaluated as a fold of power relations in which sovereign capacity and competence is marshaled in the furtherance of illiberal practices. Drawing from interview data of officials in various agencies engaged in the US-Canada and particularly the Windsor-Detroit corridor, the argument is made that the border is a site for both negative and positive power, for insertion and subtraction, and that surveillance and compliance regimes are ‘run’ not so much in the furtherance of a precautionary or preemptive end-state, but as intermediate values that are sufficiently malleable by an invigorated sovereign, expressed in the residue of discretion in and between the many border agencies.

  2. Cross border relationships

    DEFF Research Database (Denmark)

    Singla, Rashmi; Sriram, Sujata

    2010-01-01

    in which they were born. These movements also imply human relationships across the borders in different contexts with various cultural, psychological consequences. Relationships of members of migrant groups with each other, and also with the host community have important implications on the health and well......-being of not just the migrant population, but also the host communities. These relationships represent the microcosm of societal and cultural integration and cohesion at the broader levels. Studies of how and how well migrants, especially youth handle migration indicate transformations in paradigms as both...... dynamics of these relations - in the intimate partnerships, friendships across the borders, children of mixed parentage...

  3. Border region studies

    DEFF Research Database (Denmark)

    Makkonen, Teemu; Williams, Allan

    2016-01-01

    The contemporary conditions of academic capitalism exert pressures on researchers to avoid ‘peripheral’ journals and ‘unfashionable’ topics. Here an attempt is made to shed light onto the structure of one such ‘offbeat’ field, namely ‘border region studies’, by discussing its geographical...... distribution, key themes, significance and impact. The review suggests that border region studies can be considered a significant and important ‘branch’ of regional studies, which accounts for a small but increasing proportion of regional studies research particularly in Europe and North America. Four main...

  4. FERGHANA VALLEY: PROBLEMS OF MAINTAINING ECONOMIC STABILITY

    OpenAIRE

    2007-01-01

    The Central Asia region, which is located in the very heart of the vast Eurasian continent at the crossroads where four of the largest civilizations (Russian, Chinese, Indian, and Islamic) meet, has a long and profuse history teeming with difficulties and conflicts. The Ferghana Valley is a territory where all the problems of the Central Asia region (border conflicts, poverty, shortage of fertile land and water resources, unemployment, ethnic disputes, and so on) are concentrated and come tog...

  5. From Borders to Margins

    DEFF Research Database (Denmark)

    Parker, Noel

    2009-01-01

    upon Deleuze's philosophy to set out an ontology in which the continual reformulation of entities in play in ‘post-international' society can be grasped.  This entails a strategic shift from speaking about the ‘borders' between sovereign states to referring instead to the ‘margins' between a plethora...

  6. Biometric Borders and Counterterrorism

    Science.gov (United States)

    2010-12-01

    34Transforming Travel and Border Controls: Checkpoints in the Open Society," Government Information Quarterly 22, no. 4 (01 October 2005), 594-625, http...the Open Society." Government Information Quarterly 22, no. 4 (1 October 2005): 594– 625. Hsu, Spencer S. "U.S. Preparing to Drop Tracking of

  7. Borders of Discourse?

    DEFF Research Database (Denmark)

    Hermansen, Janni Berthou

    2015-01-01

    This article aims to discuss a fundamentally different approach to discourse analysis by using a pragmatic point of departure for understanding use of language. Using an empirical example from a construction project it is discussed how material as well as societal dimensions of collaboration...... functions as borders for transformations of discourse – and these dimensions are most often intertwined...

  8. Crossing borders for creativity

    NARCIS (Netherlands)

    D. Jacobs; Ewan Lentjes

    2012-01-01

    The Organza project was proud to present "Crossing Borders for Creativity". This publication is a reflective record of the Organza project. The second chapter examines What Organza was all about. It is a concise analysis of the process, starting from the regional profile descriptions, it points at

  9. Border cell release

    DEFF Research Database (Denmark)

    Mravec, Jozef

    2017-01-01

    Plant border cells are specialised cells derived from the root cap with roles in the biomechanics of root growth and in forming a barrier against pathogens. The mechanism of highly localised cell separation which is essential for their release to the environment is little understood. Here I present...

  10. Canada and Mexico Border Crossings

    Data.gov (United States)

    Department of Homeland Security — Border Crossing Ports are points of entry for land modes along the U.S. - Canadian and U.S.- Mexcian borders. The ports of entry are located in 15 states along the...

  11. Healthy Border 2020 Embassy Launch

    Science.gov (United States)

    The U.S.-Mexico Border Health Commission launched the Healthy Border 2020 at the Mexican Embassy in the United States on June 24, 2015. This new initiative aims to strengthening what was accomplished on the previous plan of action entitled Healthy Border 2010.

  12. Distance, Borders, and Time

    DEFF Research Database (Denmark)

    Skillicorn, David; Walther, Olivier; Zheng, Quan

    is a combination of the physical geography of the target environment, and the mental and physical cost of following a seemingly random pattern of attacks. Focusing on the distance and time between attacks and taking into consideration the transaction costs that state boundaries impose, we wish to understand what......” of North and West Africa that depicts the permeability to violence. A better understanding of how location, time, and borders condition attacks enables planning, prepositioning, and response....

  13. Metrics for border management systems.

    Energy Technology Data Exchange (ETDEWEB)

    Duggan, Ruth Ann

    2009-07-01

    There are as many unique and disparate manifestations of border systems as there are borders to protect. Border Security is a highly complex system analysis problem with global, regional, national, sector, and border element dimensions for land, water, and air domains. The complexity increases with the multiple, and sometimes conflicting, missions for regulating the flow of people and goods across borders, while securing them for national security. These systems include frontier border surveillance, immigration management and customs functions that must operate in a variety of weather, terrain, operational conditions, cultural constraints, and geopolitical contexts. As part of a Laboratory Directed Research and Development Project 08-684 (Year 1), the team developed a reference framework to decompose this complex system into international/regional, national, and border elements levels covering customs, immigration, and border policing functions. This generalized architecture is relevant to both domestic and international borders. As part of year two of this project (09-1204), the team determined relevant relative measures to better understand border management performance. This paper describes those relative metrics and how they can be used to improve border management systems.

  14. Atmospheric Science Without Borders

    Science.gov (United States)

    Panday, Arnico; Praveen, Ps; Adhikary, Bhupesh; Bhave, Prakash; Surapipith, Vanisa; Pradhan, Bidya; Karki, Anita; Ghimire, Shreta; Thapa, Alpha; Shrestha, Sujan

    2016-04-01

    The Indo-Gangetic Plains (IGP) in northern South Asia are among the most polluted and most densely populated places in the world, and they are upwind of vulnerable ecosystems in the Himalaya mountains. They are also fragmented across 5 countries between which movement of people, data, instruments and scientific understanding have been very limited. ICIMOD's Atmosphere Initiative has for the past three years been working on filling data gaps in the region, while facilitating collaborations across borders. It has established several atmospheric observatories at low and mid elevations in Bhutan and Nepal that provide new data on the inflow of pollutants from the IGP towards the mountains, as well as quantify the effects of local emissions on air quality in mountain cities. EGU will be the first international conference where these data will be presented. ICIMOD is in the process of setting up data servers through which data from the region will be shared with scientists and the general public across borders. Meanwhile, to promote cross-border collaboration among scientists in the region, while addressing an atmospheric phenomenon that affects the lives of the several hundred million people, ICIMOD' Atmosphere Initiative has been coordinating an interdisciplinary multi-year study of persistent winter fog over the Indo-Gangetic Plains, with participation by researchers from Pakistan, India, China, Nepal, Bhutan and Bangladesh. Using a combination of in-situ measurements and sample collection, remote sensing, modeling and community based research, the researchers are studying how changing moisture availability and air pollution have led to increases in fog frequency and duration, as well as the fog's impacts on local communities and energy demand that may affect air pollution emissions. Preliminary results of the Winter 2015-2016 field campaign will be shown.

  15. Collaborating Across Borders

    Science.gov (United States)

    Flatten, Amy

    Physicists transcend national boundaries, ethnic differences, and scientific disciplines to address globally shared problems and questions. This talk will highlight how scientists have collaborated across borders - both geographic and scientific - to achieve ground-breaking discoveries through international scientific cooperation. The speaker also will address how international collaborations will be even more crucial for addressing future challenges faced by the physics community, such as building large-scale research facilities, strengthening scientific capacity in developing countries, fostering ''science for diplomacy'' in times of political tensions and other critical issues.

  16. Cardiology without borders

    Institute of Scientific and Technical Information of China (English)

    Michael Wolk

    2004-01-01

    @@ Cardiovascular disease takes place in a border-free world. The challenge at the American College of Cardiology (ACC) and anywhere else in the world is to hold patient care above the artificial barriers raised by geopolitical issues. Fundamentally, the goal of ACC members or of any cardiology societies in the world is to provide excellent patient care. Cardiovascular disease is essentially the same throughout the world. Where there are minor variations among individuals, as clinicians we find priceless opportunity to learn. Expanding- rather contracting -our experience base helps us as individuals to realize our best potential as practitioners.

  17. Business, brokers and borders

    DEFF Research Database (Denmark)

    Walther, Olivier

    2015-01-01

    in two border regions between Niger, Nigeria, and Benin. In a business environment where transaction costs are extremely high, we find that decentralized networks are well adapted to the various uncertainties induced by long-distance trade. We also find that long-distance trade relies both on the trust...... and cooperation shared among local traders, and on the distant ties developed with foreign partners from a different origin, religion or culture. Studying the spatial structure of trade networks, we find that in those markets where trade is recent and where most of the traders are not native of the region...

  18. Valley precession and valley polarization in graphene with inter-valley coupling

    Science.gov (United States)

    Wu, Qing-Ping; Liu, Zheng-Fang; Chen, Ai-Xi; Xiao, Xian-Bo; Zhang, Heng; Miao, Guo-Xing

    2017-10-01

    We theoretically investigate the valley precession and valley polarization in graphene under inter-valley coupling. Our results show that the inter-valley coupling can induce valley polarization in graphene and also precess valleys in real space in a manner similar to the Rashba spin-orbit interaction rotating spins. Moreover, using strain modulation, we can achieve high valley polarization with large valley-polarized currents. These findings provide a new way to create and manipulate valley polarization in graphene.

  19. Energy valley in transition

    NARCIS (Netherlands)

    Verwayen, Barbara

    2006-01-01

    The Energy Valley foundation was born in 2004. It functions as a catalyst and platform for private and public organisations. It has a supporting and facilitating role in realising projects on energy conservation and sustainable energy. The Energy Valley a

  20. Stretching the Border

    DEFF Research Database (Denmark)

    Horstmann, Alexander

    2014-01-01

    In this paper, I hope to add a complementary perspective to James Scott’s recent work on avoidance strategies of subaltern mountain people by focusing on what I call the refugee public. The educated Karen elite uses the space of exile in the Thai borderland to reconstitute resources and to re......-enter Karen state in Eastern Burma as humanitarians, providing medical, educational resources and help to document human rights violations and do advocacy work. In addition, local missionaries and faith-based groups also use the corridor to spread the word of God. I argue that Karen humanitarian community......-based organizations succeed to stretch the border by establishing a firm presence that is supported by the international humanitarian economy in the refugee camps in Northwestern Thailand....

  1. Borders in Library

    Directory of Open Access Journals (Sweden)

    N. Toshmakova

    2015-09-01

    Full Text Available Libraries are fundamental institutions for the life under socialism in Bulgaria (1944-1989. They provide studies and readings for big part of society. This is time when television was very rare in Bulgarian homes and the newspapers were totally controlled by Communist party. This way a library served as the main source of information. Seemingly ordinary cultural centers, they become a powerful tool in the hands of the communist state. They are the ones who are actively worked to impose new socialist thinking trough setting limits on access to readers and therefore control the flow of information. The aim of this article is to trace the influence of restricted by communist censorship institution Glavlit literature. Or to put it another way – what was the role of censorship in the process of establishment of borders created by prohibited access to scientific information.

  2. Border mythology: Turner and modernity

    Directory of Open Access Journals (Sweden)

    Jorge E. Brenna B.

    2011-07-01

    Full Text Available Modernity has been creating spaces, new boundaries and borders, as metaphysical, mythological and symbolic marks of physical and imaginary territories. Modern space and its borders are metaphors, boundaries that are created, walls that rise to identify with some and categorize others. In this short paper we want to approach the problem of the transformation of the idea of border (geographical, cultural, symbolic, etc., for a reflection on the transformations of that civilized obsession called border. The border has always been a reference in facing the identities, names, symbols, different imaginary: it is more confrontational line between two otherness. From the previous framework, we reflect on Turnerian mythology, as we believe that behind the creation of the imagination of the northern border is the mythical vision of the American frontier as ideological canon that explains and confirms the presence of the white race in a border re–made in the image and likeness of the “American Dream”. Frederick Turner’s reflection on the role of the frontier in American history is not only the study of the importance of progress towards the West but –even more so, is the analysis of meaning that had the American frontier as a historical process that ended in 1893, as Turner said, but rather extended into the twentieth century and continues to constantly shaping the process of territorialization of the border.

  3. Geographical, Sociological and Metaphysical Borders

    Directory of Open Access Journals (Sweden)

    Jacinto Choza Armenta

    2008-09-01

    Full Text Available During the different ages of history and prehistory, borders have possessed different kinds of natures. Sometimes they did not exist, at other times they have been very diffuse, while at others they have been impassable. There were no borders in the Paleolithic age, or during Greece’s Heroic Age. It was not until the creation of the city-states and the empires that borders began to be consolidated. Territorial demarcations were not very strict during the Middle Ages, either. It was in the modern age that borders acquired an impassable nature, following the birth of the modern State, and they began to weaken with the crisis of the modern State that began in the 20th century. Thus, the author claims, the construction of borders is not a fundamentally political-administrative event. Instead, it seems to be primarily a phenomenon of a cultural nature and, more specifically, of a metaphysical nature.

  4. Living in a High Mountain Border Region: the Case of the 'Bhotiyas' of the Indo-Chinese Border Region

    Institute of Scientific and Technical Information of China (English)

    Christoph Bergmann; Martin Gerwin; Marcus Nüsse; William S. Sax

    2008-01-01

    This article introduces one of South Asia's most important border regions into academic discourse, namely, the Central Himalayan mountain rim separating India and the Tibetan Autonomous Region (People's Republic of China). What makes this border region so interesting is a tangled interplay of changing environmental, cultural, and political forms to which the local populations constantly have to adapt in order to make a living there. We focused on the so-called 'Bhotiyas' of Uttarakhand, former trans-Himalayan traders whose ethnicity and livelihood was traditionally associated with the Indo-Chinese border that was sealed as a result of the India-China war in 1962. Drawing on the work of borderland scholarship, we identified the key processes and developments that changed the perspective of this area. Competing political aspirations as well as the 'Bhotiyas' countervailing strategies were considered equally important for understanding local livelihoods and identities within the dynamics of a 'high mountain border region'. Through an exemplary analysis of historical differences of power in one 'Bhotiya' valley, we further explored the ways in which shifting socio-spatial constellations are creatively re-interpreted by the borderlanders.

  5. Crossing borders via mental bridges

    DEFF Research Database (Denmark)

    Keil, Dirk

    The project studies cross-border regional integration in Europe drawing on the example of the emerging Danish-German Femern Belt Region. It focuses on cross-border networking within public administration as part of regional integra- tion. My central question is how national-cultural differences...... influence coopera- tion, coordination and collaboration in administrative cross-border networks. In this connection the project asks after the perception of regional integration seen from the different national backgrounds. The research concentrates on the group of decision makers within the field of public...

  6. Firemen without borders

    CERN Multimedia

    2005-01-01

    Fire knows no borders and neither should the tools for fighting it. It was with this aim in mind that delegates from 14 different countries came to CERN at the beginning of April to take part in the twentieth of a series of twice-yearly international conferences organised by the Federation of European Union Fire Officer Associations (FEU). This latest conference allowed participants to keep abreast of new developments with a view to improving the safety techniques used in their own countries. The first in the series was held in Tampere, Finland, in 1994. The FEU network's objective is to harmonise safety policies and modernise the fire-fighting programme. In particular, it aims to develop an international system for testing hotels' fire alarm systems and to improve language learning in all countries' fire-fighting services. "We want authorities throughout Europe to be aware of the importance of a good joint fire-prevention policy in order to avoid catastrophes such as the fire that destroyed Madrid's Winds...

  7. Distance, Borders, and Time

    DEFF Research Database (Denmark)

    Skillicorn, David; Walther, Olivier; Zheng, Quan

    This paper explores the spatial and temporal diffusion of political violence in North and West Africa. It does so by endeavoring to represent the mental landscape that lives in the back of a group leader’s mind as he contemplates strategic targeting. We assume that this representation is a combin......This paper explores the spatial and temporal diffusion of political violence in North and West Africa. It does so by endeavoring to represent the mental landscape that lives in the back of a group leader’s mind as he contemplates strategic targeting. We assume that this representation...... constrains a group leader to attack at a location other than the one that would seem to yield the greatest overt payoff. By its very nature, the research problem defies the collection of a full set of structural data. Instead, we leverage functional data from the Armed Conflict Location and Event Data......” of North and West Africa that depicts the permeability to violence. A better understanding of how location, time, and borders condition attacks enables planning, prepositioning, and response....

  8. Border Security: A Journey Without a Destination

    Science.gov (United States)

    2013-12-01

    immigrants include “ undocumented immigrants ,” “ undocumented migrants,” “ undocumented aliens,” and “illegal aliens.”12 7. Border Security Border... Undocumented Immigrants : Facts and Figures.” Urban Institute, January 12, 2004. http://www.urban.org/UploadedPDF...the future. 14. SUBJECT TERMS Border, Border Security, Secure Border, DHS, CBP, USBP, Immigration , Measures, Project Management, Project

  9. Initiatives of cross-border regional planning in Matamoros-Brownsville (Mexico-United States

    Directory of Open Access Journals (Sweden)

    Xavier Oliveras González

    2016-03-01

    some initiatives of this kind have been carried on, particularly between cross-border conurbations (Tijuana-San Diego, Ciudad Juárez-El Paso, etc.. One cross-border conurbation has been selected: Matamoros, Tamaulipas and Brownsville, Texas. There six initiatives have been carried on since late 1960s: Urban development bi-national planning program (1968, Binational 2020 Land Use and Transportation Plan (1997-99, Binational Transportation Focus Group (2002, Laguna Madre Binational Initiative (1998-2000, Bi-National Economic Development Zone (BI-NED Zone (2011-…, and Lower Rio Grande Valley-Tamaulipas Border Master Plan (2013. All of them present some particularities based on their objectives and function, participant local and regional actors, the planning phase, and their results. Despite differences, they show a common feature: the existence of a shared set of spatial topics of interest, like transportation and infrastructures, land uses in adjacent border spaces, and regional development. These six initiatives are not isolated from the ongoing local, national and binational spatial debates, but they have been carried on in parallel with some other binational processes (such as NAFTA and NAAEC, planning and construction of new international bridges, elaboration of urban plans in one or both cities, and confluence with conjectural economic development opportunities. In all of these initiatives the border is deactivated and, simultaneously, the spatial differentiation is reproduced. That can be observed in the objects and spatial dynamics that are subject to planning, the spatial distribution of land uses across the boundary, and the objectives and participant actors of cross-border planning processes. Finally, four main spatial imaginaries have been identified: the “other side” and the cross-border dimension; economic development and crossborder transportation infrastructures; the divergent spatial distribution of land uses according to the boundary; and the

  10. Haemoragisk Rift Valley Fever

    DEFF Research Database (Denmark)

    Fabiansen, Christian; Thybo, Søren

    2007-01-01

    A case of fatal hemorrhagic Rift Valley fever during an epidemic in Kenya's North Eastern Province in January 2007 is described.......A case of fatal hemorrhagic Rift Valley fever during an epidemic in Kenya's North Eastern Province in January 2007 is described....

  11. Rift Valley Fever Virus

    Science.gov (United States)

    Rift Valley fever virus (RVFV) is a mosquito-transmitted virus or arbovirus that is endemic in sub-Saharan Africa. In the last decade, Rift Valley fever (RVF) outbreaks have resulted in loss of human and animal life, as well as had significant economic impact. The disease in livestock is primarily a...

  12. Silicon Valley Ecosystem

    Institute of Scientific and Technical Information of China (English)

    Joseph Leu

    2005-01-01

    @@ It is unlikely that any industrial region of the world has received as much scrutiny and study as Silicon Valley. Despite the recent crash of Internet and telecommunications stocks,Silicon Valley remains the world's engine of growth for numerous high-technology sectors.

  13. The 'border within': inhabiting the border in Trieste

    NARCIS (Netherlands)

    Bialasiewicz, L.; Minca, C.

    2010-01-01

    In this paper we look to the Italian border city of Trieste-at various points in its past, a cosmopolitan port, Austria's urbs europeissima, but also a battleground for competing understandings of territoriality, identity, and belonging and a paragon of the violent application of an ethnoterritorial

  14. Border Security: Barriers Along the U.S. International Border

    Science.gov (United States)

    2006-10-30

    Congressional Research Service ˜ The Library of Congress CRS Report for Congress Received through the CRS Web Order Code RL33659 Border Security...Presidencia,” May 12, 2005. Translation by CRS. Available at [http://www.presidencia.gob.mx/actividades/crecimiento/?contenido=18195& pagina =31]. Last

  15. Proceedings of the 17th EDINEB Conference: Crossing borders in Education and Work-based Learning

    OpenAIRE

    2011-01-01

    17th EDINEB Conference Crossing borders in Education and Work-based Learning June 9 - 11, 2010 Thames Valley University, London, UK During the last few years economics and business education have emerged as one of the largest fields of study in higher education. Simultaneously, the pressing concern for improving the quality of higher education in these fields has led to a definite need for more knowledge about effective instruction methods and tools, as well as about innovation (in terms of b...

  16. Cross-border innovation cooperation

    DEFF Research Database (Denmark)

    Hjaltadóttir, Rannveig Edda; Makkonen, Teemu; Sørensen, Nils Karl

    2014-01-01

    Finding a suitable partner is paramount for the success of innovation cooperation. Thus, this paper sets out to analyse the determinants of cross-border innovation cooperation in Denmark focusing on partner selection. The aim of the article is to investigate determinants of partner selection taking...

  17. Cross-border innovation cooperation

    DEFF Research Database (Denmark)

    Hjaltadóttir, Rannveig Edda; Makkonen, Teemu; Sørensen, Nils Karl

    2014-01-01

    Finding a suitable partner is paramount for the success of innovation cooperation. Thus, this paper sets out to analyse the determinants of cross-border innovation cooperation in Denmark focusing on partner selection. The aim of the article is to investigate determinants of partner selection taki...... of choosing a foreign partner while the decision between foreign partners from different locations is not. The results do however not provide support for the theory of knowledge bases influencing the location of innovation partners....... the location of the partners into account. In particular, the discussion is tied to the notion of varying knowledge bases firms utilize in their innovation creation processes. Firm level data from the 2010 Community Innovation Survey in Denmark was used to analyse cross-border innovation cooperation patterns...... of cross-border innovation cooperation. Accordingly, geographical proximity to international borders is found to have a significant, positive effect on choosing partners within EU. The multivariate probit model shows that the decision of choosing a domestic innovation partner is independent of the choice...

  18. Ground-water conditions in McMullen valley, Maricopa, Yuma and Yavapai Counties, Arizona

    Science.gov (United States)

    Briggs, P.C.

    1969-01-01

    McMullen Valley is in western Arizona about 80 miles northwest of Phoenix (fig. 1). The valley, which is about 48 miles long and 15 miles wide, is bordered on the south by the Harquahala and Little Harquahala Mountains, on the north by the Harcuvar Mountains, and on the west by the Granite Wash Mountains. The major stream in the area is Centennial Wash, an ephemeral tributary of the Gila River; the wash leaves McMullen Valley through Harrisburg Valley at the southwest edge of the area. The groundwater reservoir is the only dependable source of water in McMullen Valley (fig. 1). and it is important that this supply be managed properly in order to obtain the maximum benefit. Therefore, a comprehensive knowledge of all the factors that affect the ground-water reservoir is necessary.

  19. Petrological outline of an area near Sparone (Orco Valley, Western Italian Alps)

    NARCIS (Netherlands)

    Minnigh, L.D.

    1978-01-01

    Several rocktypes and their metamorphic mineral growth are described from an area on the western border of the Sesia-Lanzo Zone in the Orco Valley (NW Italy). It is argued that in some rocks (garnet-rich gneisses and micaceous gneisses) pre-Alpine metamorphic minerals are present, in other rocks (ca

  20. Environmental Degradation in a Dependent Region: The Rio Grande Valley of Mexico and Texas.

    Science.gov (United States)

    Jones, Richard C.

    1999-01-01

    Traces the interrelationships among dependence, environmental degradation, and human health in the Rio Grande Valley of Mexico and Texas. Presents a case study on environmental factors threatening family health in households located on both sides of the border; the health problems can be overcome by addressing restrictive zoning, health services,…

  1. Environmental Degradation in a Dependent Region: The Rio Grande Valley of Mexico and Texas.

    Science.gov (United States)

    Jones, Richard C.

    1999-01-01

    Traces the interrelationships among dependence, environmental degradation, and human health in the Rio Grande Valley of Mexico and Texas. Presents a case study on environmental factors threatening family health in households located on both sides of the border; the health problems can be overcome by addressing restrictive zoning, health services,…

  2. Border governance in Mozambique : The intersection of international border controls, regional integration and cross-border regions

    NARCIS (Netherlands)

    F.L.M. Seda (Fulgêncio)

    2015-01-01

    markdownabstractA tension exists between the interests of states in protecting national security through border controls and those of communities in cross-border regions, to whom frequent border crossing is part of daily life – a necessary part of achieving their own wellbeing. The interplay between

  3. Border Crossing/Entry Data - Boarder Crossing

    Data.gov (United States)

    Department of Transportation — Border Crossing/Entry Data provides summary statistics for incoming crossings at the U.S.-Canadian and the U.S.-Mexican border at the port level. Data are available...

  4. Geometry of Valley Growth

    CERN Document Server

    Petroff, Alexander P; Abrams, Daniel M; Lobkovsky, Alexander E; Kudrolli, Arshad; Rothman, Daniel H

    2011-01-01

    Although amphitheater-shaped valley heads can be cut by groundwater flows emerging from springs, recent geological evidence suggests that other processes may also produce similar features, thus confounding the interpretations of such valley heads on Earth and Mars. To better understand the origin of this topographic form we combine field observations, laboratory experiments, analysis of a high-resolution topographic map, and mathematical theory to quantitatively characterize a class of physical phenomena that produce amphitheater-shaped heads. The resulting geometric growth equation accurately predicts the shape of decimeter-wide channels in laboratory experiments, 100-meter wide valleys in Florida and Idaho, and kilometer wide valleys on Mars. We find that whenever the processes shaping a landscape favor the growth of sharply protruding features, channels develop amphitheater-shaped heads with an aspect ratio of pi.

  5. Purge at West Valley

    Science.gov (United States)

    Mack, Warren

    1977-01-01

    Tells how the adviser of the student newspaper at West Valley College (Saratoga, California) was dismissed after the newspaper published stories based on investigations into alleged wrongdoings by administration members. (GW)

  6. Cross-Border Exposures and Financial Contagion

    NARCIS (Netherlands)

    Degryse, H.A.; Elahi, M.A.; Penas, M.F.

    2009-01-01

    Integrated financial markets provide opportunities for expansion and improved risk sharing, but also pose threats of contagion risk through cross-border exposures. This paper examines cross-border contagion risk over the period 1999-2006. To that purpose we use aggregate cross-border exposures of

  7. Recent trends in cross-border banking

    NARCIS (Netherlands)

    De Haas, Ralph; van Horen, Neeltje; Beck, Thorsten; Casu, Barbara

    2017-01-01

    This chapter identifies a number of recent trends in European cross-border banking. The authors first distinguish between two main modes of international banking: cross-border versus multinational banking. Cross-border banking occurs when a bank in country A lends directly to a borrower in country

  8. The impact of Border policy effect on cross-border ethnic areas

    Science.gov (United States)

    Bie, Q. L.; Zhou, S. Y.; Li, C. S.

    2013-11-01

    Boundary effect analysis is related to border policy making in the cross-border ethnic area. The border effect literatures show that geographic boundaries have obvious impacts on economic, social and cultural relations in both sides of a nation border. Particularly in cross-border ethnic areas, each ethnic group has strong internal spatial structure relevance, and the boundary effect is more obvious. However, most of China's border areas are cross-border ethnic areas, each of border issues is unique. Under this perspective, we analyze the border effects of various boundaries can provide basis for formulating border management policies. For small scale of cross-border ethnic minority areas, how to formulate the boundary management policy is a good question to explore. This paper is demonstrated by a study of the impact of border management policies in Dehong Dai and Jingpo Autonomous Prefecture in Yunnan Province at the border area to Burma. The comparative method is used to analysis the border management policies in past 50 decades for the border area of Yunnan Province .This research aims to define trends within border policy and its influences to national security. This paper also examines Wendy Brown's liberal theory of border management policy. We found that it is not suitable for Sino-Burma border area. The conclusion is that the changes or instability of international economic and political situation has more influence to this cross-border ethnic area, and only innovative policy will be effective in cross-border ethnic area. So the border management policies should reflect the change of international context.

  9. Old Borders and New Bordering Capabilities: Cities as Frontier Zones

    Directory of Open Access Journals (Sweden)

    Saskia Sassen

    2015-12-01

    Full Text Available The global city is a new frontier zone. Deregulation, privatization, and new fiscal and monetary policies create the formal instruments to construct their equivalent of the old military “fort”. The city is also a strategic frontier zone for those who lack power, and allows the making of informal politics. At the same time the border is a mix of regimes, marked by protections and opportunities for corporations and high-level professionals, and implies confinement, capture and detention for migrants. The essay discusses the transformation of the city in a frontier zone and analyses the separation between the capabilities entailed by territoriality and the geographic territory tout court. The analysis focuses on the effects of neoliberal policies that, far from making this a borderless world, have actually multiplied the bordered spaces that allow firms and markets to move across conventional borders. Cities are therefore one of the key sites where new neoliberal norms are made and where new identities emerge.

  10. Reviewing the Spanish-Portuguese border: conflict, interaction and cross-border cooperation

    Directory of Open Access Journals (Sweden)

    Francisco José Calderón Vázquez

    2015-01-01

    Full Text Available European borders, or borders between European Union member states, are historical products that embody the ebbs and flows of European borderlands. These areas are evolving from past struggles and confrontations between European kingdoms toward a future of progressive European integration. Such processes are highly complex, as they involve border deactivation. In this work, we examine the evolution of the Spanish- Portuguese border from the perspective of cross-border interaction.

  11. Internal Border Controls in the European Union

    DEFF Research Database (Denmark)

    Jørgensen, Carsten Willemoes; Sørensen, Karsten Engsig

    2012-01-01

    Recent events, involving inter alia France and Denmark, have stimulated renewed interest in the introduction of different forms of border controls at the internal borders within the European Union. These border control measures are aimed at checking either persons or goods or both. Against...... the background of these events, this article analyses the existing rules regulating controls of persons and goods, and explores how these rules may or may not stand in the way of introducing border controls at the European Union’s internal borders. These events have resulted in a call for reforms of the current...

  12. Internal Border Controls in the European Union

    DEFF Research Database (Denmark)

    Jørgensen, Carsten Willemoes; Sørensen, Karsten Engsig

    2012-01-01

    Recent events, involving inter alia France and Denmark, have stimulated renewed interest in the introduction of different forms of border controls at the internal borders within the European Union. These border control measures are aimed at checking either persons or goods or both. Against...... the background of these events, this article analyses the existing rules regulating controls of persons and goods, and explores how these rules may or may not stand in the way of introducing border controls at the European Union’s internal borders. These events have resulted in a call for reforms of the current...

  13. Languaging the Borders of Europe

    OpenAIRE

    Olivier Kramsch; Kolar Aparna; Huda Degu

    2015-01-01

    Emerging from a discomfort with the blind spots encountered within and across theorizations of language and space in the field of human geography, in this article, we argue for “making space” for conceptualizations that speak from and through the everyday territories of migrants in Europe today. Inspired by a range of writers thinking postcolonially and multi/trans-lingually, the authors draw on their own embodied migrant experience to argue for re-envisioning Europe’s borders through multipl...

  14. Border preserving skin lesion segmentation

    Science.gov (United States)

    Kamali, Mostafa; Samei, Golnoosh

    2008-03-01

    Melanoma is a fatal cancer with a growing incident rate. However it could be cured if diagnosed in early stages. The first step in detecting melanoma is the separation of skin lesion from healthy skin. There are particular features associated with a malignant lesion whose successful detection relies upon accurately extracted borders. We propose a two step approach. First, we apply K-means clustering method (to 3D RGB space) that extracts relatively accurate borders. In the second step we perform an extra refining step for detecting the fading area around some lesions as accurately as possible. Our method has a number of novelties. Firstly as the clustering method is directly applied to the 3D color space, we do not overlook the dependencies between different color channels. In addition, it is capable of extracting fine lesion borders up to pixel level in spite of the difficulties associated with fading areas around the lesion. Performing clustering in different color spaces reveals that 3D RGB color space is preferred. The application of the proposed algorithm to an extensive data-base of skin lesions shows that its performance is superior to that of existing methods both in terms of accuracy and computational complexity.

  15. Cross-border reprogenetic services.

    Science.gov (United States)

    Couture, V; Drouin, R; Tan, S-L; Moutquin, J-M; Bouffard, C

    2015-01-01

    The purpose of this review is to synthesize the current knowledge on the international movement of patients and biopsied embryo cells for pre-implantation genetic diagnosis and its different applications. Thus far, few attempts have been made to identify the specific nature of this phenomenon called 'cross-border reprogenetic services'. There is scattered evidence, both empirical and speculative, suggesting that these services raise major issues in terms of service provision, risks for patients and the children-to-come, the legal liabilities of physicians, as well as social justice. To compile this evidence, this review uses the narrative overview protocol combined with thematic analysis. Five major themes have emerged from the literature at the conjunction of cross-border treatments and reprogenetics: 'scope', 'scale', 'motivations', 'concerns', and 'governance'. Similar themes have already been observed in the case of other medical tourism activities, but this review highlights their singularity with reprogenetic services. It emphasizes the diagnostic and autologous feature of reprogenetics, the constant risk of misdiagnosis, the restriction on certain tests for medically controversial conditions, and the uncertain accessibility of genetic counseling in cross-border settings. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  16. Valley-contrasting orbital angular momentum in photonic valley crystals

    CERN Document Server

    Chen, Xiaodong; Dong, Jianwen

    2016-01-01

    Valley, as a degree of freedom, has been exploited to realize valley-selective Hall transport and circular dichroism in two-dimensional layered materials. On the other hand, orbital angular momentum of light with helical phase distribution has attracted great attention for its unprecedented opportunity to optical communicagtions, atom trapping, and even nontrivial topology engineering. Here, we reveal valley-contrasting orbital angular momentum in all-dielectric photonic valley crystals. Selective excitation of valley chiral bulk states is realized by sources carrying orbital angular momentum with proper chirality. Valley dependent edge states, predictable by nonzero valley Chern number, enable to suppress the inter-valley scattering along zigzag boundary, leading to broadband robust transmission in Z-shape bend without corner morphological optimization. Our work may open up a new door towards the discovery of novel quantum states and the manipulation of spin-orbit interaction of light in nanophotonics.

  17. Quaternary Geochronology, Paleontology, and Archaeology of the Upper San Pedro River Valley, Sonora, Mexico

    Science.gov (United States)

    Gaines, E. P.

    2013-12-01

    This poster presents the results of multi-disciplinary investigations of the preservation and extent of Quaternary fossil-bearing strata in the San Pedro River Valley in Sonora, Mexico. Geologic deposits in the portions of the San Pedro Valley in southern Arizona contain one of the best late Cenozoic fossil records known in North America and the best record of early humans and extinct mammals on the continent. The basin in the U.S. is one of the type locations for the Blancan Land Mammal Age. Hemiphilian and Irvingtonian fossils are common. Rancholabrean remains are widespread. Strata in the valley adjacent to the international border with Mexico have yielded the densest concentration of archaeological mammoth-kill sites known in the western hemisphere. Despite more than 60 years of research in the U.S., however, and the fact that over one third of the San Pedro River lies south of the international boundary, little has been known about the late Cenozoic geology of the valley in Mexico. The study reported here utilized extensive field survey, archaeological documentation, paleontological excavations, stratigraphic mapping and alluvial geochronology to determine the nature and extent of Quaternary fossil-bearing deposits in the portions of the San Pedro Valley in Sonora, Mexico. The results demonstrate that the Plio-Pleistocene fossil -bearing formations known from the valley in Arizona extend into the uppermost reaches of the valley in Mexico. Several new fossil sites were discovered that yielded the remains of Camelids, Equus, Mammuthus, and other Proboscidean species. Late Pleistocene archaeological remains were found on the surface of the surrounding uplands. AMS radiocarbon dating demonstrates the widespread preservation of middle- to late- Holocene deposits. However, the late Pleistocene deposits that contain the archaeological mammoth-kill sites in Arizona are absent in the valley in Mexico, and are now known to be restricted to relatively small portions of

  18. Virgin Valley opal district, Humboldt County, Nevada

    Science.gov (United States)

    Staatz, Mortimer Hay; Bauer, Herman L.

    1951-01-01

    The Virgin Valley opal district, Humboldt County, Nevada, is near the Oregon-Nevada border in the Sheldon Game Refuge. Nineteen claims owned by Jack and Toni Crane were examined, sampled, and tested radiometrically for uranium. Numerous discontinuous layers of opal are interbedded with a gently-dipping series of vitric tuff and ash which is at least 300 ft thick. The tuff and ash are capped by a dark, vesicular basalt in the eastern part of the area and by a thin layer of terrace qravels in the area along the west side of Virgin Valley. Silicification of the ash and tuff has produced a rock that ranges from partly opalized rock that resembles silicified shale to completely altered rock that is entirely translucent, and consists of massive, brown and pale-green opal. Carnotite, the only identified uranium mineral, occurs as fracture coatings or fine layers in the opal; in places, no uranium minerals are visible in the radioactive opal. The opal layers are irregular in extent and thickness. The exposed length of the layers ranges from 8 to 1, 200 ft or more, and the thickness of the layers ranges from 0. 1 to 3. 9 ft. The uranium content of each opal layer, and of different parts of the same layer, differs widely. On the east side of Virgin Valley four of the seven observed opal layers, nos. 3, 4, 5, and 7, are more radioactive than the average; and the uranium content ranges from 0. 002 to 0. 12 percent. Two samples, taken 5 ft apart across opal layer no. 7, contained 0. 003 and 0. -049 percent uranium. On the west side of the valley only four of the fifteen observed opal layers, nos; 9, , 10, 14, and 15, are more radioactive than the average; and the uranium content ranges from 0. 004 to 0. 047 percent. Material of the highest grade was found in a small discontinuous layer of pale-green opal (no. 4) on the east side of Virgin Valley. The grade of this layer ranged from 0. 027 to 0. 12 percent uranium.

  19. Towards a cross-border hydrogeological model: harmonized data integration within the H3O-projects

    Science.gov (United States)

    Heyvaert, Vanessa M. A.; Vernes, Ronald W.; Deckers, Jef; Bogemans, Frieda; Deceukelaire, Marleen; Den Dulk, Maryke; Doornenbal, Hans C.; Dusar, Michiel; Hummelman, Jan; Kiden, Patrick; Lanckacker, Timothy; Menkovic, Armin; Meyvis, Bruno; Munsterman, Dirk K.; Reindersma, Reinder N.; ten Veen, Johan H.; van de Ven, Tamara J. M.; Walstra, Jan; Westerhoff, Wim E.; Witmans, Nora

    2016-04-01

    The sustainable use and management of natural resources in border regions requires unambiguous geological information from neighbouring countries. However, the available data often lack compatibility and the same level of detail across borders. Various stakeholders in the Netherlands and Flanders expressed their interest to harmonize the (hydro) geological models in the shared border region. Accordingly, the first H3O project was initiated in March 2012, focussing on the Roer Valley Graben across the Dutch-Flemish border. A second project (H3O-Campine area) set off in April 2015 and deals with the adjacent Campine area. Aim of these successive projects was (is) to produce cross-border, up-to-date, three-dimensional geological and hydrogeological models of the Cenozoic deposits. Existing (hydro) geological data (boreholes, well logs, seismic data, fault traces, geological maps and models) are collected, re-interpreted according to a harmonized lithostratigraphic scheme and fed into the 3D modelling process. Results of the first H3O-Roer Valley Graben project include: • A correlation scheme between Dutch and Belgian/Flemish (hydro) geological units; • A consistent fault model of the Roer Valley Graben; • Geometrically and stratigraphically consistent geological and hydrogeological models of the Cenozoic deposits in the Roer Valley Graben across the Dutch-Flemish border. The resulting 3D models can be considered as a state-of-the-art reference for the subsurface structure of the project area and can be used as a base for cross-border management of natural resources. The correlation scheme serves as a guideline for present (H3O-Campine area) and future cross-border projects. The H3O projects are carried out by a partnership between TNO - Geological Survey of the Netherlands, VITO and the Geological Survey of Belgium. The H3O models will be available in the public domain via the online data portals of DOV (Databank Ondergrond Vlaanderen) and DINOloket (Data en

  20. Externalization and Border-induced Displacement

    DEFF Research Database (Denmark)

    Lemberg-Pedersen, Martin

    This multidisciplinary Ph.D. dissertation engages with the timely and much debated topic of European border control. The first two chapters discuss several moral arguments claiming that border control facilitates solidarity and autonomy. These are assessed with reference to central debates in pol...... in-depth research of the privatization of border control through the cases of G4S, Finmeccanica and the EU’s EUROSUR system. The chapter links externalization of border control with European state-driven export markets and shows how states’ export credit agencies, the arms industry...... and the international banking sector all have overlapping interests in privatized border control. Chapter five identifies the multiple flows, technological, personnel, funds and data, maintaining Europe’s border infrastructure, As migrants are circulated between detention camps and countries, dumped in deserts...

  1. Aymara paradiplomacy: Empowerment in the border

    Directory of Open Access Journals (Sweden)

    Gilberto Aranda Bustamante

    2017-01-01

    Full Text Available This article analyzes the border paradiplomacy used by more than 50 municipalities from Bolivia, Chile and Peru, named “Aymaras without Borders Strategic Alliance”. In spite of the differentiated historical construction of national identities, according to a literature review, it could be argued that there is an unprecedented border relation between these three countries. Furthermore, it is possible to conclude that this non-violent strategy has been successful in the last 15 years.

  2. A model for international border management systems.

    Energy Technology Data Exchange (ETDEWEB)

    Duggan, Ruth Ann

    2008-09-01

    To effectively manage the security or control of its borders, a country must understand its border management activities as a system. Using its systems engineering and security foundations as a Department of Energy National Security Laboratory, Sandia National Laboratories has developed such an approach to modeling and analyzing border management systems. This paper describes the basic model and its elements developed under Laboratory Directed Research and Development project 08-684.

  3. Silicon Valley's Turnaround

    Institute of Scientific and Technical Information of China (English)

    Joseph Leu

    2006-01-01

    @@ During Silicon Valley's dramatic economic growth fueled by the Internet boom and business investment in information technology, employment in the region's high-tech sec tor tripled between 1995 and 2000. The economic boom gave rise to many new firms,drawing em ployees into high-tech jobs from other regions and other industries.

  4. Breathing Valley Fever

    Centers for Disease Control (CDC) Podcasts

    2014-02-04

    Dr. Duc Vugia, chief of the Infectious Diseases Branch in the California Department of Public Health, discusses Valley Fever.  Created: 2/4/2014 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 2/5/2014.

  5. Boyne Valley Tombs

    Science.gov (United States)

    Prendergast, Frank

    The passage tombs of the Boyne Valley exhibit the greatest level of development of the megalithic tomb building tradition in Ireland in terms of their morphology, embellishment, burial tradition, grave goods, clustering, and landscape siting. This section examines these characteristics and gives a summary archaeoastronomical appraisal of their orientation and detected astronomical alignment.

  6. Red (Planet) River Valleys

    Institute of Scientific and Technical Information of China (English)

    陈淑娴

    1995-01-01

    Mars today is a frozen desert,but the photos sent back by the Mariner and Viking probes in the 1970s indicate its past was less bleak and more Earth-like. The images showed sinuous channels and valleys that were al-

  7. Phenotypic covariance at species’ borders

    Science.gov (United States)

    2013-01-01

    Background Understanding the evolution of species limits is important in ecology, evolution, and conservation biology. Despite its likely importance in the evolution of these limits, little is known about phenotypic covariance in geographically marginal populations, and the degree to which it constrains, or facilitates, responses to selection. We investigated phenotypic covariance in morphological traits at species’ borders by comparing phenotypic covariance matrices (P), including the degree of shared structure, the distribution of strengths of pair-wise correlations between traits, the degree of morphological integration of traits, and the ranks of matricies, between central and marginal populations of three species-pairs of coral reef fishes. Results Greater structural differences in P were observed between populations close to range margins and conspecific populations toward range centres, than between pairs of conspecific populations that were both more centrally located within their ranges. Approximately 80% of all pair-wise trait correlations within populations were greater in the north, but these differences were unrelated to the position of the sampled population with respect to the geographic range of the species. Conclusions Neither the degree of morphological integration, nor ranks of P, indicated greater evolutionary constraint at range edges. Characteristics of P observed here provide no support for constraint contributing to the formation of these species’ borders, but may instead reflect structural change in P caused by selection or drift, and their potential to evolve in the future. PMID:23714580

  8. Border Crossing/Entry Data - Border Crossing/Entry Data Time Series tool

    Data.gov (United States)

    Department of Transportation — The dataset is known as “Border Crossing/Entry Data.” The Bureau of Transportation Statistics (BTS) Border Crossing/Entry Data provides summary statistics to the...

  9. Bringing Silicon Valley inside.

    Science.gov (United States)

    Hamel, G

    1999-01-01

    In 1998, Silicon Valley companies produced 41 IPOs, which by January 1999 had a combined market capitalization of $27 billion--that works out to $54,000 in new wealth creation per worker in a single year. Multiply the number of employees in your company by $54,000. Did your business create that much new wealth last year? Half that amount? It's not a group of geniuses generating such riches. It's a business model. In Silicon Valley, ideas, capital, and talent circulate freely, gathering into whatever combinations are most likely to generate innovation and wealth. Unlike most traditional companies, which spend their energy in resource allocation--a system designed to avoid failure--the Valley operates through resource attraction--a system that nurtures innovation. In a traditional company, people with innovative ideas must go hat in hand to the guardians of the old ideas for funding and for staff. But in Silicon Valley, a slew of venture capitalists vie to attract the best new ideas, infusing relatively small amounts of capital into a portfolio of ventures. And talent is free to go to the companies offering the most exhilarating work and the greatest potential rewards. It should actually be easier for large, traditional companies to set up similar markets for capital, ideas, and talent internally. After all, big companies often already have extensive capital, marketing, and distribution resources, and a first crack at the talent in their own ranks. And some of them are doing it. The choice is yours--you can do your best to make sure you never put a dollar of capital at risk, or you can tap into the kind of wealth that's being created every day in Silicon Valley.

  10. The Borders of "Shopluk" and/or Shops without Borders

    Directory of Open Access Journals (Sweden)

    P. Hristov

    2015-08-01

    Full Text Available A historic and cultural region exists at the heart of the Balkans, known in geographic and ethnographic research as Shopluk. This is a region in which, over the last 150 years, state boundaries were moved several times as a result of 5 different wars. Today, the historic Shopluk is where the borders of three nations converge – Republic of Bulgaria, Republic of Serbia and the Republic of Macedonia – and, during the last decade, the region was declared one of the “Euroregions” on the Balkans. Despite the historical similarities in traditional culture and language of this population, in the 19th century it became a subject of nationalist ambitions and a propaganda “wars” between the new national states of Serbia and Bulgaria. The joining of Bulgarian-inhabited parts of Shopluk (the regions of today’s Dimitrovgrad and Bosilegrad in Serbia to the Kingdom of Serbs, Slovenes and Croats in 1919 created a long-lasting tension between the two countries, some residues of which can be felt in everyday relations even today. On the other hand, it has been a century-long tradition for men in this region to take part in seasonal labour migrations all over the Balkan Peninsula, despite political borders. In this way, preserving their cultural and lingual specifics, the groups of seasonal workers – migrants from Shopluk, became a bridge for cultural interaction and exchange with other regions in the neighbour countries. Even though today the population of Shopluk exhibits different national identities, historical similarities in culture and language can turn the Euroregion between Nish, Sofia and Skopje from one of the poorest on the Balkans to one of the most integrated and prosperous.

  11. Border Pedagogy Cafes: Grassroots Conversations that Matter

    Science.gov (United States)

    Necochea, Juan; Cline, Zulmara

    2008-01-01

    This exploratory study uses qualitative methods to analyze the impact of conversations in the Border Pedagogy "Cafes" on more than 500 binational educators from the Tijuana/San Diego area on the U.S.-Mexico border. Four important themes emerged from the analysis that describe the impact of the cafes and offer a strong foundation on which…

  12. Sprouting of dormant buds on border trees

    Science.gov (United States)

    G.R., Jr. Trimble; H. Clay Smith; H. Clay Smith

    1970-01-01

    As part of an evaluation of silvicultura1 systems used in managing Appalachian hardwoods, we are studying degrade of border trees surrounding harvest-cut openings made in the patch cutting and group selection systems. One facet of this research dealt with determining what portion of visually evident dormant buds on border tree boles sprouted when the openings were cut...

  13. Border Pedagogy Cafes: Grassroots Conversations that Matter

    Science.gov (United States)

    Necochea, Juan; Cline, Zulmara

    2008-01-01

    This exploratory study uses qualitative methods to analyze the impact of conversations in the Border Pedagogy "Cafes" on more than 500 binational educators from the Tijuana/San Diego area on the U.S.-Mexico border. Four important themes emerged from the analysis that describe the impact of the cafes and offer a strong foundation on which…

  14. Apostilles on the symbol of the desert in cultural identity of Mexicali and its Valley

    Directory of Open Access Journals (Sweden)

    Hugo Méndez Fierr

    2011-01-01

    Full Text Available The desert territory and the culture of the inhabitants of the border zone that occupies Mexicali and its agricultural valley have been transformed and in this way they have generated several cultural characteristics that have contri–buted to the construction of a regional identity with anchorages in the arid geography. Indeed, the central objective of this article is to think the relation established between desert and culture, from a theoretical–conceptual perspective and to contribute, in this way, to the construction of a general frame that can be useful for other empiricist researches about the cultural identity in Mexicali and its agricultural valley.

  15. Competitiveness of the Economies of Border Regions

    Directory of Open Access Journals (Sweden)

    Bazhenov Yuri

    2009-06-01

    Full Text Available The article is dedicated to the problem of competitiveness of border regions as subjects of the Russian Federation having specific characteristics. The authors focus on the stages, during which border regions build their competitiveness, as well as analyse certain indices characterizing it. They examine the role of these regions in the development of international trade and economic relations, cross-border cooperation and international integration, taking the North-west federal district and the Republic of Karelia as a case-study. The article describes the mechanisms of building and increasing competitiveness of border regions in today’s Russia both in general and, particularly, in the Republic of Karelia as a border region of the North-west federal district.

  16. A polyhedral approach to computing border bases

    CERN Document Server

    Braun, Gábor

    2009-01-01

    Border bases can be considered to be the natural extension of Gr\\"obner bases that have several advantages. Unfortunately, to date the classical border basis algorithm relies on (degree-compatible) term orderings and implicitly on reduced Gr\\"obner bases. We adapt the classical border basis algorithm to allow for calculating border bases for arbitrary degree-compatible order ideals, which is \\emph{independent} from term orderings. Moreover, the algorithm also supports calculating degree-compatible order ideals with \\emph{preference} on contained elements, even though finding a preferred order ideal is NP-hard. Effectively we retain degree-compatibility only to successively extend our computation degree-by-degree. The adaptation is based on our polyhedral characterization: order ideals that support a border basis correspond one-to-one to integral points of the order ideal polytope. This establishes a crucial connection between the ideal and the combinatorial structure of the associated factor spaces.

  17. Refuge in Belen Valley

    OpenAIRE

    Arias-Caballero, Diego Andres

    2013-01-01

    A story about love and desire to imagine architecture in a peruvian landscape. On one hand, 'Refuge in Belen Valley' is a thesis about discovering the ideal conditions that architecture should meet in a landscape, conditions that approach the idea of an offering of man rather than a conditioning for man. On the other, it is a thesis about thinking architecture as a composition derived out of material properties, emotional intentions, inhabiting possibilities and counterpoint, the arrangement ...

  18. Building China's Silicon Valley

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ Ellis Rahhal and Andrew Schorr sit across from each other in the minimalist office of their tech startup,all clean lines and white linoleum floors.A pair of toothbrushes hint at many a late night hunched over their computers.Outside the window,the sun is slowly setting behind jagged mountains.The scene is classic Silicon Valley.But Rahhal and Schorr aren't in California.They're in suburban Beijing.

  19. Mississippi Alluvial Valley

    Science.gov (United States)

    Reinecke, K.J.; Kaminski, R.M.; Moorhead, D.J.; Hodges, J.D.; Nasser, J.R.; Smith, L.M.; Pederson, R.L.; Kaminski, R.M.

    1989-01-01

    Available data are summarized according to the following major topics: (1) characteristics of the Mississippi Alluvial Valley (MAV); (2) waterfowl populations associated with the MAV; (3) habitat requirements of migrating and wintering waterfowl in the MAV; (4) current habitat management practices in the MAV, including croplands, moist-soil impoundments, and forested wetlands; (5) status and classification of winter habitat in the MAV; and (6) research and management information needs.

  20. Green valley galaxies

    Directory of Open Access Journals (Sweden)

    Salim S.

    2014-01-01

    Full Text Available The “green valley” is a wide region separating the blue and the red peaks in the ultraviolet-optical color magnitude diagram, first revealed using GALEX UV photometry. The term was coined by Christopher Martin (Caltech, in 2005. Green valley highlights the discriminating power of UV to very low relative levels of ongoing star formation, to which the optical colors, including u−r, are insensitive. It corresponds to massive galaxies below the star-forming, “main” sequence, and therefore represents a critical tool for the study of the quenching of star formation and its possible resurgence in otherwise quiescent galaxies. This article reviews the results pertaining to (predominantly disk morphology, structure, environment, dust content and gas properties of green valley galaxies in the local universe. Their relationship to AGN is also discussed. Attention is given to biases emerging from defining the “green valley” using optical colors. We review various evolutionary scenarios and we present evidence for a new one, the quasi-static view of the green valley, in which the majority (but not all of galaxies currently in the green valley were only partially quenched in the distant past and now participate in a slow cosmic decline of star formation, which also drives down the activity on the main sequence, presumably as a result of the dwindling accretion/cooling onto galaxy disks. This emerging synthetic picture is based on the findings from Fang et al. (2012, Salim et al. (2012 and Martin et al. (2007, as well as other results.

  1. Revitalising Borders: Memory, Mobility and Materiality in a Latvian-Russian Border Region

    Directory of Open Access Journals (Sweden)

    Aija Lulle

    2016-04-01

    Full Text Available In this paper I investigate how an international border is 'revitalised' in political discourses as opposed to lived experiences. Based on narratives I have collected from border dwellers on both sides of the current border between Latvia and Rus-sia and placing them into a broader context of current border debates, I analyse how geographical and social mobility is remembered from Soviet times and reworked in current contexts. I argue that while politically the border is revitalised through aban-doning and forgetting the Soviet past and through the idea of constant threats in the future, locally it is revitalised through giving a life to the abandoned: memories of 'vigorous times' in life-courses and material things. People who dwell at the border did not move themselves: the international border moved several times in one cen-tury leaving border dwellers' memories and significant places on the 'other' side. I focus on how these borders were crossed in the past, how they are (not crossed now, and the social meanings assigned to these circumstances. In the current con-text I follow diverse paths of reasoning that describe how the uneven flow of goods and people through the Latvian-Russian border shapes the power dynamic against which the people living in the border area used to reconstruct imaginaries of 'Soviet times' versus 'Europe' and 'vigorous times' versus decline.

  2. CROSS-BORDER COOPERATION AT THE EXTERNAL BORDERS OF EUROPEAN UNION

    Directory of Open Access Journals (Sweden)

    Ana-Maria Popescu (Stîngaciu

    2012-01-01

    Full Text Available To cooperate means to work and act together for a common advantage or purpose. The cooperation across borders, between different countries and regions sharing the same border, to reach common goals, is aimed to increase the overall competitiveness of the regional economy and to improve the quality of living standards for the these areas. European Union’s programmes are good accelerators for cross-border cooperation. The paper is focused on cross-border cooperation programmes at the external border of the EU and the expected impact of the allocated funds. The cross-border cooperation programmes are creating the conditions to exist the relationships between different social and economic stakeholders in order to contribute to economic and social development by supporting SME development, innovation, human resources development, civil society and local communities, increasing educational, social, cultural and sporting exchanges, improving local governance in different cross-border areas.

  3. Communication Strategy of Transboundary Air Pollution Findings in a US-Mexico Border XXI Program Project

    Science.gov (United States)

    Mukerjee, Shaibal

    2002-01-01

    From 1996 to 1997, the US Environmental Protection Agency (EPA) and the Texas Natural Resource Conservation Commission (TNRCC) conducted an air quality study known as the Lower Rio Grande Valley Transboundary Air Pollution Project (TAPP). The study was a US-Mexico Border XXI program project and was developed in response to local community requests on a need for more air quality measurements and concerns about the health impact of local air pollutants; this included concerns about emissions from border-dependent industries in Mexico, known as maquiladoras. The TAPP was a follow-up study to environmental monitoring done by EPA in this area in 1993 and incorporated scientific and community participation in development, review of results, and public presentation of findings. In spite of this, critical remarks were leveled by community activists against the study's preliminary "good news" findings regarding local air quality and the influence of transboundary air pollution. To resolve these criticisms and to refine the findings to address these concerns, analyses included comparisons of daily and near real-time measurements to TNRCC effects screening levels and data from other studies along with wind sector analyses. Reassessment of the data suggested that although regional source emissions occurred and outliers of elevated pollutant levels were found, movement of air pollution across the border did not appear to cause noticeable deterioration of air quality. In spite of limitations stated to the community, the TAPP was presented as establishing a benchmark to assess current and future transboundary air quality in the Valley. The study has application in Border XXI Program or other air quality studies where transboundary transport is a concern since it involved interagency coordination, public involvement, and communication of scientifically sound results for local environmental protection efforts.

  4. Analysis of point source emissions in the Texas-Mexico border region

    Energy Technology Data Exchange (ETDEWEB)

    Martinez, A.; Deshpande, B. [Texas A& amp; M University, Kingsville, TX (United States)

    2009-07-01

    Pollutant emissions in the Texas-Mexico border were investigated using an emission database that covers 25 Texas counties and the states of Coahuila, Chihuahua, Nuevo Leon and Tamaulipas in Mexico. Major emissions are from energy generation, mainly from two coal-fired facilities in Coahuila, which also generate most of carbon dioxide. Texas exhibits a larger concentration of sources; around Laredo and the Lower Rio Grande Valley and a sugarcane mill is a significant contributor to particles emissions. In Mexico the minerals and metals industries are the second major contributors to emissions, especially particles. Fossil fuel production is the main source of VOCs.

  5. Optical manipulation of valley pseudospin

    Science.gov (United States)

    Ye, Ziliang; Sun, Dezheng; Heinz, Tony F.

    2017-01-01

    The coherent manipulation of spin and pseudospin underlies existing and emerging quantum technologies, including quantum communication and quantum computation. Valley polarization, associated with the occupancy of degenerate, but quantum mechanically distinct valleys in momentum space, closely resembles spin polarization and has been proposed as a pseudospin carrier for the future quantum electronics. Valley exciton polarization has been created in the transition metal dichalcogenide monolayers using excitation by circularly polarized light and has been detected both optically and electrically. In addition, the existence of coherence in the valley pseudospin has been identified experimentally. The manipulation of such valley coherence has, however, remained out of reach. Here we demonstrate all-optical control of the valley coherence by means of the pseudomagnetic field associated with the optical Stark effect. Using below-bandgap circularly polarized light, we rotate the valley exciton pseudospin in monolayer WSe2 on the femtosecond timescale. Both the direction and speed of the rotation can be manipulated optically by tuning the dynamic phase of excitons in opposite valleys. This study unveils the possibility of generation, manipulation, and detection of the valley pseudospin by coupling to photons.

  6. Session: Long Valley Exploratory Well

    Energy Technology Data Exchange (ETDEWEB)

    Tennyson, George P. Jr.; Finger, John T.; Eichelberger, John C.; Hickox, Charles E.

    1992-01-01

    This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of four presentations: ''Long Valley Exploratory Well - Summary'' by George P. Tennyson, Jr.; ''The Long Valley Well - Phase II Operations'' by John T. Finger; ''Geologic results from the Long Valley Exploratory Well'' by John C. Eichelberger; and ''A Model for Large-Scale Thermal Convection in the Long Valley Geothermal Region'' by Charles E. Hickox.

  7. Social Networks in Silicon Valley

    Institute of Scientific and Technical Information of China (English)

    Joseph Leu

    2006-01-01

    @@ Social network is a dominant, distinguishing characteristic of Silicon Valley. Because innovation entails coping with a high degree of uncertainty,such innovation is particularly dependent on networks.

  8. Local border traffic as an efficient tool for developing cross-border cooperation

    Directory of Open Access Journals (Sweden)

    Gumenyuk Ivan

    2017-01-01

    Full Text Available Local border traffic (LBT is a tool for cooperation between the EU member states and neighbouring countries. It emerged as a measure to mitigate the barrier effect of the EU’s external border. In 2006, the European Parliament authorised the EU member states to conclude bilateral agreements on a simplified border crossing regime in border areas. This article analyses local border traffic as a cross-border cooperation tool. The territory described in the study includes the external borders of the EU (and Norway with the Russian Federation and the Republic of Belarus. The article will be of interest to specialists in international and, particularly, in cross-border cooperation. The authors analyse the mechanism of local border traffic and identify possible trends based on the general socioeconomic situation and foreign policy background in Russia, Belarus, and the EU (Norway. The article employs the cartographic method to enhance the visual component of the study. It is concluded that the LBT mechanism is effective and it has a positive effect on the development of border contacts between countries. There is a need to continue the dialogue between Russia, Belarus and the EU countries on both expanding the geographical scope of the LBT mechanism and ensuring its qualitative development.

  9. Borders, boundaries and desirable wishes

    Directory of Open Access Journals (Sweden)

    Luca Pinciaroli

    2015-05-01

    Full Text Available “Borders, boundaries and desirable wishes” is the title of the residential workshop offered to a group of young adults (aged 18-25 of the Centro di Salute Mentale (Mental Health Center of the DSM Basaglia of ASL TO2 in Turin. The idea of the workshop, the definition of the objectives and the topics, which are clearly expressed in the title, come from the work of the team dedicated to group psychotherapies, which has been offering group psychodrama sessions to young adults of this age since 2008. In the delicate move to the adult age, these young adults are lost and stuck in static realities where it is not possible to open up to the dimension of desire nor to the transforming encounter with the Other, since they didn’t have the experience of boundaries and lack. These two elements are necessary to acquire the ability to make projects for oneself. During the workshop the following instruments were used: group, psychodrama and art therapy. The group, as a paternal function, ensured the presence of safe boundaries enabling individuals to experiment; psychodrama and art therapy enabled the bodies to experience encounters and transformations, using doing as a metaphor for the movement against the inhibition of doing and as a way to show oneself to the Other and be able to see the Other. 

  10. Languaging the Borders of Europe

    Directory of Open Access Journals (Sweden)

    Olivier Kramsch

    2015-11-01

    Full Text Available Emerging from a discomfort with the blind spots encountered within and across theorizations of language and space in the field of human geography, in this article, we argue for “making space” for conceptualizations that speak from and through the everyday territories of migrants in Europe today. Inspired by a range of writers thinking postcolonially and multi/trans-lingually, the authors draw on their own embodied migrant experience to argue for re-envisioning Europe’s borders through multiple languaging practices. “Languaging”, in this view, takes linguistic practices in a migrant context as an inherently prosthetic activity, whereby any dominant, national host language is inevitably subject to the subterranean rumblings of all the languages a migrant brings with her on her global journeys. Conceived as being saturated with prosthetic “absence(s”, migrant languaging practices rework cultural geography’s bounded, inward-looking, and security-fixated understanding of the language/territory nexus, the better to open a vital space for re-envisioning language’s everyday territories as sites for translational solidarity and becoming.

  11. Semantic Borders and Incomplete Understanding.

    Science.gov (United States)

    Silva-Filho, Waldomiro J; Dazzani, Maria Virgínia

    2016-03-01

    In this article, we explore a fundamental issue of Cultural Psychology, that is our "capacity to make meaning", by investigating a thesis from contemporary philosophical semantics, namely, that there is a decisive relationship between language and rationality. Many philosophers think that for a person to be described as a rational agent he must understand the semantic content and meaning of the words he uses to express his intentional mental states, e.g., his beliefs and thoughts. Our argument seeks to investigate the thesis developed by Tyler Burge, according to which our mastery or understanding of the semantic content of the terms which form our beliefs and thoughts is an "incomplete understanding". To do this, we discuss, on the one hand, the general lines of anti-individualism or semantic externalism and, on the other, criticisms of the Burgean notion of incomplete understanding - one radical and the other moderate. We defend our understanding that the content of our beliefs must be described in the light of the limits and natural contingencies of our cognitive capacities and the normative nature of our rationality. At heart, anti-individualism leads us to think about the fact that we are social creatures, living in contingent situations, with important, but limited, cognitive capacities, and that we receive the main, and most important, portion of our knowledge simply from what others tell us. Finally, we conclude that this discussion may contribute to the current debate about the notion of borders.

  12. Border Malaria Associated with Multidrug Resistance on Thailand-Myanmar and Thailand-Cambodia Borders: Transmission Dynamic, Vulnerability, and Surveillance

    National Research Council Canada - National Science Library

    Bhumiratana, Adisak; Intarapuk, Apiradee; Sorosjinda-Nunthawarasilp, Prapa; Maneekan, Pannamas; Koyadun, Surachart

    2013-01-01

    ... of increased incidence in transmission prone areas along these borders, as the result of interconnections of human settlements and movement activities, cross-border population migrations, ecological...

  13. Synthetic River Valleys

    Science.gov (United States)

    Brown, R.; Pasternack, G. B.

    2011-12-01

    The description of fluvial form has evolved from anecdotal descriptions to artistic renderings to 2D plots of cross section or longitudinal profiles and more recently 3D digital models. Synthetic river valleys, artificial 3D topographic models of river topography, have a plethora of potential applications in fluvial geomorphology, and the earth sciences in general, as well as in computer science and ecology. Synthetic river channels have existed implicitly since approximately the 1970s and can be simulated from a variety of approaches spanning the artistic and numerical. An objective method of synthesizing 3D stream topography based on reach scale attributes would be valuable for sizing 3D flumes in the physical and numerical realms, as initial input topography for morphodynamic models, stream restoration design, historical reconstruction, and mechanistic testing of interactions of channel geometric elements. Quite simply - simulation of synthetic channel geometry of prescribed conditions can allow systematic evaluation of the dominant relationships between river flow and geometry. A new model, the control curve method, is presented that uses hierarchically scaled parametric curves in over-lapping 2D planes to create synthetic river valleys. The approach is able to simulate 3D stream geometry from paired 2D descriptions and can allow experimental insight into form-process relationships in addition to visualizing past measurements of channel form that are limited to two dimension descriptions. Results are presented that illustrate the models ability to simulate fluvial topography representative of real world rivers as well as how channel geometric elements can be adjusted. The testing of synthetic river valleys would open up a wealth of knowledge as to why some 3D attributes of river channels are more prevalent than others as well as bridging the gap between the 2D descriptions that have dominated fluvial geomorphology the past century and modern, more complete, 3D

  14. Borders in Europe: From history to everyday life

    Directory of Open Access Journals (Sweden)

    Narcís Bassols

    2017-01-01

    Full Text Available

    This article reflects on European borders and their everyday dynamics from a cross-border perspective. The article begins with a discussion of recent events that question current border policies in the European Union, reviews the literature on borders and border territories, and finally moves on to a discussion of the everyday effects of cross-border practices on the inhabitants of border spaces. Occasional reference is made to borders in the Americas to complete the picture of this topic. Although the issue of security is indeed relevant, we focus on the economic and social dimensions of cooperation. Three aspects are essential for border residents who attempt to use the advantages of the territories for their global nature: work, shopping, and place of residence. In conclusion, there has been a tendency toward the softening of borders and greater integration of border zones in the European Union.

  15. Silicon Valley Lifestyle

    Institute of Scientific and Technical Information of China (English)

    Joseph Leu

    2005-01-01

    @@ As we embrace the rapid developments of the new media age,competitiveness in the field of internet and computer technology is an increasingly crucial factor in stimulating new business,jobs and new industry in the region.Accelerating advancements in new media,internet,software and computer technologies offer new commercial opportunities and sources of economic revenue. Silicon Valley has been a model of the new age since its existence.While the dream place not only has a unique business model,but also has a very special lifestyle.

  16. The U.S.-Mexico Border Infectious Disease Surveillance Project: Establishing Binational Border Surveillance

    Science.gov (United States)

    Waterman, Stephen; Lucas, Carlos Alvarez; Falcon, Veronica Carrion; Morales, Pablo Kuri; Lopez, Luis Anaya; Peter, Chris; Gutiérrez, Alejandro Escobar; Gonzalez, Ernesto Ramirez; Flisser, Ana; Bryan, Ralph; Valle, Enrique Navarro; Rodriguez, Alfonso; Hernandez, Gerardo Alvarez; Rosales, Cecilia; Ortiz, Javier Arias; Landen, Michael; Vilchis, Hugo; Rawlings, Julie; Leal, Francisco Lopez; Ortega, Luis; Flagg, Elaine; Conyer, Roberto Tapia; Cetron, Martin

    2003-01-01

    In 1997, the Centers for Disease Control and Prevention, the Mexican Secretariat of Health, and border health officials began the development of the Border Infectious Disease Surveillance (BIDS) project, a surveillance system for infectious diseases along the U.S.-Mexico border. During a 3-year period, a binational team implemented an active, sentinel surveillance system for hepatitis and febrile exanthems at 13 clinical sites. The network developed surveillance protocols, trained nine surveillance coordinators, established serologic testing at four Mexican border laboratories, and created agreements for data sharing and notification of selected diseases and outbreaks. BIDS facilitated investigations of dengue fever in Texas-Tamaulipas and measles in California–Baja California. BIDS demonstrates that a binational effort with local, state, and federal participation can create a regional surveillance system that crosses an international border. Reducing administrative, infrastructure, and political barriers to cross-border public health collaboration will enhance the effectiveness of disease prevention projects such as BIDS. PMID:12533288

  17. Elastic and hegemonic borders and discourse theory: Mexico’s southern border

    Directory of Open Access Journals (Sweden)

    Jorge Marengo Camacho

    2015-12-01

    Full Text Available Discourse theory is useful for understanding the creation of borders, whether material or imaginary. This paper addresses three situations on Mexico’s southern border between 2000 and 2015 in which elements of discourse theory may be applied. The outcomes were the following: 1 correlations may be made between the elements of the discourse moving from the northern to the southern border, but not in the opposite direction; 2 the process of securitising the discourse about migrants is continuous, and new securitising elements are regularly added; 3 an “elastic borders” phenomenon exists, where borders extend or retract, thereby creating new border regions; and 4 discourses around the southern border are constructed with more pejorative elements than the northern, despite the fact that crime rates are higher in the north.

  18. CROSS-BORDER PROJECTS – MEANS FOR SUSTAINABLE TOURISM DEVELOPMENT ALONG THE ROMANIAN-HUNGARIAN BORDER

    Directory of Open Access Journals (Sweden)

    Cătălina-Maria BÂTEA (BOTA

    2014-12-01

    Full Text Available The purpose of this paper is to emphasize the linkage between establishing crossborder relations and tourism development by focusing on ten tourism projects implemented under Hungary-Romania Cross-Border Co-operation Programme (2007-2013. The study area comprises the two neighbouring counties of Satu Mare and Szabolcs-Szatmár-Bereg, the border connecting two areas characterised by social and economic similarities. Building on a solid foundation, as the first Hungarian-Romanian cross-border initiatives were launched nearly two decades ago, the two counties work together towards the shared aim of developing business infrastructure, cross-border trade, culture and tourism. The present study examines the relevance of cross-border projects viewed from the perspective of sustainable tourism development in two peripheral counties featuring similar resources. Moreover, the investigation is based on consultation of project documents, reports and promotional materials, against the theoretical framework of cross-border cooperation and regional development.

  19. Networks communities within and across borders

    CERN Document Server

    Cerina, Federica; Pammolli, Fabio; Riccaboni, Massimo

    2013-01-01

    We investigate the impact of borders on the topology of spatially embedded networks. Indeed territorial subdivisions and geographical borders significantly hamper the geographical span of networks thus playing a key role in the formation of network communities. This is especially important in scientific and technological policy making and highlights the interplay of the internationalization pressure toward a global innovation system against the administrative borders imposed by the national and continental institutions. In this study we introduce an outreach index to quantify the impact of borders on the community structure and apply it to the case of the European and US patent co-inventors networks. We find that (a) the US connectivity decays as a power of distance, whereas we observe a faster exponential decay for Europe; (b) European network communities essentially correspond to nations and contiguous regions while US communities span multiple states across the whole country without any characteristic geog...

  20. Externalization and Border-induced Displacement

    DEFF Research Database (Denmark)

    Lemberg-Pedersen, Martin

    This multidisciplinary Ph.D. dissertation engages with the timely and much debated topic of European border control. The first two chapters discuss several moral arguments claiming that border control facilitates solidarity and autonomy. These are assessed with reference to central debates...... seeking children in Denmark is assessed as a form of liberal nationalism. Several problematic features with this system are discussed, such as the lacking Danish implementation of the Convention of the Rights of the Child, and the use of cultural generalizations in case evaluations. Chapter four conducts...... and the international banking sector all have overlapping interests in privatized border control. Chapter five identifies the multiple flows, technological, personnel, funds and data, maintaining Europe’s border infrastructure, As migrants are circulated between detention camps and countries, dumped in deserts...

  1. Integrated care across borders: possibilities and complexities

    Directory of Open Access Journals (Sweden)

    Silvia Evers

    2001-09-01

    Full Text Available The main purpose of this practice paper is to describe and analyse the possibilities and complexities of integrated health care across borders. First, we portray an ideal scenario for this type of care with a case of patients suffering from rheumatoid arthritis and living in the Dutch-Belgian frontier area. It shows how cross border care enhances continuity of care/tailor-made care and the other way around. Secondly, based on different literature sources, we describe actual regulations on health care across borders. We show that these regulations can be a major hindrance to integrated care. This raises questions on the scope and content of policies directed at both cross border and integrated care.

  2. Introduction: Cultural Production and Negotiation of Borders

    Directory of Open Access Journals (Sweden)

    Johan Schimanski

    2009-03-01

    Full Text Available The essays in this issue of Nordlit focus on how historical and contemporary border discourses, expressive and aesthetic representations, are generated, circulated, and interpreted in both local and global contexts.

  3. Corruption, Insecurity and Border control in Niger

    DEFF Research Database (Denmark)

    Hahonou, Eric Komlavi

    In Niger, building more border offices has proven insufficient to tackle the spread of smuggling, drug trade and circulation of jihadists in the Sahel. Instead, everyday petty corruption makes border control ineffective and, while apparently benign, this has severe consequences in contexts...... of volatile security. In this policy brief, Eric Hahonou argues that without complementary activities, the multiplication of border offices could even expand opportunities for corruption. Instead, security policy should focus on creating a culture of effectiveness including systematic and regular staff...... meetings, reporting, law implementation and sanctions as well as new modalities to reward border guards and other state agents. Because corruption is, to a large extent, embedded in the social norms of the users of public service in Niger, sensitisation among transporters, passengers and traders is crucial....

  4. Of States and Borders on the Internet

    DEFF Research Database (Denmark)

    Shklovski, Irina; Struthers, David

    2010-01-01

    The space of the Internet is often described as easy to traverse with no regard for national borders. Yet few have considered what such easy border crossings on the Internet might mean to the ordinary people actually doing the traversing. Our qualitative study of regular Internet users in Kazakhs......The space of the Internet is often described as easy to traverse with no regard for national borders. Yet few have considered what such easy border crossings on the Internet might mean to the ordinary people actually doing the traversing. Our qualitative study of regular Internet users...... in Kazakhstan shows that the naming of a state-controlled space on the Internet, through the use of country code top-level domain names (ccTLDs), does in fact matter to the average user. People are aware of national boundary traversals as they navigate the Internet. Respondents in our study identified...

  5. Abuses at Europe’s borders

    Directory of Open Access Journals (Sweden)

    Duncan Breen

    2016-01-01

    Full Text Available Refugees and migrants have been regularly subjected to widespread rights violations by officials at some European borders. The EU needs to allow more legal avenues for people seeking protection to reach Europe safely.

  6. A puzzle concerning borders and identities: towards a typology of attitudes to the Irish border

    OpenAIRE

    Todd, Jennifer

    2006-01-01

    State borders are typically held to shape categories of national identification. This paper explores this interrelationship in the light of empirical evidence drawn from research in the Irish border area. It begins by outlining a schema, drawn from the literature, which posits a movement from contestation of borders, to institutionalisation, to transgression. It then proceeds to show how this is reflected in scholarly and political interpretations of attitudes towards the Irish borde...

  7. Improving Nigerian Border Security -- A Comprehensive Approach

    Science.gov (United States)

    2012-11-02

    threats, overlapping jurisdictions between different agencies, presence of private sector businesses, and partnerships with neighboring states produce a...help us increase trade amongst West African states. Increased trade means that more goods and services will be produced , increased production means...Border Security, Cooperation and Integration, 69. 22. Adeola and Fayomi, Implications of Cross Border Migration, 6-7. 23. Ibid., 7. 24. Aluko Ola

  8. Hydrology of the San Luis Valley, south-central Colorado

    Science.gov (United States)

    Emery, P.A.; Boettcher, A.J.; Snipes, R.J.; Mcintyre, H.J.

    1969-01-01

    An investigation of the water resources of the Colorado part of the San Luis Valley was begun in 1966 by the U.S. Geological Survey, in cooperation with the Colorado Water Conservation Board. (See index map, fig. 1). The purpose of the investigation is to provide information for planning and implementing improved water-development and management practices. The major water problems in the San Luis Valley include (1) waterlogging, (2) waste of water by nonbeneficial evapotranspiration, (3) deterioration of ground-water chemical quality, and (4) failure of Colorado to deliver water to New Mexico and Texas in accordance with the Rio Grande Compact. This report describes the hydrologic environment, extent of water-resource development, and some of the problems related to that development. Information presented is based on data collected from 1966 to 1968 and on previous studies. Subsequent reports are planned as the investigation progresses. The San Luis Valley extends about 100 miles from Poncha Pass near the northeast corner of Saguache County, Colo., to a point about 16 miles south of the Colorado-New Mexico State line. The total area is 3,125 square miles, of which about 3,000 are in Colorado. The valley is nearly flat except for the San Luis Hills and a few other small areas. The Colorado part of the San Luis Valley, which is described in this report, has an average altitude of about 7,700 feet. Bounding the valley on the west are the San Juan Mountains and on the east the Sangre de Cristo Mountains. Most of the valley floor is bordered by alluvial fans deposited by streams originating in the mountains, the most extensive being the Rio Grande fan (see block diagram, fig. 2 in pocket). Most of the streamflow is derived from snowmelt from 4,700 square miles of watershed in the surrounding mountains. The northern half of the San Luis Valley is internally drained and is referred to as the closed basin. The lowest part of this area is known locally as the "sump." The

  9. [AIDS along Brazil's borders, 1990-2003].

    Science.gov (United States)

    Rodrigues-Júnior, Antonio Luiz; de Castilho, Euclides Ayres

    2009-01-01

    To study the AIDS epidemic in Brazil's border areas, from the spatial and temporal perspective. This was an ecological study in which the cases of AIDS reported to the Ministry of Health of Brazil from 1990-2003 were grouped according to "hunger areas" as defined by Josué de Castro in the 1940s and according to 19 cultural subregions. Spatial assessment was based on incidence rates for border municipalities; temporal assessment considered the absolute number of cases occurring quarterly from 1990-2003 in each of the hunger areas studied (Extreme South, Midwest, and Amazon). During the study period, 7,973 cases of AIDS were reported from the Brazilian border areas: 648 in the Amazon area, 1,579 in the Midwest, and 5,746 in the Extreme South (populations of 668,098, 895,489, and 2,769,361, respectively). The subregions with the highest AIDS incidence rates in each of the three border areas were those near triple-borders, between more than two Latin American countries. Sexual transmission was predominant, with heterosexual transmission being the most frequent, followed by transmission by male homosexuality. These two categories accounted for 87.2% of the cases reported. The estimates of the trend parameter in the temporal analysis were 0.53 (P borders may be a strategy for territorial integration and for dealing with the AIDS epidemic, as long as social, economic, and cultural differences are taken into account.

  10. Spatial and seasonal variations along the U.S.-Mexico border: An analysis with Landsat Thematic Mapper imagery

    Science.gov (United States)

    de Lira Reyes, Gerardo

    1997-12-01

    Research in global ecology has been concerned with the effect of vegetation removal in semi-arid regions including aspects such as plant succession and desertification and its impact on global change, specifically global warming. In addition, conditions along international borders often are presented as discontinuities in terms of vegetation and soil status. To better document these discontinuities in a semi-arid region, a multi-temporal study along the U.S.-Mexico border was conducted with a series of six Landsat Thematic Mapper (TM) images acquired over the 1992 growing season. Spatial and temporal variations across the border were analyzed with reflectance data. Spatial data was obtained from three different sampling size areas which included: the Parker Canyon grassland; the San Rafael Valley, a grassland combined with riparian areas and croplands; and the regional area along the Arizona-Sonora border including valleys and mountains, and diverse vegetation communities and soil conditions. These areas consisted of about 106 ha, 5,800 ha, and 738,000 ha, respectively, at each side of the border. Temporal data were obtained from the six TM images which were acquired in days of the year 162, 178, 194, 274, 306, and 322. Four remote sensing applications were considered for comparison studies on both sides of the border. These techniques included: (a) band comparisons, (b) albedo, derived from the discrete sensor band information, (c) vegetation indices, and (d) application of a linear mixing model. When comparing both sides of the border, significant differences were observed in most of the remote sensing techniques applied at the Parker Canyon area. Higher differences were found during the wet season with all of the applied techniques with the exception of albedo. The red band and albedo were the most important discriminants during the dry season. At the intermediate size, San Rafael Valley area, U.S.-Mexico differences followed the same pattern as Parker Canyon

  11. The impact of embedded valleys on daytime pollution transport over a mountain range

    Science.gov (United States)

    Lang, Moritz N.; Gohm, Alexander; Wagner, Johannes S.

    2016-04-01

    Idealized large-eddy simulations were performed to investigate the impact of different mountain geometries on daytime pollution transport by thermally driven winds. The main objectives of this study were (i) to investigate the interactions between plain-to-mountain and slope wind systems and (ii) to analyze their influence on daytime pollution distribution over complex terrain. For this purpose, tracer analyses were conducted over a quasi-two-dimensional mountain range with embedded valleys bordered by ridges with different crest heights and a flat foreland in cross-mountain direction. The valley depth was varied systematically. It was found that different flow regimes develop dependent on the valley floor height. In the case of elevated valley floors, the plain-to-mountain wind descends into the potentially warmer valley and replaces the opposing upslope wind. This superimposed plain-to-mountain wind increases the pollution transport towards the main ridge by additional 20 \\unit{%} compared to the regime with a deep valley. Due to mountain and advective venting, a more than threefold increased earth-atmosphere exchange is found over the various mountain geometries when compared to the reference plain simulation. However, the calculated vertical exchange is strongly sensitive to the definition of the convective boundary layer height.

  12. Distributed Control of Networked Unmanned Aerial Vehicles for Valley Area Coverage

    Directory of Open Access Journals (Sweden)

    Mengji Shi

    2016-01-01

    Full Text Available The paper provides a novel cooperative motion scheme for networked Unmanned Aerial Vehicles (UAVs to fully sweep-cover a priori unknown elongated areas with curved borders, which are termed “valley areas.” The UAVs’ motion is confined between the borders. Different from former research on straight-corridor-sweep-coverage, in each valley area, the width of different portions varies dramatically: the UAVs need to line up across the valley area to achieve full coverage of the widest portions while they can only pass through the narrowest parts one by one in a queue. The UAVs are provided with barrier detection and inter-UAV communication. According to the scheme, a distributed control law has been offered for discrete-time multi-UAV systems, guaranteeing crash avoidance and full coverage while considering the constrained mobility of the UAVs. Regular and extreme simulations are carried out to verify the efficacy and stability of the proposed algorithm. Solutions to U-shaped valley coverage and the case of insufficient UAVs available are discussed with validation simulations. Comparison simulations are conducted with respect to a line-sweep-coverage algorithm developed by a closely related work, and differences in performance are revealed subsequently. Conclusions are drawn with possible directions of future research.

  13. The California Border Health Collaborative: A Strategy for Leading the Border to Better Health

    Directory of Open Access Journals (Sweden)

    Charles Edwards Matthews III

    2015-05-01

    Full Text Available There are hundreds of departments and organizations working on border health issues in the California/Baja California border region trying to protect and improve health without a collaborative structure that integrates jurisdictions and organizations. As a result, there is a need to effectively improve the health in the border region by coordinating these organizations to work together and benefit from each other’s best practices. The newly developed California Border Health Collaborative (CBHC can provide the leadership and collaborative culture to positively improve the health of the border region. This article aims to describe the development process of this collaborative to include key ingredients to success, the roles of mulit-level jurisdictions, and policy implications.This article describes the methods used to develop key aspects of collaborative leadership, strategic alignment and a common vision toward the building of this collective impact approach to border health. In addition, we describe the role of key local County (County of San Diego Live Well San Diego initiative, State, (California Department of Public Health- Office of Binational Border Health, Federal (US-Mexico Border Health Commission’s Leaders across Borders, Academia (e.g., University of California San Diego and San Diego State University and non-profit entities (e.g., Project Concern International, San Ysidro Health Center in forming the BHCC. Evaluating the consortium development process included a literature review of similar processes, a review of internal documents and an analysis of developmental events. To this point the CBHC has built a strong, cohesive collaborative on the U.S. side of the border. It is sharing and leveraging local expertise to address many border health issues. Even more importantly, the BHCC has reached a key stage in which it can effectively engage its Baja California, Mexico counterparts in a manner that will prove extremely powerful

  14. Remote Power Systems for Sensors on the Northern Border

    Energy Technology Data Exchange (ETDEWEB)

    Simpson, Lin J [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Kandt, Alicen J [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-06-08

    The National Renewable Energy Laboratory (NREL) is working with the Department of Homeland Security (DHS) [1] to field sensors that accurately track different types of transportation across the northern border of the U.S.. To do this, the sensors require remote power so that they can be placed in the most advantageous geographical locations, often where no grid power is available. This enables the sensors to detect and track aircraft/vehicles despite natural features (e.g., mountains, ridges, valleys, trees) that often prevent standard methods (e.g., monostatic radar or visual observers) from detecting them. Without grid power, portable power systems were used to provide between 80 and 300 W continuously, even in bitter cold and when buried under feet of snow/ice. NREL provides details about the design, installation, and lessons learned from long-term deployment of a second-generation of novel power systems that used adjustable-angle photovoltaics (PV), lithium ion batteries, and fuel cells that provide power to achieve 100% up-time.

  15. Nonstate Actors and the Open Border Policy: The Border Security Case Study of Nepal and India

    Science.gov (United States)

    2014-12-01

    49 3. Human and Drug Trafficking ...border policy, the Polish and German governments continue to address border security challenges, “including illicit trafficking of humans , arms...terrorists and organized criminals), human trafficking , technology, and corruption. As states respond to disruptive nonstate actors, which have implications

  16. Border regions as cross-border laboratories for regional and European integration

    DEFF Research Database (Denmark)

    Battrup, Gerd

    2014-01-01

    The article deals with barriers to regional cross border police cooperation. Leading police officers in the Schleswig-Holstein state police have experienced that the Danish police in recent years has become more reticent in regional cooperation across the border, especially in relation to coopera...

  17. Border regions as cross-border laboratories for regional and European integration

    DEFF Research Database (Denmark)

    Battrup, Gerd

    2014-01-01

    The article deals with barriers to regional cross border police cooperation. Leading police officers in the Schleswig-Holstein state police have experienced that the Danish police in recent years has become more reticent in regional cooperation across the border, especially in relation...

  18. Regional Joint Border Commands: A Pathway to Improving Collaboration and Effectiveness for Border Control

    Science.gov (United States)

    2009-12-01

    Police xii SBI Secure Border Initiative SES Senior Executive Service SSP Secretaria de Seguridad Publica TSA Transportation Security...also been involvement from the Mexican law enforcement agency, Secretaria de Seguridad Publica (SSP) on the southwest border (CBP, 2009; ICE, 2009, p. 5

  19. Cross-border mobility and social networks: Laotians seeking medical treatment along the Thai border.

    Science.gov (United States)

    Bochaton, Audrey

    2015-01-01

    Drawing upon research conducted on cross-border patients living in Laos and seeking care in Thailand, this paper examines the important role played by social networks in patients' decision-making and on the itineraries they choose to seek treatment on the Thai side of the border. Due to the vastly contrasting situations between the two countries in terms of healthcare supply, and considering Laotians' increasing demand for high quality healthcare, a number of them have managed to satisfy their needs by combining cross-border treatment with the use of the healthcare facilities provided by their own country. This study consisted first of household surveys conducted in five border areas (2006-2007) in Laos in order to quantify and map out cross-border healthcare-related travel patterns. Afterwards, interviews were conducted with cross-border patients (55), Laotian and Thai medical doctors (6), Thai social workers (5), and officials working in public institutions (12). While socioeconomic and spatial factors partly explain cross-border mobility, patients' social networks significantly influence treatment itineraries throughout the decision-making process, including logistical and financial considerations. The social networks existing at different geographical levels (neighbourhood, regional and global) are therefore a powerful analytical tool not only for understanding the emergence of these cross-border movements but also for justifying them in an authoritarian political environment such as Lao PDR's. Copyright © 2014 Elsevier Ltd. All rights reserved.

  20. 27 CFR 9.82 - Potter Valley.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Potter Valley. 9.82... Potter Valley. (a) Name. The name of the viticultural area described in this section is “Potter Valley.” (b) Approved map. The approved maps for the Potter Valley viticultural area are the U.S.G.S....

  1. Cost and effectiveness analysis on unmanned aerial vehicle (UAV) use at border security

    Science.gov (United States)

    Yilmaz, Bahadır.

    2013-06-01

    Drones and Remotely Piloted Vehicles are types of Unmanned Aerial Vehicles. UAVs began to be used with the war of Vietnam, they had a great interest when Israel used them in Bekaa Valley Operations of 1982. UAVs have been used by different countries with different aims with the help of emerging technology and investments. In this article, in the context of areas of UAV usage in national security, benefits and disadvantages of UAVs are put forward. Particularly, it has been evaluated on the basis of cost-effectiveness by focusing the use of UAV in the border security. UAVs have been studied by taking cost analysis, procurement and operational costs into consideration. Analysis of effectiveness has been done with illegal passages of people and drugs from flight times of UAVs. Although the procurement cost of the medium-level UAVs is low, its operational costs are high. For this reason, the idea of less costly alternative systems have been revealed for the border security. As the costs are reduced to acceptable level involving national security and border security in future with high-technology products in their structure, it will continue to be used in an increasing proportion.

  2. Cross-border regional innovation systems

    DEFF Research Database (Denmark)

    Makkonen, Teemu; Rohde, Stephan

    2016-01-01

    elaborated through notions of geographical scale, proximity and related variety in a range of conceptual papers proposing CBRIS as a comprehensive framework for analysing regional cross-border integration. However, the empirical literature on CBRIS has failed to keep up with the advances in conceptualisation...... of understanding how suggested policy measures based on CBRIS reasoning have been implemented in border regions, and their effectiveness in promoting cross-border integration........ This paper discusses the reasons behind this mismatch which means that the concept still rests upon and draws policy suggestions based on a thin evidence base. Directions for further research are pointed out by underlining the need for holistic empirical validations of the concept together with the need...

  3. Lesion Border Detection in Dermoscopy Images

    CERN Document Server

    Celebi, M Emre; Schaefer, Gerald; Stoecker, William V; 10.1016/j.compmedimag.2008.11.002

    2010-01-01

    Background: Dermoscopy is one of the major imaging modalities used in the diagnosis of melanoma and other pigmented skin lesions. Due to the difficulty and subjectivity of human interpretation, computerized analysis of dermoscopy images has become an important research area. One of the most important steps in dermoscopy image analysis is the automated detection of lesion borders. Methods: In this article, we present a systematic overview of the recent border detection methods in the literature paying particular attention to computational issues and evaluation aspects. Conclusion: Common problems with the existing approaches include the acquisition, size, and diagnostic distribution of the test image set, the evaluation of the results, and the inadequate description of the employed methods. Border determination by dermatologists appears to depend upon higher-level knowledge, therefore it is likely that the incorporation of domain knowledge in automated methods will enable them to perform better, especially in ...

  4. BTFS: The Border Trade Facilitation System

    Energy Technology Data Exchange (ETDEWEB)

    Phillips, L.R.

    1999-03-18

    The author demonstrates the Border Trade Facilitation System (BTFS), an agent-based bilingual e-commerce system built to expedite the regulation, control, and execution of commercial trans-border shipments during the delivery phase. The system was built to serve maquila industries at the US/Mexican border. The BTFS uses foundation technology developed here at Sandia Laboratories' Advanced Information Systems Lab (AISL), including a distributed object substrate, a general-purpose agent development framework, dynamically generated agent-human interaction via the World-Wide Web, and a collaborative agent architecture. This technology is also the substrate for the Multi-Agent Simulation Management System (MASMAS) proposed for demonstration at this conference. The BTFS executes authenticated transactions among agents performing open trading over the Internet. With the BTFS in place, one could conduct secure international transactions from any site with an Internet connection and a web browser. The BTFS is currently being evaluated for commercialization.

  5. Formation and separation of root border cells.

    Science.gov (United States)

    Driouich, Azeddine; Durand, Caroline; Vicré-Gibouin, Maïté

    2007-01-01

    Plant roots release a large number of border cells into the rhizosphere, which are believed to play a key role in root development and health. The formation and loss of these cells from the root cap region is a developmentally regulated process that is also controlled by phytohormones and environmental factors. The separation of border cells involves the complete dissociation of individual cells from each other and from root tissue. This process requires the activity of cell wall-degrading enzymes that solubilize the cell wall connections between cells. We present and discuss the solubilization process with an emphasis on pectin-degrading enzymes as well as the recently discovered root border-like cells of Arabidopsis thaliana.

  6. CRIA Sians A areement with Rubber Valley

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The signing ceremony of establishing strategic partnership between China Rubber Industry Association and Rubber Valley Co., Ltd. was held in Rubber Valley on September 13. Leaders such as Xu Wenying, Deputy Secretary-General of CRIA, repre-senting CRIA, and Zhang Yan, Deputy Director of Rubber Valley Management Committee and General Manager of Rubber Valley Co., Ltd., representing Rubber Valley, signed on the cooperation agreement. Fan Rende, President of CRIA, Cai Quanji,

  7. Accelerating optimization by tracing valley

    Science.gov (United States)

    Li, Qing-Xiao; He, Rong-Qiang; Lu, Zhong-Yi

    2016-06-01

    We propose an algorithm to accelerate optimization when an objective function locally resembles a long narrow valley. In such a case, a conventional optimization algorithm usually wanders with too many tiny steps in the valley. The new algorithm approximates the valley bottom locally by a parabola that is obtained by fitting a set of successive points generated recently by a conventional optimization method. Then large steps are taken along the parabola, accompanied by fine adjustment to trace the valley bottom. The effectiveness of the new algorithm has been demonstrated by accelerating the Newton trust-region minimization method and the Levenberg-Marquardt method on the nonlinear fitting problem in exact diagonalization dynamical mean-field theory and on the classic minimization problem of the Rosenbrock's function. Many times speedup has been achieved for both problems, showing the high efficiency of the new algorithm.

  8. Mississippi River Valley alluvial aquifer

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set represents the extent of the Mississippi River Valley alluvial aquifer in the states of Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and...

  9. The History of Silicon Valley

    Institute of Scientific and Technical Information of China (English)

    Joseph Leu

    2005-01-01

    @@ Just as Manchester was once the center for indus trial progress, the microelectronics industry also has a heartland. Silicon Valley is located in a thirty by ten miles strip between San Francisco and San Jose,California.

  10. RailroadValleySpringfish_CH

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — These data identify the areas where final critical habitat for the Railroad Valley springfish (Crenichthys nevadae) occur. The irrigation ditch that is on the north...

  11. Social Networks in Silicon Valley

    Institute of Scientific and Technical Information of China (English)

    Joseph; Leu

    2006-01-01

      Social network is a dominant, distinguishing characteristic of Silicon Valley. Because innovation entails coping with a high degree of uncertainty,such innovation is particularly dependent on networks.……

  12. Meteors Without Borders: a global campaign

    Science.gov (United States)

    Heenatigala, T.

    2012-01-01

    "Meteors Without Borders" is a global project, organized by Astronomers Without Borders and launched during the Global Astronomy Month in 2010 for the Lyrid meteor shower. The project focused on encouraging amateur astronomy groups to hold public outreach events for major meteor showers, conduct meteor-related classroom activities, photography, poetry and art work. It also uses social-media platforms to connect groups around the world to share their observations and photography, live during the events. At the International Meteor Conference 2011, the progress of the project was presented along with an extended invitation for collaborations for further improvements of the project.

  13. A CART extention using Quadratic Decision Borders

    DEFF Research Database (Denmark)

    Hartelius, Karsten

    1999-01-01

    In this article we put forward an extention to the hierarchical CART classification method which uses quadratic decision borders. The original CART applies univariate splits on individual variables as well as splits on combinations of variables to recursively partition the feature......-space into subsets which are successively more class-homogeneous. Guided by the fact that class-distributions in feature-space are very often hyper-elliptical shaped, we give an extension to the original CART which also uses quadratic shaped decision borders which can be modelled by a mean-vector and a dispersion...

  14. A CART extension using Quadratic Decision Borders

    DEFF Research Database (Denmark)

    Hartelius, Karsten

    1999-01-01

    In this article we put forward an extention to the hierarchical CART classification method which uses quadratic decision borders. The original CART applies univariate splits on individual variables as well as splits on combinations of variables to recursively partition the feature......-space into subsets which are successively more class-homogeneous. Guided by the fact that class-distributions in feature-space are very often hyper-elliptical shaped, we give an extension to the original CART which also uses quadratic shaped decision borders which can be modelled by a mean-vector and a dispersion...

  15. of the U. S.-Mexico Border

    Directory of Open Access Journals (Sweden)

    Sophie Meritet

    2006-01-01

    Full Text Available This paper studies the possible impacts of liquefied natural gas (LNG projects on natural gas prices on both sides of the U. S.-Mexico border in California. In that state gas prices are high and demand is expected to grow. Several projects for LNG facilities have been proposed and have to cope with public opinions against them. In Baja California, four LNG projects are under development given the rising demand forecasted for the next years. After a detailed study of the opportunity for LNG projects, we conclude with an analysis of the fundamentals of the current and future price formation in both sides of the U. S.- Mexico border.

  16. Crossing the Borders: An Eco-cinecritical Analysis of Plant Wars and Bird Without Borders

    Directory of Open Access Journals (Sweden)

    Hsiao-Ching Li

    2011-01-01

    Full Text Available This essay reads two Asian nature-oriented films from the perspective of ecocinecriticism,an ecologically minded film criticism. Plant Wars, produced by PTSTaiwan, questions the demarcation between native plants and exotic plants as well asbetween plants and human beings so as to remap the in-between border area. Thestorytelling method it applies is to feature 14 currently native plants as the maincharacters, and illustrates their relationship to aboriginal people, farmers, beekeepersand to other insect species. Bird Without Borders, also produced by PTS, tells the storyof the migration journey of a group of black-faced spoonbills flying 16,000 kilometersall the way from Tainan, Taiwan, to Japan, along the border of South and North Korea,to a remote island of China to look for feeding places and then back to Taiwan to spendthe winter. Different layers of border-crossing are shown in Bird. One similarity ofthese two PTS productions is the search for border-crossing so as to redefine or revisewhat the border means. Plant questions the biological categorization of the native plantsand the exotic plants; Bird illustrates how the crew physically follows the route of thebirds’ flight which crosses the national borders to provide a vision of remapping thenatural territory through challenging the idea of a fixed “place.” Both are seeking forways to trespass the man-made borders: Plant via environmental imagination; Bird viasome physical movement. While the title of Plant Wars seemingly expresses its positionmore strongly through “wars,” Bird Without Borders explicitly asserts a dream of noborders.

  17. Alcohol-related social problems among Mexican Americans living in U.S.-Mexico border and non-border areas.

    Science.gov (United States)

    Vaeth, Patrice A C; Caetano, Raul; Mills, Britain A; Rodriguez, Lori A

    2012-08-01

    This paper examines alcohol-related social problems among Mexican Americans living along the U.S.-Mexico border and in non-border areas. Interviews were conducted among Mexican Americans in the border regions of California, Arizona, New Mexico, and Texas (N=1307). Non-border respondents were interviewed primarily in Houston and Los Angeles (N=1288) as part of the Hispanic Americans Baseline Alcohol Survey (HABLAS). Both the border and HABLAS surveys employed multistage cluster sample designs (response rates were 67% and 76%, respectively). In the bivariate analysis, there were no significant differences between border and non-border areas in the proportion of those with one or more social problem. In non-border areas, the prevalence of alcohol problems did not differ significantly by age. However, along the border the prevalence of alcohol problems was significantly different across age groups, with 18 to 29year old men and women having the highest prevalence. The final models showed no residence effect on problem likelihood. Drinking was strongly associated with problems. Although young border residents had higher problem prevalence rates than older residents, the logistic regression models showed no effect of border residence on the likelihood of problems, indicating that problems are due to alcohol consumption, not the border environment. The border, however, did appear to influence more drinking among young people. Regardless of residence, alcohol treatment and preventive interventions tailored to Mexican Americans are essential and special attention should be focused on younger individuals near the border.

  18. Stress Resilience among Border Mexican American Women

    Science.gov (United States)

    Guinn, Bobby; Vincent, Vern; Dugas, Donna

    2009-01-01

    The purpose of this study was to identify factors distinguishing Mexican American women living near the U.S.-Mexican border who are resilient to the experience of stress from those who are not. The study sample consisted of 418 participants ranging in age from 20 to 61 years. Data were gathered through a self-report survey instrument composed of…

  19. Stress Resilience among Border Mexican American Women

    Science.gov (United States)

    Guinn, Bobby; Vincent, Vern; Dugas, Donna

    2009-01-01

    The purpose of this study was to identify factors distinguishing Mexican American women living near the U.S.-Mexican border who are resilient to the experience of stress from those who are not. The study sample consisted of 418 participants ranging in age from 20 to 61 years. Data were gathered through a self-report survey instrument composed of…

  20. Implementation Issues of Cross-border Acquisitions

    DEFF Research Database (Denmark)

    Wang, Daojuan; Moini, Hamid; Kuada, John

    This study investigates the impacts of main implementation activities on the success of cross-border acquisitions (CBAs) using the survey data from a sample of 103 CBAs conducted by the companies in Scandinavia. The results of regression analysis indicate that due diligence, integration extent, a...

  1. Cross-border Mergers and Acquisitions

    DEFF Research Database (Denmark)

    Wang, Daojuan

    This paper focuses on three topics in cross-border mergers and acquisitions (CBM&As) field: motivations for CBM&As, valuation techniques and CBM&A performance (assessment and the determinants). By taking an overview of what have been found so far in academic field and investigating...

  2. Estimating Border Tax Evasion in Mozambique

    DEFF Research Database (Denmark)

    Arndt, Channing; Van Dunem, Joao Ernesto

    2009-01-01

    The relationship between border tax rates and evasion is examined for Mozambique using the methodology developed by Fisman and Wei (2004). We find that high tax rates are associated with high levels of under-reporting of import values and that tax rates have a strong and positive effect on tax ev...

  3. Lesson plan. Crossing borders: the globalization debate

    OpenAIRE

    anonymous

    2008-01-01

    Students will consider both sides of the globalization debate—the benefits and the costs—by reading and discussing the article "Crossing Borders: The Globalization Debate" from the Spring 2008 issue of Inside the Vault. Working in groups, students will analyze statements regarding the benefits and costs of globalization, categorize the statements and discuss them.

  4. Cross-border Mergers and Acquisitions

    DEFF Research Database (Denmark)

    Wang, Daojuan

    This paper focuses on three topics in cross-border mergers and acquisitions (CBM&As) field: motivations for CBM&As, valuation techniques and CBM&A performance (assessment and the determinants). By taking an overview of what have been found so far in academic field and investigating...

  5. The border population effects of EU integration

    NARCIS (Netherlands)

    Brakman, Steven; Garretsen, Harry; van Marrewijk, Charles; Oumer, Abdella

    2012-01-01

    Border cities or regions are in theory more affected by the EU integration process than more central locations as it more drastically influences their transaction costs and market potential. We find a positive empirical effect of EU enlargement as measured by the growth in population share along the

  6. Crossing Pedagogical Borders in the Yucatan Peninsula

    Science.gov (United States)

    Willhauck, Susan

    2009-01-01

    A challenging intercultural teaching experience provided an opportunity for engaging embodied pedagogies that facilitated border crossings of language, age, gender, and experience. Influenced by the work of Augusto Boal, the author describes how improvisation, role-play, music, and drawing led seminary students in Mexico into sacred time and space…

  7. International taxation and cross-border banking

    NARCIS (Netherlands)

    Huizinga, H.P.; Voget, J.; Wagner, W.B.

    2014-01-01

    This paper examines empirically how international taxation affects the volume and pricing of cross-border banking activities for a sample of banks in 38 countries over the 1998�2008 period. International double taxation of foreign-source bank income is found to reduce banking-sector FDI. Furthermo

  8. International Taxation and Cross-Border Banking

    NARCIS (Netherlands)

    Huizinga, H.P.; Voget, J.; Wagner, W.B.

    2011-01-01

    This paper examines empirically how international taxation affects the volume and pricing of cross-border banking activities for a sample of banks in 38 countries over the 1998-2008 - period. Home country corporate income taxation of foreign-source bank income is found to reduce banking-sector FDI.

  9. Cross-border flow of health information

    DEFF Research Database (Denmark)

    Di Iorio, Concetta Tania; Carinci, Fabrizio; Brillante, Massimo;

    2013-01-01

    The EUBIROD project aims to perform a cross-border flow of diabetes information across 19 European countries using the BIRO information system, which embeds privacy principles and data protection mechanisms in its architecture (privacy by design). A specific task of EUBIROD was to investigate the...

  10. Borders and Borderlands in the Americas

    Science.gov (United States)

    2012-08-01

    arbitration . This means that states do not necessarily view their borders as matters of existential import, but at most as subjects that may be... ethical , political, civil rights, privacy, and legal implications, the technology is rapidly becoming available to digitally tag, biometrically identify

  11. Water Bodies and Vegetation in the California-Baja California Border Region a Remote Sensors Perspective.

    Science.gov (United States)

    Hinojosa, A.; Mexicano-Vargas, M. L.; Serrato, B. A.

    2007-05-01

    The California-Baja California border region although they share watersheds, similar climate and landscape, there is a big contrast in the vegetation cover and water bodies between the two countries as seen from remote sensors. There is a stronger signature of vegetation and larger number of water bodies in the California side. To do a quantitative estimate of these differences, a comparative analysis of vegetation and water bodies was perfomerd along a strip of 100 km from both sides of the border with remote sensing techniques using Landsat TM images from 1984 to 2006. The strong absorption of water to short wave infrared radiation captured by band 5 of TM Landsat sensor (1.55- 1.75 micrometers) is use to detect water bodies. The histogram segmentation technique was used with TM 5/1 band ratios reinforced with a shades prediction technique using the sun position and a digital elevation model. The aerial extent of detected water bodies is estimated. Also an analysis from 1972 trough 2002 of the Mexican portion of Colorado river delta will be presented, with emphasis on flood events induced by abnormal snowmelts and higher precipitations in the high basin; 250 Landsat image previews were collected , from which 157 were selected to integrate 63 scenes that provide a dynamic picture of the Colorado delta river over 30 years. A regression with the annual averages of inundated areas and annual water flow data from E.U. to Mexico was made with a correlation coefficient of 0.912. The normalized difference vegetation index (NDVI) was used to estimate the vegetation greenness in the agricultural valleys and in natural vegetated areas along the mountains on both sides of the border. The spatial distribution of the NDVI and the differences between zones with the same land use regime on both sides of the border is presented.

  12. Partnership and Cooperation Models in Cross-Border Areas

    Directory of Open Access Journals (Sweden)

    Marcela Slusarciuc

    2013-08-01

    Full Text Available The paper aims at exploring the partnership and cooperation issues in cross-border areas in European Union. The theoretical part of the papers is defining the role of the borders in the framework of the European Union enlarged and it includes a review of forms of cooperation and principles applicable in cross-border cooperation considered by the Council of Europe and the European Union or the Association of European Border Regions. Further there are identified in the specific literature important challenges and key points that are marking the cross-border partnerships. The last part of the paper is focusing on some examples of cross-border cooperation, making distinction between two main situations: the border between Member States and the borders between EU and neighbouring countries.

  13. Valley blockade quantum switching in Silicon nanostructures.

    Science.gov (United States)

    Prati, Enrico

    2011-10-01

    In analogy to the Coulomb and the Pauli spin blockade, based on the electrostatic repulsion and the Pauli exclusion principle respectively, the concept of valley blockade in Silicon nanostructures is explored. The valley parity operator is defined. Valley blockade is determined by the parity conservation of valley composition eigenvectors in quantum transport. A Silicon quantum changeover switch based on a triple of donor quantum dots capable to separate electrons having opposite valley parity by virtue of the valley parity conservation is proposed. The quantum changeover switch represents a novel kind of hybrid quantum based classical logic device.

  14. BorderTourism--- IntheCaseofShaTauKokTourismexploitation

    Institute of Scientific and Technical Information of China (English)

    Li Fangzhou

    2014-01-01

    The diversity is the foundation of tourism.Border regions witness the change of the history, and retain valuable heritages and unique vil ages. Because of the common border protection regulations, natural beauties and cultural landscapes can be also wel preserved, leaving abundant and precious tourism resources for younger generations.Combining with the sha tau kok border region and the surrounding site,analysis of the feasibility of border tourism and chal enges.

  15. International Border Management Systems (IBMS) Program : visions and strategies.

    Energy Technology Data Exchange (ETDEWEB)

    McDaniel, Michael; Mohagheghi, Amir Hossein

    2011-02-01

    Sandia National Laboratories (SNL), International Border Management Systems (IBMS) Program is working to establish a long-term border security strategy with United States Central Command (CENTCOM). Efforts are being made to synthesize border security capabilities and technologies maintained at the Laboratories, and coordinate with subject matter expertise from both the New Mexico and California offices. The vision for SNL is to provide science and technology support for international projects and engagements on border security.

  16. Geoenvironmental problems and cross-border cooperation in Central America

    Institute of Scientific and Technical Information of China (English)

    Marek Graniczny; Jonas Satkunas; Jurga Lazauskiene; Jiri Sebesta

    2006-01-01

    @@ The International Workshop on "Geoenvironmental problems and cross-border cooperation in Central America" was organized in Managua, Nicaragua, 5-8 December, 2005 by the Working Group International Borders-Geoenvironmental Concerns (IBC), under the IUGS Commission on Geosciences for Environmental Management (GEM) and in the framework of the IUGS funded project "Application of geosciences for sustainable development of cross-border areas(GEOCrossBorder)".

  17. Hmong Across Borders or Borders Across Hmong? Social and Political Influences Upon Hmong People

    Directory of Open Access Journals (Sweden)

    Prasit Leepreecha

    2014-12-01

    Full Text Available The Hmong are a transnational ethnic people, because of their dispersal from China into Southeast Asia in the early 19th century and from Southeast Asia to Western countries from 1975 onward. However, even within the context of Southeast Asia and southern China, the Hmong are a transnational ethnic group, due to state boundaries and the enforcement of international laws.Scholars speak as though the Hmong population has crossed political and legal borders by their movement across state boundaries and international borders. However, I argue that it is the political, social, and legal borders that have cut across the Hmong people and subjected them to be citizens of different modern nation-states. Even in the present time, these borders still, and continuously, play important roles that cross and divide the Hmong people into distinctive subgroups and fragments. In this article, I will start by describing the generally understood situation of Hmong being across national borders, and then will explain my argument that borders are across the Hmong.

  18. Imagining and Imaging Borders: Understanding Borderlands for Global Sustainability

    Science.gov (United States)

    Konrad, V.

    2013-11-01

    Borders are increasingly complex human responses and social constructions in a world where globalizing forces confront basic human concerns for security and certainty. In an effort to provide a background to assess research directions for imaging borders, this paper explores what we know about borders, and what we do not know well about borders. Borders in globalization are the meeting points of globalizing forces of security, trade and migration flows with emerging technologies, self determination and regionalization around the world. We need to know more about how: self determination fuels secessions and new borders; borders result from complex rather than simple policy and governance issues; borders depend on the political clout of borderland communities; market and migration flows impact borders; and borders are always in motion. The paper shows how these organizing principles underlie the basic themes of border governance, flows, culture, history, security and sustainability. Finally, the paper offers two brief illustrations of border imaging to link this presentation to the following discussion of the workshop.

  19. 78 FR 35044 - U.S. Customs and Border Protection

    Science.gov (United States)

    2013-06-11

    ... SECURITY U.S. Customs and Border Protection Agency Information Collection Activities: Visa Waiver Program Carrier Agreement (CBP Form I-775) AGENCY: U.S. Customs and Border Protection, Department of Homeland...: 1651-0110. SUMMARY: U.S. Customs and Border Protection (CBP) of the Department of Homeland...

  20. 75 FR 266 - Customs and Border Protection's Bond Program

    Science.gov (United States)

    2010-01-05

    ...] [FR Doc No: E9-30920] DEPARTMENT OF HOMELAND SECURITY Bureau of Customs and Border Protection DEPARTMENT OF THE TREASURY 19 CFR Parts 101, 113, and 133 [Docket No. USCBP-2006-0013] RIN 1505-AB54 Customs and Border Protection's Bond Program AGENCIES: Customs and Border Protection, Department of...

  1. 77 FR 1497 - U.S. Customs and Border Protection

    Science.gov (United States)

    2012-01-10

    ... SECURITY U.S. Customs and Border Protection Agency Information Collection Activities: Application for Withdrawal of Bonded Stores for Fishing Vessels and Certificate of Use AGENCY: U.S. Customs and Border... comments to U.S. Customs and Border Protection, Attn: Tracey Denning, Regulations and Rulings, Office...

  2. The Dutch-French Language Border in Belgium.

    Science.gov (United States)

    Willemyns, Roland

    2002-01-01

    Describes language border fluctuations in Belgium as far as its Dutch-French portion is concerned. Examines the status and function of the language border in Belgium and of actual border fluctuations. Discusses two problem areas in detail: the "Voerstreek, and the Brussels suburban region. Language shift and language change through erosion in…

  3. Opportunities for Cross-Border Entrepreneurship Development in a Cluster Model Exemplified by the Polish–Czech Border Region

    OpenAIRE

    Joanna Kurowska-Pysz

    2016-01-01

    The subject of the paper is the analysis and evaluation of cross-border entrepreneurship development opportunities on the basis of cross-border cooperation, which has gradually evolved from consisting of bilateral partnerships to a networking model or even a cluster. The study conducted at the Polish–Czech border area indicates that, in terms of the development of cross-border cooperation, the economic sphere is lagging far behind social activities such as culture, education and tourism. At t...

  4. Modelling photochemistry in alpine valleys

    Directory of Open Access Journals (Sweden)

    G. Brulfert

    2005-01-01

    Full Text Available Road traffic is a serious problem in the Chamonix Valley, France: traffic, noise and above all air pollution worry the inhabitants. The big fire in the Mont-Blanc tunnel made it possible, in the framework of the POVA project (POllution in Alpine Valleys, to undertake measurement campaigns with and without heavy-vehicle traffic through the Chamonix and Maurienne valleys, towards Italy (before and after the tunnel re-opening. Modelling is one of the aspects of POVA and should make it possible to explain the processes leading to episodes of atmospheric pollution, both in summer and in winter. Atmospheric prediction model ARPS 4.5.2 (Advanced Regional Prediction System, developed at the CAPS (Center for Analysis and Prediction of Storms of the University of Oklahoma, enables to resolve the dynamics above a complex terrain. This model is coupled to the TAPOM 1.5.2 atmospheric chemistry (Transport and Air POllution Model code developed at the Air and Soil Pollution Laboratory of the Ecole Polytechnique Fédérale de Lausanne. The numerical codes MM5 and CHIMERE are used to compute large scale boundary forcing. This paper focuses on modelling Chamonix valley using 300-m grid cells to calculate the dynamics and the reactive chemistry which makes possible to accurately represent the dynamics in the Chamonix valley (slope and valley winds and to process chemistry at fine scale. The summer 2003 intensive campaign was used to validate the model and to study chemistry. NOy according to O3 reduction demonstrates a VOC controlled regime, different from the NOx controlled regime expected and observed in the nearby city of Grenoble.

  5. Modelling photochemistry in alpine valleys

    Directory of Open Access Journals (Sweden)

    G. Brulfert

    2005-03-01

    Full Text Available Road traffic is a serious problem in the Chamonix Valley, France: traffic, noise and above all air pollution worry the inhabitants. The big fire in the Mont-Blanc tunnel made it possible, in the framework of the POVA project (POllution in Alpine Valleys, to undertake measurement campaigns with and without heavy-vehicle traffic through the valley, towards Italy (before and after the tunnel re-opening. Modelling in POVA should make it possible to explain the processes leading to episodes of atmospheric pollution, both in summer and in winter.

    Atmospheric prediction model ARPS 4.5.2 (Advanced Regional Prediction System, developed at the CAPS (Center for Analysis and Prediction of Storms of the University of Oklahoma, enables to resolve the dynamics above a complex terrain.

    This model is coupled to the TAPOM 1.5.2 atmospheric chemistry (Transport and Air POllution Model code developed at the Air and Soil Pollution Laboratory of the Ecole Polytechnique Fédérale de Lausanne.

    The numerical codes MM5 and CHIMERE are used to compute large scale boundary forcing.

    Using 300-m grid cells to calculate the dynamics and the reactive chemistry makes possible to accurately represent the dynamics in the valley (slope and valley winds and to process chemistry at fine scale.

    Validation of campaign days allows to study chemistry indicators in the valley. NOy according to O3 reduction demonstrates a VOC controlled regime, different from the NOx controlled regime expected and observed in the nearby city of Grenoble.

  6. Small Glaciofluvial Valleys on Amazonian Mars

    Science.gov (United States)

    Fassett, C.; Dickson, J.; Head, J. W.; Levy, J. S.; Marchant, D. R.

    2009-12-01

    We present new observations of small valleys associated with glacial features in the Martian mid-latitudes, based on a survey of images from the Context Camera (CTX) on the Mars Reconnaissance Orbiter. These valleys are small (~50-400 m wide) and short (mechanism most likely to explain their origin is top-down melting of these cold-based glaciers. Some valleys have associated sedimentary deposits (small fans) (e.g., Fig. 1). Both stratigraphic relations and crater counting constrain most such valleys to the Amazonian period. The observed glaciofluvial valleys are typically on slopes of P16_007256_1383). The valley begins in a small alcove, where remnant glacial materials are now ~1 km from the valley head. The valley is ~5.5 km long, has an average slope of 5°, and terminates in an elongate fan.

  7. EPA Region 1 - Valley Depth in Meters

    Data.gov (United States)

    U.S. Environmental Protection Agency — Raster of the Depth in meters of EPA-delimited Valleys in Region 1. Valleys (areas that are lower than their neighbors) were extracted from a Digital Elevation Model...

  8. Valley evolution by meandering rivers

    Science.gov (United States)

    Limaye, Ajay Brian Sanjay

    Fluvial systems form landscapes and sedimentary deposits with a rich hierarchy of structures that extend from grain- to valley scale. Large-scale pattern formation in fluvial systems is commonly attributed to forcing by external factors, including climate change, tectonic uplift, and sea-level change. Yet over geologic timescales, rivers may also develop large-scale erosional and depositional patterns that do not bear on environmental history. This dissertation uses a combination of numerical modeling and topographic analysis to identify and quantify patterns in river valleys that form as a consequence of river meandering alone, under constant external forcing. Chapter 2 identifies a numerical artifact in existing, grid-based models that represent the co-evolution of river channel migration and bank strength over geologic timescales. A new, vector-based technique for bank-material tracking is shown to improve predictions for the evolution of meander belts, floodplains, sedimentary deposits formed by aggrading channels, and bedrock river valleys, particularly when spatial contrasts in bank strength are strong. Chapters 3 and 4 apply this numerical technique to establishing valley topography formed by a vertically incising, meandering river subject to constant external forcing---which should serve as the null hypothesis for valley evolution. In Chapter 3, this scenario is shown to explain a variety of common bedrock river valley types and smaller-scale features within them---including entrenched channels, long-wavelength, arcuate scars in valley walls, and bedrock-cored river terraces. Chapter 4 describes the age and geometric statistics of river terraces formed by meandering with constant external forcing, and compares them to terraces in natural river valleys. The frequency of intrinsic terrace formation by meandering is shown to reflect a characteristic relief-generation timescale, and terrace length is identified as a key criterion for distinguishing these

  9. Modeling Events in the Lower Imperial Valley Basin

    Science.gov (United States)

    Tian, X.; Wei, S.; Zhan, Z.; Fielding, E. J.; Helmberger, D. V.

    2010-12-01

    The Imperial Valley below the US-Mexican border has few seismic stations but many significant earthquakes. Many of these events, such as the recent El Mayor-Cucapah event, have complex mechanisms involving a mixture of strike-slip and normal slip patterns with now over 30 aftershocks with magnitude over 4.5. Unfortunately, many earthquake records from the Southern Imperial Valley display a great deal of complexity, ie., strong Rayleigh wave multipathing and extended codas. In short, regional recordings in the US are too complex to easily separate source properties from complex propagation. Fortunately, the Dec 30 foreshock (Mw=5.9) has excellent recordings teleseismically and regionally, and moreover is observed with InSAR. We use this simple strike-slip event to calibrate paths. In particular, we are finding record segments involving Pnl (including depth phases) and some surface waves (mostly Love waves) that appear well behaved, ie., can be approximated by synthetics from 1D local models and events modeled with the Cut-and-Paste (CAP) routine. Simple events can then be identified along with path calibration. Modeling the more complicated paths can be started with known mechanisms. We will report on both the aftershocks and historic events.

  10. The Nature and Functions of European Political Borders

    Directory of Open Access Journals (Sweden)

    Jernej Zupančič

    2008-07-01

    Full Text Available The political border limits a state’s territory and symbolizes the extent of a state’s power and ownership. Borders give integrity to the inner state territory which they enclose (the role of establishing national integrity and at the same time form an outer boundary segregating the state territory from the surrounding politicial entities (the segregation role. European borders are old and reflect the political history of an old continent. The last major border changes happened after World War II. Over the centuries borders were merely lines separating one territory from another. Such borders were understood as »frontiers«. Forming an effective barrier against enemies was the overriding function of borders. Many borders were fortified and further enhanced by means of various defensive systems. In the second half of the 20th century the character of political borders changed. They became a contact area between countries, nations and cultures. Contemporary European borders reflect the colourful history of an old continent. They are predominantely functional markers: they represent the political and juridical delimitation of territories, they mark economic barriers and show their defensive nature and reveal the extent of cultural contact. As a result of European integration processes, the nature of political borders has changed: instead of division, their integration role is brought to the fore. A united Europe is nevertheless still not a borderless Europe! The borders within the »Schengen-area« have retained their political and administrative functions, it is just that the customs and security checks at the borders have been removed. During the period of European integration, borderlines were stabilized in accordance with the 1974 Helsinki Agreement. But despite this we can still observe ongoing changes to state borders, particularly in areas of conflict such as the Balkan peninsula. It seems after all that the process of demarcation

  11. Opportunities for Cross-Border Entrepreneurship Development in a Cluster Model Exemplified by the Polish–Czech Border Region

    Directory of Open Access Journals (Sweden)

    Joanna Kurowska-Pysz

    2016-03-01

    Full Text Available The subject of the paper is the analysis and evaluation of cross-border entrepreneurship development opportunities on the basis of cross-border cooperation, which has gradually evolved from consisting of bilateral partnerships to a networking model or even a cluster. The study conducted at the Polish–Czech border area indicates that, in terms of the development of cross-border cooperation, the economic sphere is lagging far behind social activities such as culture, education and tourism. At the same time, Polish and Czech enterprises are not sufficiently mobilized to develop cross-border entrepreneurship, although a number of support instruments in this regard have been proposed. Sustainable development of the border should take into account both social and economic aspects. An important research problem therefore becomes determining the possibility of boosting the development of cross-border entrepreneurship on the basis of the existing forms of cross-border cooperation, including cooperation in the social sphere. The aim of this paper is to define the conditions and opportunities for the development of cluster cooperation in the area of cross-border entrepreneurship. The author has attempted to resolve whether the intensity of cross-border cooperation can be a factor which mobilizes companies to develop their cross-border entrepreneurship and whether cross-border entrepreneurship can be further developed within the cluster model.

  12. Off-shoring and out-sourcing the borders of EUrope: Libya and EU border work in the Mediterranean

    NARCIS (Netherlands)

    Bialasiewicz, L.

    2012-01-01

    The article examines some of the novel ways in which the European Union carries out its ‘border-work’- border-work that stretches far beyond the external borders of the current Union. It highlights, in particular, the role of EUrope's neighbours in new strategies of securitisation, drawing attention

  13. 27 CFR 9.57 - Green Valley of Russian River Valley.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Green Valley of Russian River Valley. 9.57 Section 9.57 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE... Areas § 9.57 Green Valley of Russian River Valley. (a) Name. The name of the viticultural area...

  14. Centronuclear myopathy in a Border collie dog.

    Science.gov (United States)

    Eminaga, S; Cherubini, G B; Shelton, G D

    2012-10-01

    A two-year old, male entire Border collie was presented with a one-year history of exercise-induced collapsing on the pelvic limbs. Physical examination revealed generalised muscle atrophy. Neurological examination supported a generalised neuromuscular disorder. Electromyography revealed spontaneous electrical activity in almost all muscles. Unfixed and formaldehyde-fixed biopsy samples were collected from the triceps brachii, longissimus and vastus lateralis muscles. Histopathological, histochemical and ultrastructural examinations of biopsy specimens were consistent with either centronuclear or myotubular myopathy. The dog clinically improved with supportive treatment with L-carnitine, co-enzyme Q10 and vitamin B compound. To the authors' knowledge, this is the first report of centronuclear/myotubular myopathy in a Border collie.

  15. Antecedents of Cross-Border Acquisition Performance

    DEFF Research Database (Denmark)

    Wang, Daojuan; Moini, Hamid; Kuada, John Ernest

    2017-01-01

    This study investigates the impacts of main implementation activities on the success of cross-border acquisitions (CBAs), using survey data from a sample of 103 CBAs conducted by the companies in Nordic countries. The results of OLS regression analysis indicate that due diligence, integration...... impact on the success, while acquisition experience exerts negative effect. However, the evidence does not support that planning and coordination will contribute to CBA performance. Taking a process perspective, this study specially focuses on the main implementation activities during acquisition process......, with the aim to empirically investigate their relative importance and joint effect on the performance of cross-border acquisitions. Such integrative understanding of how and why these actions explain acquisition success also yields important implications for managers....

  16. Cross-border cooperation potential in fostering redevelopment of degraded border areas - a case study approach.

    Science.gov (United States)

    Alexandre Castanho, Rui; Ramírez, Beatriz; Loures, Luis; Fernández-Pozo, Luis; Cabezas, José

    2017-04-01

    Border interactions have reached unprecedented levels in recent decades, not only due to their potential for territorial integration but also considering their role in supranational processes, such as landscape reclamation, infrastructure development and land use planning on European territory. In this scenario, successful examples related to the redevelopment of degraded areas have been showing positive impacts at several levels, such as the social, economic, environmental and aesthetic ones which have ultimately related this process, positively, to sustainability issues. However, concerning to border areas, and due to their inherent legislative and bureaucratic conflicts, the intervention in these areas is more complex. Still, and taking into account previously developed projects and strategies of cross-border cooperation (CBC) in European territory it is possible to identified that the definition of common master plans and common objectives are critical issues to achieve the desired territorial success. Additionally, recent studies have put forward some noteworthy ideas highlighting that it is possible to establish a positive correlation between CBC processes and an increasing redevelopment of degraded border areas, with special focus on the reclamation of derelict landscapes fostering soil reuse and redevelopment. The present research, throughout case study analysis at the Mediterranean level - considering case studies from Portugal, Spain, Monaco and Italy - which presents specific data on border landscape redevelopment, enables us to conclude that CBC processes have a positive influence on the potential redevelopment of degraded border areas, considering not only urban but also rural land. Furthermore, this paper presents data obtained through a public participation process which highlights that these areas present a greater potential for landscape reclamation, fostering resource sustainability and sustainable growth. Keywords: Spatial planning; Land

  17. Developing a simulation for border safeguarding

    CSIR Research Space (South Africa)

    Van Rooyen, S

    2011-09-01

    Full Text Available Operations Other Than War (OOTW). Border safeguarding provides a platform to develop doctrine through simulation. Defence against aggression is replaced by arrests, and target damage assessment is replaced by the number of intercepts without kills... without the use of intelligent threat behaviour. Section 5 contains our conclusions. 2. Joint Control and Command Figure 1 shows how JC2 operate and communicate between the levels of war as defined in [2]. The levels signify Strategic goals...

  18. Effective Border Tax Adjustments for Export Promotion

    OpenAIRE

    Glenn P. Jenkins; Chun-Yan Kuo

    2004-01-01

    In this paper, we address the administration issues associated with the most important border tax adjustments for export expansion. These relate to the refund of input tax credits under the VAT and the relief from customs duties on imported inputs used to produce exports. Such refunds in many developing countries are either not paid in a timely fashion or have been fraudulently overstated in the claims made by exporters. These become impediments that have frequently discouraged foreign invest...

  19. Moment matrices, border bases and radical computation

    OpenAIRE

    Mourrain, B.; J. B. Lasserre; Laurent, Monique; Rostalski, P.; Trebuchet, Philippe

    2013-01-01

    In this paper, we describe new methods to compute the radical (resp. real radical) of an ideal, assuming it complex (resp. real) variety is nte. The aim is to combine approaches for solving a system of polynomial equations with dual methods which involve moment matrices and semi-denite programming. While the border basis algorithms of [17] are ecient and numerically stable for computing complex roots, algorithms based on moment matrices [12] allow the incorporation of additional polynomials, ...

  20. Implementation Issues of Cross-border Acquisitions

    DEFF Research Database (Denmark)

    Wang, Daojuan; Moini, Hamid; Kuada, John

    This study investigates the impacts of main implementation activities on the success of cross-border acquisitions (CBAs) using the survey data from a sample of 103 CBAs conducted by the companies in Scandinavia. The results of regression analysis indicate that due diligence, integration extent......, while acquisition experience exerts negative effect. However, the evidence does not support that planning and coordination will contribute to CBA performance....

  1. 27 CFR 9.154 - Chiles Valley.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Chiles Valley. 9.154... Chiles Valley. (a) Name. The name of the viticultural area described in this section is “Chiles Valley.” (b) Approved maps. The appropriate maps for determining the boundary of the Chiles...

  2. 27 CFR 9.23 - Napa Valley.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Napa Valley. 9.23 Section... THE TREASURY LIQUORS AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas § 9.23 Napa Valley. (a) Name. The name of the viticultural area described in this section is “Napa Valley.”...

  3. Valley Singularities and Baryon Number Violation

    CERN Document Server

    Provero, P

    1994-01-01

    We consider the valley--method computation of the inclusive cross section of baryon number violating processes in the Standard Model. We show that any physically correct model of the valley action should present a singularity in the saddle point valley parameters as functions of the energy of the process. This singularity prevents the saddle point configuration from collapsing into the perturbative vacuum.

  4. Changing European borders: from separation to interface? An introduction

    Directory of Open Access Journals (Sweden)

    Jen Nelles

    2011-03-01

    Full Text Available The aim of this special issue is to address the evolution of European borders from a comparative perspective. This collection of papers spans a wide variety of topics in the realm of borderland studies. Although each engages with a single empirical or theoretical case collectively they identify nuances relevant to the theoretical elaboration of borders, and particularly contribute to the field of sub-national cross-border cooperation. In the course of its analysis each paper contributes to a broader understanding of the definition of cross-border regions; identifies a set of barriers to cooperation in these contexts; explores the role of identities on cooperation and of the role of borders in constructing those identities; and reflects on the socio-political meanings and uses of these international boundaries. This introduction discusses theoretical significance of these contributions to major debates in the study of borders and border regions.

  5. The Future of Silicon Valley

    Institute of Scientific and Technical Information of China (English)

    Joseph Leu

    2006-01-01

    @@ By the end of 1984, Silicon Valley was going through the down cycle fol lowing the PC boom. A hundred PC companies wanted just 10 percent of the market, wanting to strike it rich, as rich as the Apple IPO (Initial Public Of fering) -the Google celebrity IPO of its day.

  6. Atmospheric turbidity over Kathmandu valley

    Science.gov (United States)

    Sapkota, Balkrishna; Dhaubhadel, Rajan

    The atmosphere of Kathmandu Valley has been investigated by using Sunphotometer and Nephelometer during the pre-monsoon period of 1999. The atmospheric turbidity parameters (extinction coefficient for 500 nm wavelength τAG and Angstrom coefficient β) are found high in the morning and show decreasing trends from morning to late afternoon on average. Vertical dispersion of pollutants and increasing pollutant flushing rate by increasing wind speed from morning to late afternoon is the cause for this decreasing trend of turbidity over the valley. Being surrounded by high hills all around the valley, horizontal exit of pollutants without vertical dispersion is not possible. The scattering coefficient bscat of aerosols in ground level troposphere is also found high in the morning, which decreases and becomes minimum during afternoon. During late afternoon, bscat again shows a slightly increasing trend. The reason is the increasing vehicular emission during late afternoon rush period. The average values of Angstrom exponent α, β, τAG and bscat are found to be 0.624±0.023, 0.299±0.009, 0.602±0.022 and 0.353±0.014 km -1, respectively. About 76.8% of the observed values of β lie above 0.2 indicating heavy particulate pollution in the valley. A comparison of observed values of turbidity parameters with other major cities of the world shows that Kathmandu is as polluted as cities like Jakarta, Kansas, Beijing, Vienna, etc.

  7. Small Border Traffic and Cross-Border Tourism Between Poland and the Kaliningrad Oblast of the Russian Federation

    Directory of Open Access Journals (Sweden)

    Anisiewicz Renata

    2014-06-01

    Full Text Available Polish and Russian cross-border cooperation is governed by lawful agreements. The enlargement of the Schengen Area had a significant impact on Kaliningrad Oblast relations and cross-border cooperation with its neighbours. The introduction of visas between Poland and Russia hindered and restricted local border trade which had for years been the only measure mitigating social and economic problems of the cross-border regions. Nevertheless, border traffic between Poland and Kaliningrad grew steadily, to exceed four million in 2012.

  8. The Central Valley Hydrologic Model

    Science.gov (United States)

    Faunt, C.; Belitz, K.; Hanson, R. T.

    2009-12-01

    Historically, California’s Central Valley has been one of the most productive agricultural regions in the world. The Central Valley also is rapidly becoming an important area for California’s expanding urban population. In response to this competition for water, a number of water-related issues have gained prominence: conjunctive use, artificial recharge, hydrologic implications of land-use change, subsidence, and effects of climate variability. To provide information to stakeholders addressing these issues, the USGS made a detailed assessment of the Central Valley aquifer system that includes the present status of water resources and how these resources have changed over time. The principal product of this assessment is a tool, referred to as the Central Valley Hydrologic Model (CVHM), that simulates surface-water flows, groundwater flows, and land subsidence in response to stresses from human uses and from climate variability throughout the entire Central Valley. The CVHM utilizes MODFLOW combined with a new tool called “Farm Process” to simulate groundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a monthly basis. This model was discretized horizontally into 20,000 1-mi2 cells and vertically into 10 layers ranging in thickness from 50 feet at the land surface to 750 feet at depth. A texture model constructed by using data from more than 8,500 drillers’ logs was used to estimate hydraulic properties. Unmetered pumpage and surface-water deliveries for 21 water-balance regions were simulated with the Farm Process. Model results indicate that human activities, predominately surface-water deliveries and groundwater pumping for irrigated agriculture, have dramatically influenced the hydrology of the Central Valley. These human activities have increased flow though the aquifer system by about a factor of six compared to pre-development conditions. The simulated hydrology reflects spatial

  9. Potential effects of the United States-Mexico border fence on wildlife.

    Science.gov (United States)

    Flesch, Aaron D; Epps, Clinton W; Cain, James W; Clark, Matt; Krausman, Paul R; Morgart, John R

    2010-02-01

    Security infrastructure along international boundaries threatens to degrade connectivity for wildlife. To explore potential effects of a fence under construction along the U.S.-Mexico border on wildlife, we assessed movement behavior of two species with different life histories whose regional persistence may depend on transboundary movements. We used radiotelemetry to assess how vegetation and landscape structure affect flight and natal dispersal behaviors of Ferruginous Pygmy-Owls (Glaucidium brasilianum), and satellite telemetry, gene-flow estimates, and least-cost path models to assess movement behavior and interpopulation connectivity of desert bighorn sheep (Ovis canadensis mexicana). Flight height of Pygmy-Owls averaged only 1.4 m (SE 0.1) above ground, and only 23% of flights exceeded 4 m. Juvenile Pygmy-Owls dispersed at slower speeds, changed direction more, and had lower colonization success in landscapes with larger vegetation openings or higher levels of disturbance (p < or = 0.047), which suggests large vegetation gaps coupled with tall fences may limit transboundary movements. Female bighorn sheep crossed valleys up to 4.9 km wide, and microsatellite analyses indicated relatively high levels of gene flow and migration (95% CI for F(ST)=0.010-0.115, Nm = 1.9-24.8, M =10.4-15.4) between populations divided by an 11-km valley. Models of gene flow based on regional topography and movement barriers suggested that nine populations of bighorn sheep in northwestern Sonora are linked by dispersal with those in neighboring Arizona. Disruption of transboundary movement corridors by impermeable fencing would isolate some populations on the Arizona side. Connectivity for other species with similar movement abilities and spatial distributions may be affected by border development, yet mitigation strategies could address needs of wildlife and humans.

  10. Border Malaria Associated with Multidrug Resistance on Thailand-Myanmar and Thailand-Cambodia Borders: Transmission Dynamic, Vulnerability, and Surveillance

    Directory of Open Access Journals (Sweden)

    Adisak Bhumiratana

    2013-01-01

    Full Text Available This systematic review elaborates the concepts and impacts of border malaria, particularly on the emergence and spread of Plasmodium falciparum and Plasmodium vivax multidrug resistance (MDR malaria on Thailand-Myanmar and Thailand-Cambodia borders. Border malaria encompasses any complex epidemiological settings of forest-related and forest fringe-related malaria, both regularly occurring in certain transmission areas and manifesting a trend of increased incidence in transmission prone areas along these borders, as the result of interconnections of human settlements and movement activities, cross-border population migrations, ecological changes, vector population dynamics, and multidrug resistance. For regional and global perspectives, this review analyzes and synthesizes the rationales pertaining to transmission dynamics and the vulnerabilities of border malaria that constrain surveillance and control of the world’s most MDR falciparum and vivax malaria on these chaotic borders.

  11. Research and Evaluation on Ecotourism Resources of Jilong Valley in Everest National Nature Reserve

    Institute of Scientific and Technical Information of China (English)

    WangDegang; LiQian

    2005-01-01

    Jitong is a place behind The Himalayas, which is almost isolated from the world. There is typical vertical ecosystem thanks to its special geological environment. So it is honored as ""the most abundant species gene warehouse in the Plateau Area""and ""the most beautiful valley in the world"". To exploit this valiey is necessary along with the construction of Jilong Port on the border of Sino-Nepal Based on the research on the spot, the ecological resources there are evaluated and an idea that regards hiking tourism as main form and ecotourism as the theme is put forward in this paper, which explores a way to develop the valley on the basis of sustainability.

  12. Risk factors for vampire bat bites in the Apurimac river valley

    OpenAIRE

    Ormaeche M, Melvy; Dirección General de Epidemiología, Ministerio de Salud. Lima, Perú. Enfermera Epidemiologa.; Gómez-Benavides, Jorge; Dirección General de Epidemiología, Ministerio de Salud, Lima, Perú. Médico epidemiólogo.

    2007-01-01

    Wild rabies in Peru is related in most of cases to (Desmodus rotundus) vampire bats bite. The zone of Apurimac river valley it has notified in frequent form attacks of vampires as much to the cattle as to the settlers. A matched case-control study was carried to determine the risk factors associated with the vampire bite in three communities bordering to the river. Were included 39 cases and 67 controls, 70% were women, 14% recognized the rabies as a mortal disease and 36% identified to t...

  13. Borders as membranes :metaphors and models for improved policy in border regions.

    Energy Technology Data Exchange (ETDEWEB)

    Malczynski, Leonard A.; Passell, Howard David; Forster, Craig B. (University of Utah, Salt Lake City, UT); Cockerill, Kristan (Cockerill Consulting, Boone, NC)

    2005-10-01

    Political borders are controversial and contested spaces. In an attempt to better understand movement along and through political borders, this project applied the metaphor of a membrane to look at how people, ideas, and things ''move'' through a border. More specifically, the research team employed this metaphor in a system dynamics framework to construct a computer model to assess legal and illegal migration on the US-Mexico border. Employing a metaphor can be helpful, as it was in this project, to gain different perspectives on a complex system. In addition to the metaphor, the multidisciplinary team utilized an array of methods to gather data including traditional literature searches, an experts workshop, a focus group, interviews, and culling expertise from the individuals on the research team. Results from the qualitative efforts revealed strong social as well as economic drivers that motivate individuals to cross the border legally. Based on the information gathered, the team concluded that legal migration dynamics were of a scope we did not want to consider hence, available demographic models sufficiently capture migration at the local level. Results from both the quantitative and qualitative data searches were used to modify a 1977 border model to demonstrate the dynamic nature of illegal migration. Model runs reveal that current US-policies based on neo-classic economic theory have proven ineffective in curbing illegal migration, and that proposed enforcement policies are also likely to be ineffective. We suggest, based on model results, that improvement in economic conditions within Mexico may have the biggest impact on illegal migration to the U.S. The modeling also supports the views expressed in the current literature suggesting that demographic and economic changes within Mexico are likely to slow illegal migration by 2060 with no special interventions made by either government.

  14. Bordering Binarities and Cognitive Cartography: What on Earth Does Literature Have to do with Border Transactions?

    Directory of Open Access Journals (Sweden)

    Ruben Moi

    2009-03-01

    Full Text Available Although literature and poetry have numerous borders of their own,these are rarely assumed to have any significance for the world out-side the text itself. A number of reasons for this distinctive division certainly stem from the literary field itself. This paper intends to indicate the exclusivist stance of some theories of literature, and the inclucivist of others, before exploring the possibilities of bridging between borders in text and territory by reference to the life and literature of Oscar Wilde and a performative and imaginative analysis of Paul Muldoon's epigrammatic poem The Plot.

  15. Of States and Borders on the Internet

    DEFF Research Database (Denmark)

    Shklovski, Irina; Struthers, David

    2010-01-01

    in Kazakhstan shows that the naming of a state-controlled space on the Internet, through the use of country code top-level domain names (ccTLDs), does in fact matter to the average user. People are aware of national boundary traversals as they navigate the Internet. Respondents in our study identified...... their activity on the Internet as happening within or outside the space of the state to which they felt allegiance and belonging. National borders are demarcated on the Internet through naming via ccTLDs and can result in individual expressions of various types of nationalism online. We find that cc...

  16. Application of IR microbolometers in border surveillance

    Science.gov (United States)

    Breakfield, David K.; Norton, Peter; Plemons, Dan; Rodriguez, Christian; Sustare, Dennis

    2007-04-01

    BAE Systems led a collaborative study with New Mexico State University to investigate a series of ground based persistent surveillance solutions for potential use along the Southwest border of the United States. This study considered a wide range of system options for mobile and fixed site applications. This paper summarizes the findings of the study including the central role of the imaging subsystems in mobile ground based surveillance solutions and the suitability of uncooled IR Microbolometers within this subsystem. The paper also provides a discussion of the benefits of real time decision support applications when fielding a persistent surveillance solution.

  17. Early seismicity of the Scottish Borders Region

    Directory of Open Access Journals (Sweden)

    R. M. W. Musson

    2004-06-01

    Full Text Available This paper considers the seismicity of Southern Scotland and Northern England up to the year 1750. This area was formerly a border area between two states that eventually became politically united. Much of the area is uplands, and the seismicity is moderate to low. This makes for some problems in studying historical seismicity, yet the area provides a number of case studies of general interest in the field of historical seismology, including a rare case of being able to track down a «missing» earthquake.

  18. The new borders of Saint Louis

    Directory of Open Access Journals (Sweden)

    Fabrice Delsahut

    2012-09-01

    Full Text Available In 1904 the Olympic and Anthropologic Games in Saint Louis, Missouri, were lost in the chaos of the Louisiana Purchase (Universal Exposition. Although the expected universal spirit, for a long time Saint Louis expressed racial prejudices of its personal. This paper shows up how Sport Sciences and growing up Anthropology acted together in sense of serving questioned causes like racial ranking and colonization right. They were important in improving a feeling of nation in North American that took in grant sport as part of its constitution. The Universal Exposition and Market of Saint Louis offered new possibilities in definition of technological, racial, geographic and corporal borders.

  19. Picking and Choosing the ‘Sovereign’Border

    DEFF Research Database (Denmark)

    Parker, Noel; Adler-Nissen, Rebecca

    2012-01-01

    We argue that the continued persistence of borders is an effect of their constitutive role for the many dimensions of a social particular. States cannot choose to have a border; but they can and do make choices amongst the materials available on the various planes of inscription for bordering....... For contemporary states the planes have become increasingly disaggregated, in the sense that they do not fall into place at one and the same border. Thus, states have to pick and choose different articulations (often inconsistently) on different planes. We illustrate these ideas with instances, present......-day and historical, of bordering. A corollary of there being more need to pick and choose is that articulations of sovereignty change. So, sovereignty is increasingly the material of ‘sovereignty games’, where sovereignty is used as a political instrument. In sum, our theory directs attention to state bordering...

  20. Managing US-Mexico "border health": an organizational field approach.

    Science.gov (United States)

    Collins-Dogrul, Julie

    2006-12-01

    During World War II Mexican and US health professionals and organizations constructed a transnational organizational field to manage the border's public health problems. Despite barriers to inter-organizational cooperation, including disparate administrative structures and North-South stratification, the field's transnational approach to health on the border has continued for 60 years. Using archival data to track changes in the number and types of organizations, this article argues that the field practitioners call "border health" reconfigured during the North American Free Trade Association (NAFTA) decade from an era of loosely organized professionals to a specialized bureaucracies era. This change brought new vitality to border health, with transnational ties increasing and diversifying, but has not weakened entrenched cross-border inequalities. The organizational history of the US-Mexico border health field demonstrates how macro-politics and inter-organizational stratification shape transnational public health problems.

  1. Cross-border shopping and tourism destination marketing

    DEFF Research Database (Denmark)

    Makkonen, Teemu

    2016-01-01

    This article addresses the economic impact that cross-border shopping has on the local tourism industry and the ways that cross-border shopping is taken advantage of in tourism destination marketing. Southern Jutland–situated in Denmark just north of the German border, where border shops situated...... a tourist attraction in itself, which benefits the local economies on both sides of the border. However, this potential is not taken advantage of in tourism destination marketing. The article, thus, concludes with suggestions for the tourism industry to develop its image and brand by integrating cross...... just south of the same border enable Danes to capitalize on the lower value added tax levels in Germany–is utilized as an illustrative case example. The data was collected by analysing the relevant tourism destination marketing material and via interviews with local destination marketing organizations...

  2. Comparative balance of border regulations in four neighboring Caribbean countries

    Directory of Open Access Journals (Sweden)

    Silvia Cristina Mantilla Valbuena

    2016-07-01

    Full Text Available This article seeks to investigate whether there is a potential for border integration among four adjoining Caribbean countries: Colombia, Nicaragua, Panama and Costa Rica. The discussion is part of the “cross-border” concept and the integration of subnational entities in two or more nation states, with particular emphasis on the role played by the societies that inhabit border regions. A comparative analysis model is used to assess border regulations in each country’s various territorial levels based on relevant legal elements, autonomous processes and decentralization. The article concludes that the more modern each country’s border regulations and constitutional, political and administrative reforms are, the greater the likelihood of cross-border integration. Colombia and Nicaragua have the highest potential for integrating their borders, whereas Panama and Costa Rica have the lowest potential.

  3. Temporary reintroduction of border controls at French borders inside the Schengen Area

    CERN Multimedia

    2015-01-01

    The French authorities have informed CERN that, in view of the upcoming COP21 Paris Climate Conference, France will exceptionally reintroduce controls at its borders with Schengen states for one month from 13 November to 13 December 2015. All border posts and crossing points between France and Switzerland will be affected by this measure.   Members of the personnel are therefore reminded that, when crossing borders within the Schengen Area*, they must carry: either, in the case of citizens of European Economic Area (EEA) countries and Switzerland, an official identity document (identity card or passport); or, in the case of non-EEA and non-Swiss citizens, an identity document together with a Schengen visa if they are subject to this obligation, or an identity document together with a residence permit issued by a Schengen state** if they have one.   The French authorities will make every effort to limit the impact of this measure on cross-border traffic, and wish to thank the members of th...

  4. Border Cracks: Approaching Border Security From a Complexity Theory and Systems Perspective

    Science.gov (United States)

    2012-12-01

    33 o. Secretaria de Seguridad Publica (SSP) ..................................34 viii p. Federal Police (PF...SIU Sensitive Information Unit SOD Special Operations Division SSP Secretaria de Seguridad Publica SWB Southwest Border Initiative SWBICP...www.usatoday.com/news/military/2010-04-06-Mexico_N.htm. 34 o. Secretaria de Seguridad Publica (SSP) SSP is part of the Federal Civil Service whose aim is

  5. Electricity without borders - The need for cross-border transmission investment in Europe

    NARCIS (Netherlands)

    Brancucci Martínez-Anido, C.

    2013-01-01

    An increase in cross-border electricity flows is foreseen in Europe in the coming decades due to large-scale penetration of renewable energy, the electrical integration of the Euro-Mediterranean region, the electrification of transport, and possible shifts in electricity generation dispatc

  6. Mechanically and optically controlled graphene valley filter

    Energy Technology Data Exchange (ETDEWEB)

    Qi, Fenghua; Jin, Guojun, E-mail: gjin@nju.edu.cn [National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 (China)

    2014-05-07

    We theoretically investigate the valley-dependent electronic transport through a graphene monolayer modulated simultaneously by a uniform uniaxial strain and linearly polarized light. Within the Floquet formalism, we calculate the transmission probabilities and conductances of the two valleys. It is found that valley polarization can appear only if the two modulations coexist. Under a proper stretching of the sample, the ratio of the light intensity and the light frequency squared is important. If this quantity is small, the electron transport is mainly contributed by the valley-symmetric central band and the conductance is valley unpolarized; but when this quantity is large, the valley-asymmetric sidebands also take part in the transport and the valley polarization of the conductance appears. Furthermore, the degree of the polarization can be tuned by the strain strength, light intensity, and light frequency. It is proposed that the detection of the valley polarization can be realized utilizing the valley beam splitting. Thus, a graphene monolayer can be used as a mechanically and optically controlled valley filter.

  7. Zhongguan Village, China's Silicon Valley

    Institute of Scientific and Technical Information of China (English)

    Liu Xinwen

    2008-01-01

    @@ In 1999,driven by the dream of using technology to change people's lives,Li Yanhong,returned to Zhongguancun(Zhongguan Village in Chinese),Beijing from Silicon Valley in the U.S.to create Baidu.com.Over the years,Baidu has become the most frequently hitted website in China as well as the largest Chinesc search engine and Chinese language website in the world.

  8. Multi-TSO cross border balancing mechanism

    Energy Technology Data Exchange (ETDEWEB)

    Llorens, Maria Luisa; Moreno, Laura; Fuente, Jose Ignacio de la; Junco, Paula; Arenillas, Jorge [Red Electrica de Espana (REE) S.A.U., Madrid (Spain). Operation Markets Dept.; Pereira, Pedro [REN - Servicos, S.A., Lisbon (Portugal). Gabinete Mercado e Liquidacoes; Chabanne, Colas [RTE Reseau de Transport d' Electricite, Paris (France). Markets Dept.; Apoyan, Lalake; Barbieri, Galileo [RTE Reseau de Transport d' Electricite, Paris (France). Cross-Border Market Design

    2012-07-01

    The balancing market integration has been highlighted as a necessary step to reach the European Union goal for the development of an effective, competitive single market for electricity across Europe. In this paper it is described the work done by RTE, REE and REN regarding the design of a non-discriminatory, efficient and reliable multi-TSO Cross Border Balancing Mechanism at regional level, extendible to other control areas. The implementation of this multi-TSO Cross Border Balancing Mechanism will aim at increasing the operational security, enhancing the Liquidity and Competition of balancing markets, facilitating the integration of energy produced by Renewable Energy Sources while optimizing the use of Interconnection capacities. With this mechanism, the three TSOs will be able to exchange to each other balancing energy through the available interconnection capacities after the last intraday market sessions. This mechanism will be based on a common IT platform where TSOs will share their available surplus of reserves and communicate their balancing needs. The available interconnection capacities will be taken into account in an automatic and centralized way. Two main options are investigated regarding the allocation method: on the one hand, the first come first served approach (FCFS), on the other hand, the ''social welfare'' optimization approach. (orig.)

  9. First Philosophy in the Border Zone

    Directory of Open Access Journals (Sweden)

    Viggo Rossvaer

    2016-09-01

    Full Text Available The article will be devoted to such problems as a idea of subsidiarity, a cosmopolitan right and a visitor figure in context and interpretation of ancient and modern philosophy. The article deals with the concept of subsidiarity which is taken as a point of departure for the discipline of borderology, an academic study with Kantian roots. Borderology, according to the principle of subsidiarity, can present as a new field of investigation which invites philosophers and social scientists to replace a “top down” with a “bottom up” procedure. The figure of the visitor is close linked with the experience of subsidiarity which means the freedom and initiative below the level of State. In Immanuel Kant’s strategy for perpetual peace, the figure of the visitor launches a critique of a tendency to self-aggrandizement, characteristic of the modern State and thereby a defense of the political independence of local border regions. The visitor also invites us to see, think and work to liberate our own subjectivity from false voices of sovereignty. Kant articulates the offer of the visitor by bringing in the term Verkehr. Using Kant scholar Otfried Höffe,s methodology we show how idea of subsidiarity is overlooked in international political theory, explain some constitutive principles of borderology, from which is more important is the methodological principle of an intercultural discourse and presents borderology as an anti-Huntingtonian model for border studies.

  10. Seismicity at Jalisco-Nayarit Border, Mexico

    Science.gov (United States)

    Rutz, M.; Nunez-Cornu, F.; Camarena, M.; Trejo, E.; Reyes-Davila, G.; Suarez-Plasencia, C.

    2003-12-01

    Since 2002 a regional seismic network from Jalisco Civil Defense and University of Guadalalajara is monitoring seismicity at the northwest border of Jalisco block. With the installation of a seismic station on Ceboruco Volcano, by Nayarit Civil Defense, coverage of the network extends to east. Ceboruco Volcano is located on the Tepic-Zacoalco graben, the east border of Jalisco block, this allow us to begin to monitoring this area. The zone of Bahia de Banderas, between the north coast of Jalisco and south coast of Nayarit, probably on a tectonic triple point, is a region of high seismic potential. Activ tectonic structures and clusters in the zone of El Tuito and the Dam Cajon de Pe¤as have been identified. The seismicity in the north area of the bay is low, meanwhile in the south, where the bay is deeper, the seismicity level is higher with an East-West tendency. At the east, the Amatlan de Ca¤as-Ameca zone presents continue activity, here have been possible to locate events with local magnitude between 2 and 4. Tectonovolcanic events registred at Ceboruco station presents waveform with scattering. The seismic distribution of the coast of Jalisco shows parallel alignments to the trench throughout al the coast. Other perpendicular alignments to the coastline show active morphologic structures within the Jalisco block related to the subduction of the Rivera plate under the Jalisco block.

  11. The Assessment Of Geographical Borders In Economic Research

    Directory of Open Access Journals (Sweden)

    Markowska Małgorzata

    2016-12-01

    Full Text Available The length of common border between two geographical units is frequently used as a basic weight in spatial analysis. The newest methodological propositions such as tests for hierarchical relations (Markowska et. al. 2014; Sokołowski et. al. 2013, regional spatial moving average and new spatial correlation coefficient (Markowska et. al. 2015 are using border lengths. In cited references new methods have been illustrated by analyses for EU NUTS2 regions. It is obvious that borders between regions belonging to different countries have different socio-economic impact than borders between regions lying in the same country. A new simple method for assesment the importance of borders is proposed in the paper. It is based on a chosen macroeconomic variable available at NUTS 2 level (e.g. GDP, infant mortality, Human Development Index. For neighboring regions bigger value is divided by smaller value giving the local importance of the given border. These measures of local border importance can be than average for borders within the same country and for borders for each pair of neighboring countries.

  12. "Crossing Borders" ja valmimislootuses Eesti Muusika- ja Teatriakadeemia / Malle Maltis

    Index Scriptorium Estoniae

    Maltis, Malle, 1977-

    2010-01-01

    19. - 29. augustini EMTAs toimunud rahvusvahelisest suvekursusest "Crossing Borders in Interpretation of Classical Music and Jazz". Kooli välissuhete prorektor sellest projektist ja muusikaakadeemia juurdeehitusest

  13. "Crossing Borders" ja valmimislootuses Eesti Muusika- ja Teatriakadeemia / Malle Maltis

    Index Scriptorium Estoniae

    Maltis, Malle, 1977-

    2010-01-01

    19. - 29. augustini EMTAs toimunud rahvusvahelisest suvekursusest "Crossing Borders in Interpretation of Classical Music and Jazz". Kooli välissuhete prorektor sellest projektist ja muusikaakadeemia juurdeehitusest

  14. Zones of representation for PM{sub 10} measurements along the US/Mexico border

    Energy Technology Data Exchange (ETDEWEB)

    Chow, J.C.; Watson, J.G. [Desert Research Institute, 2215 Raggio Parkway, 89512 Reno, NV (United States)

    2001-08-10

    The 'Imperial/Mexicali Valley Cross-Border PM{sub 10} Transport Study' acquired a database of meteorological and air quality measurements to determine source contributions to elevated PM{sub 10} concentrations and to estimate transport of PM{sub 10} between the US and Mexico. The study was conducted from 13 March 1992 to 29 August 1993, in a 80-km long by 20-km wide area spanning the US/Mexico border approximately 200 km inland from the coast of the Pacific Ocean, with monitoring sites located in the Imperial Valley on the US side and in the Mexicali Valley on the Mexico side. Measurements of PM{sub 10} (particles with aerodynamic diameters less than 10 {mu}m) mass, elements, water-soluble cations (i.e. sodium, potassium, ammonium) and anions (i.e. chloride, nitrate, sulfate), organic and elemental carbon and particle light absorption were acquired at two base sites on an every-sixth-day schedule supplemented by daily monitoring during winter and 4 times per day monitoring during intensive periods. Measurements were also taken at as many as 30 neighborhood (satellite) sites during week-long intensive monitoring periods in spring, summer and winter. This paper examines the zones of representation of long-term PM{sub 10} monitors by comparing their measurements with those from a spatially dense network of satellite sites. PM{sub 10} concentrations at the Mexicali site were consistently 30 to 50% higher than those observed at the Calexico site, even though the two sites were only 12 km apart. Distinct diurnal variations were found, with 6-h average PM{sub 10} concentrations often varying by a factor of 2 throughout the day - lowest during afternoon (12.00-18.00 h PST) and highest during night time (18.00-24.00 h PST). On average, crustal material accounted for 32-35% of annual-average PM{sub 10}, carbonaceous aerosol for 20-30%, and ionic species for 8-10%. Levels of trace elements and sea salt were in the range of 1-4% of PM{sub 10}. Significant

  15. Sediment connectivity at source-bordering aeolian dunefields along the Colorado River in the Grand Canyon, USA

    Science.gov (United States)

    Sankey, Joel; Kasprak, Alan; Caster, Joshua; East, Amy; Fairley, Helen

    2017-04-01

    Aeolian dunefields that are primarily built and maintained with river-derived sediment are found in many river valleys throughout the world and are impacted by changes in climate, land use, and river regulation. Quantifying the dynamic response of these aeolian dunefields to alterations in river flow is especially difficult given the highly correlated nature of the interacting geomorphic and sediment transport processes that drive their formation and maintenance. We characterize the effects of controlled river floods on changes in sediment connectivity at source-bordering aeolian dunefields in the Grand Canyon, USA. Controlled floods from the Glen Canyon Dam are used to build sandbars along the Colorado River in Grand Canyon which provide the main sediment source for aeolian dunefields. Aeolian dunefields are a primary resource of concern for land managers in the Grand Canyon because they often contain buried archaeological features. To characterize dunefield response to controlled floods, we use a novel, automated approach for the mechanistic segregation of geomorphic change to discern the geomorphic processes responsible for driving topographic change in very high resolution digital elevation models-of-difference (DODs) that span multiple, consecutive controlled river floods at source-bordering dunefields. We subsequently compare the results of mechanistic segregation with modelled estimates of aeolian dunefield evolution in order to understand how dunefields respond to contemporary, anthropogenically-driven variability in sediment supply and connectivity. These methods provide a rapid technique for sediment budgeting and enable the inference of spatial and temporal patterns in sediment flux between the fluvial and aeolian domains. We anticipate that this approach will be adaptable to other river valleys where the interactions of aeolian, fluvial, and hillslope processes drive sediment connectivity for the maintenance of source-bordering aeolian dunefields.

  16. A comparative assessment of contaminants in fish from four resacas of the Texas, USA-Tamaulipas, Mexico border region.

    Science.gov (United States)

    Mora, M A; Papoulias, D; Nava, I; Buckler, D R

    2001-07-01

    A recent survey of contaminant information for the Lower Rio Grande Valley (LRGV), Texas, has shown that little is known about contaminants and their impacts on biota of resacas (oxbows) along the US-Mexico border. In 1996, fish were collected from four resacas in the Texas-Tamaulipas border region to assess contaminant loadings and their impacts on fish and birds. Tissue residue concentrations in fish were analyzed and also compared to two histopathological bioindicators of unhealthy environmental conditions. Of the organochlorine insecticides measured, DDE was the most common and was present at relatively high concentrations (10 microg/g w/w) at some sites. DDE concentrations were nearly 20 times greater in fish from resacas in Texas than from resacas in Tamaulipas, although the limited sample sizes obtained precluded statistical comparisons. DDE concentrations in fish from the two Texas resacas were also greater than those reported in fish from nearby areas during the 1980s and 1990s. Most trace element concentrations were similar among resacas from Texas and Tamaulipas. Arsenic, however, was two to six times greater in fish from a downtown resaca in Matamoros than in fish from other resacas in Tamaulipas and Texas. The bioindicators, pigment accumulation, and macrophage aggregates (MAs), in general, reflected the contamination indicated by the tissue residues for each site. Overall, it appears that some resacas of the US-Mexico border region are contaminant sinks and could pose potential health or reproductive problems for fish and wildlife, and humans that consume fish from those sites.

  17. Health-related quality of life in a binational population with diabetes at the Texas-Mexico border.

    Science.gov (United States)

    Mier, Nelda; Bocanegra-Alonso, Anabel; Zhan, Dongling; Zuniga, Miguel A; Acosta, Rosa I

    2008-03-01

    To examine physical and mental health domains of health-related quality of life (HRQL) in a binational adult population with type 2 diabetes at the Texas-Mexico border, and to explore individual and social correlates to physical and mental health status. Adults 18 years and older with type 2 diabetes residing in the South Texas Lower Rio Grande Valley and in Reynosa, Tamaulipas, Mexico, were recruited using a convenience sampling technique and interviewed face-to-face with a structured survey. HRQL was measured using physical and mental health summary components of the Medical Outcomes Study Short Form. HRQL correlates included demographic characteristics, health factors, access to healthcare, and family support. Samples characteristics were compared using the Student's t-test or Mann-Whitney U test. Associations between dependent and independent variables were examined using unadjusted and adjusted (multiple variable) logistic regression models. There were no significant differences between Valley and Reynosa respondents in physical or mental health status scores. Valley participants with lower socioeconomic status and those perceiving their supportive relative's level of diabetes-related knowledge as "low" were more likely to report worse physical health than those lacking those characteristics. In the Reynosa group, lower physical health status was associated with duration of diabetes and insulin use. Both sample populations with clinical depressive symptoms were more likely to have worse physical and mental health than those without such symptoms. HRQL is an important outcome in monitoring health status. Understanding the levels and influences of HRQL in U.S.-Mexico border residents with diabetes may help improve diabetes management programs.

  18. The Impact of Land Border Security on Terrorism Financing: Turkey’s Southeast Land Border and the PKK

    Science.gov (United States)

    2013-12-01

    LAND BORDER SECURITY ON TERRORISM FINANCING: TURKEY’S SOUTHEAST LAND BORDER AND THE PKK by Yunus Eren December 2013 Thesis Advisor...FINANCING: TURKEY’S SOUTHEAST LAND BORDER AND THE PKK 5. FUNDING NUMBERS 6. AUTHOR(S) Yunus Eren 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES...of terrorist organizations takes an important place in countering terrorism. This thesis focuses on the Kurdistan Workers’ Party ( PKK ) financing

  19. Spin-Valley Beam Splitter in Graphene

    CERN Document Server

    Song, Yu; Shi, Zhi-Gui; Li, Shun; Zhang, Jian

    2016-01-01

    The fourfold spin-valley degenerate degrees of freedom in bulk graphene can support rich physics and novel applications associated with multicomponent quantum Hall effects and linear conductance filtering. In this work, we study how to break the spin-valley degeneracy of electron beams spatially. We propose a spin-valley beam splitter in a gated ferromagnetic/pristine/strained graphene structure. We demonstrate that, in a full resonant tunneling regime for all spin-valley beam components, the formation of quasi-standing waves can lead four giant lateral Goos-H\\"{a}nchen shifts as large as the transverse beam width, while the interplay of the two modulated regions can lead difference of resonant angles or energies for the four spin-valley flavors, manifesting an effective spin-valley beam splitting effect. The beam splitting effect is found to be controllable by the gating and strain.

  20. Mountains, glaciers, and mines—The geological story of the Blue River valley, Colorado, and its surrounding mountains

    Science.gov (United States)

    Kellogg, Karl; Bryant, Bruce; Shroba, Ralph R.

    2016-02-10

    This report describes, in a nontechnical style, the geologic history and mining activity in the Blue River region of Colorado, which includes all of Summit County. The geologic story begins with the formation of ancient basement rocks, as old as about 1700 million years, and continues with the deposition of sedimentary rocks on a vast erosional surface beginning in the Cambrian Period (about 530 million years ago). This deposition was interrupted by uplift of the Ancestral Rocky Mountains during the late Paleozoic Era (about 300 million years ago). The present Rocky Mountains began to rise at the close of the Mesozoic Era (about 65 million years ago). A few tens of millions years ago, rifting began to form the Blue River valley; a major fault along the east side of the Gore Range dropped the east side down, forming the present valley. The valley once was filled by sediments and volcanic rocks that are now largely eroded. During the last few hundred-thousand years, at least two periods of glaciation sculpted the mountains bordering the valley and glaciers extended down the Blue River valley as far south as present Dillon Reservoir. Discovery of deposits of gold, silver, copper, and zinc in the late 1800s, particularly in the Breckenridge region, brought an influx of early settlers. The world-class molybdenum deposit at Climax, mined since the First World War, reopened in 2012 after a period of closure.

  1. Effect of the US-Mexico border region in cardiovascular mortality: ecological time trend analysis of Mexican border and non-border municipalities from 1998 to 2012.

    Science.gov (United States)

    Anaya, Gabriel; Al-Delaimy, Wael K

    2017-05-06

    An array of risk factors has been associated with cardiovascular diseases, and developing nations are becoming disproportionately affected by such diseases. Cardiovascular diseases have been reported to be highly prevalent in the Mexican population, but local mortality data is poor. The Mexican side of the US-Mexico border has a culture that is closely related to a developed nation and therefore may share the same risk factors of cardiovascular diseases. We wanted to explore if there was higher cardiovascular mortality in the border region of Mexico compared to the rest of the nation. We conducted a population based cross-sectional time series analysis to estimate the effects of education, insurance and municipal size in Mexican border (n = 38) and non-border municipalities (n = 2360) and its association with cardiovascular age-adjusted mortality rates between the years 1998-2012. We used a mixed effect linear model with random effect estimation and repeated measurements to compare the main outcome variable (mortality rate), the covariates (education, insurance and population size) and the geographic delimiter (border/non-border). Mortality due to cardiovascular disease was consistently higher in the municipalities along the US-Mexico border, showing a difference of 78 · 5 (95% CI 58 · 7-98 · 3, p size and higher education levels showed a reduction in cardiovascular mortality of 12 · 6 (95% CI 11 · 4-13 · 8, p Mexico border region is disproportionately affected by cardiovascular disease mortality as compared to the non-border region of Mexico. This was not explained by education, population density, or insurance coverage. Proximity to the US culture and related diet and habits can be explanations of the increasing mortality trend.

  2. California's restless giant: the Long Valley Caldera

    Science.gov (United States)

    Hill, David P.; Bailey, Roy A.; Hendley, James W.; Stauffer, Peter H.; Marcaida, Mae

    2014-01-01

    Scientists have monitored geologic unrest in the Long Valley, California, area since 1980. In that year, following a swarm of strong earthquakes, they discovered that the central part of the Long Valley Caldera had begun actively rising. Unrest in the area persists today. The U.S. Geological Survey (USGS) continues to provide the public and civil authorities with current information on the volcanic hazard at Long Valley and is prepared to give timely warnings of any impending eruption.

  3. Who’s Who at the Border? A rights-based approach to identifying human trafficking at international borders

    Directory of Open Access Journals (Sweden)

    Marika McAdam

    2013-11-01

    Full Text Available International borders are widely touted as bastions in the fight against trafficking in persons. This article acknowledges the important role border officials play in preventing human trafficking, but calls for expectations to be tempered by deference to the conceptual complexity of cross-border trafficking and the migration processes involved. The fact that many trafficked victims begin their journeys as irregular or smuggled migrants highlights the challenge posed to border officials in identifying trafficked persons among the people they encounter. Indicators of trafficking generally relate to the exploitation phase, leaving border officials with little guidance as to how persons vulnerable to trafficking can be accurately identified before any exploitation has occurred. Ultimately, this paper advocates a pragmatic rights-based approach in designating anti-trafficking functions to border officials. A rights-based approach to border control acknowledges the core work of border officials as being to uphold border integrity, while ensuring that their performance of this role does not jeopardise the rights of those they intercept nor result in missed opportunities for specialists to identify trafficked persons and other vulnerable people among them.

  4. Intrinsic valley Hall effect in graphene

    Science.gov (United States)

    Yang, Mou; Zhang, Wen-Lian; Liu, Hai; Bai, Yan-Kui

    2017-04-01

    If electrons are incident from an armchair graphene ribbon into the bulk graphene region, the electronic diffraction occurs. Because of the different triangular wrapping of the energy dispersion between valleys K and K ‧ , the electrons of valley K tend to be diffracted to one side and those of valley K ‧ to the other side. When the current is injected from the armchair ribbon of a four-terminal graphene device, the major portion of the incident current of valley K flows through one side arm and the minor portion through the other side arm. The ratio between them is derived to be 1 + 4 E / 3 in the low energy limit, where E is the energy in units of hopping parameter. The major arm for valley K is the minor arm for valley K ‧ . This results in the rise of the valley Hall effect, which is an intrinsic property of graphene stemming from the different electronic structure of the two valleys. The valley Hall conductance is calculated to be (2 E / 3)G0 with G0 being the conductance supported by the injection ribbon.

  5. Trion valley coherence in monolayer semiconductors

    Science.gov (United States)

    Hao, Kai; Xu, Lixiang; Wu, Fengcheng; Nagler, Philipp; Tran, Kha; Ma, Xin; Schüller, Christian; Korn, Tobias; MacDonald, Allan H.; Moody, Galan; Li, Xiaoqin

    2017-06-01

    The emerging field of valleytronics aims to exploit the valley pseudospin of electrons residing near Bloch band extrema as an information carrier. Recent experiments demonstrating optical generation and manipulation of exciton valley coherence (the superposition of electron-hole pairs at opposite valleys) in monolayer transition metal dichalcogenides (TMDs) provide a critical step towards control of this quantum degree of freedom. The charged exciton (trion) in TMDs is an intriguing alternative to the neutral exciton for control of valley pseudospin because of its long spontaneous recombination lifetime, its robust valley polarization, and its coupling to residual electronic spin. Trion valley coherence has however been unexplored due to experimental challenges in accessing it spectroscopically. In this work, we employ ultrafast 2D coherent spectroscopy to resonantly generate and detect trion valley coherence in monolayer MoSe2 demonstrating that it persists for a few-hundred femtoseconds. We conclude that the underlying mechanisms limiting trion valley coherence are fundamentally different from those applicable to exciton valley coherence.

  6. Obtaining the borders of urban areas

    CERN Document Server

    Comin, Cesar Henrique; Costa, Luciano da Fontoura

    2015-01-01

    The access to an ever increasing amount of information in the modern world gave rise to the development of many quantitative indicators about urban regions in the globe. Therefore, there is a growing need for a precise definition of how to delimit urban regions, so as to allow proper respective characterization and modeling. Here we present a straightforward methodology to automatically detect urban region borders. The method is based on the density of street crossings around a single seed point associated to the urban area of interest. We exemplify the potential of the methodology by characterizing the geometry and topology of 21 urban regions obtained from 8 distinct countries. The geometry is studied by employing the lacunarity measurement, which is associated to the regularity of holes contained in a pattern. The topology is analyzed by associating the betweenness centrality of the streets with their respective class, such as motorway or residential, obtained from a database.

  7. Usability in Public Services and Border Control

    Science.gov (United States)

    Pirelli, Giuliano

    The paper starts with a brief overview of the scale of disability and associated challenges and puts them in the context of the public policy on disability. It then analyses the usability challenges in public services and border control, including the issues of accessibility, safety and communication. These need to be addressed in future policy proposals, to provide the best assistance by new technologies to elderly people and people with disabilities, avoiding creating new barriers due to incorrect or incomplete initial conception. With increasing flux of novel security technology in mass transportation systems, and particularly the use of biometric identification in airports, the challenge of usability is recognized. This paper analyses these issues in the context of users with disability in an idealized process of Simplifying Passenger Travel (SPT).

  8. [Crossing borders. The motivation of extreme sportsmen].

    Science.gov (United States)

    Opaschowski, H W

    2005-08-01

    In his article "Crossing borders -- the motivation of extreme sportsmen" the author gets systematically to the bottom of the question of why extreme sportsmen voluntarily take risks and endanger themselves. Within the scope of a representative sampling 217 extreme sportsmen -- from the fields of mountain biking, trekking and free climbing, canoyning, river rafting and deep sea diving, paragliding, parachuting, bungee jumping and survival training -- give information about their personal motives. What fascinates them? The attraction of risk? The search for sensation? Or the drop out of everyday life? And what comes afterwards? Does in the end the whole life become an extreme sport? Fact is: they live extremely, because they want to move beyond well-trodden paths. To escape the boredom of everyday life they are searching for the kick, the thrill, the no-limit experience. It's about calculated risk between altitude flight and deep sea adventure.

  9. The coordination of care across borders

    DEFF Research Database (Denmark)

    Kierkegaard, Patrick

    -savings, improved quality of care, avoidance of unnecessary tests, improved work efficiency, reduced waiting times and improvement in the overall efficiency of the healthcare system. Although benefits exists, healthcare organizations have experienced difficulties attaining them and overall adoption of e...... with implementing a new system, and uncertainty that the technology may actually reduce overall costs. The coordination of care across boundaries presents a plethora of issues that need to be tackled from a policy, legal, practical research perspective. This thesis attempts to address pressing issues...... with a particular focus on the implications health information exchange for the purposes of coordinating care will have on both the patient and healthcare professionals on three levels: international, national and institutional level. The findings of this thesis imply that in order for cross-border health...

  10. Frontiers, territoriality and tensions in bordering spaces

    Directory of Open Access Journals (Sweden)

    María Eugenia Comerci

    2012-01-01

    Full Text Available The expansión of the agricultural frontier in the Argentine pampas implied a re-valuation of "bordering" spaces, which were considered "marginal" by capital. This paper aims at interpreting the socio-territorial impact -from both a material and a symbolic level- being caused by the expansión of the productive, business-profile [agricultural and oil] frontier in the center-west of the province of La Pampa. With the interpretative approach provided by qualitative methodologies, we intend to analyze -in a case study- how these frontier expansión processes altered and re-defined the social arena between the years 2000 and 2010, the social construction of the space and the power relations in Chos Malal

  11. Globalization and Cross-Border Labor Organizing

    Directory of Open Access Journals (Sweden)

    Ralph Armbruster

    2015-08-01

    Full Text Available The globalization of the world economy has opened up new possibilities for cross-border labor organizing. In fact, several U.S. unions are working together with unions from Mexico, Honduras, Guatemala, the Dominican Republic, Japan, South Korea, and many European nations. For example, over the last several years, UNITE (Union of Needletrades, Industrial, and Textile Employees, the AFL-CIO, and the international garment workers trade secretariat have worked directly with maquiladora workers in Honduras and the Dominican Republic. These efforts led to the formation of several labor unions and the first contracts ever negotiated in the maquiladoras in the Dominican Republic. In addition, labor rights and solidarity organizations, like the Campaign for Labor Rights, Witness for Peace, and the US/Guatemala Labor Education Project (US/GLEP, along with many other groups, have also played key roles in the formation of maquiladora unions in Nicaragua and Guatemala.

  12. POSTMODERN EDUCATION: CRITICAL AND BORDER PEDAGOGIES

    Directory of Open Access Journals (Sweden)

    Mustafa Kurt

    2006-12-01

    Full Text Available This article discusses the influence of postmodernism on education and investigates the main effects ofpostmodern philosophy on social sciences. It is clearly stated in the article that the effects of postmodernism cannotonly be limited to art and logically it should have an effect on education as well. This effect, described as thepostmodern educational approach, emphasizes that the rudiments of popular culture should also be incorporated toeducation and therefore to curricula. Postmodern educational approach also accentuates the significance of allowing‘others’ who have never possessed the opportunity to articulate their standpoints and desires to have a say in their owneducation. The concrete reflections of postmodern educational approach can be perceived in Critical and BorderPedagogies theorized by Henry A. Giroux. Critical pedagogy aspires to educate individuals who do not acceptoccurrences as they are and are critical of the knowledge they construct all through their education. Only by this waythese individuals will be able to discover their own voices, improve their civilian consciousness by taking risks, andacquire the ability of staying alive and functioning within social relations, traditions and experiences. Border pedagogyis as well a product of postmodern philosophy. It defends counter-text as opposed to the official ones offered, presentedand imposed to learners. Counter-consciousness represents the critical analysis of how the present reads the past andhow the past informs the present. This practice of course results in the re-evaluation of memories and traditions.Memories are the stories which were forgotten or ignored with the support of preserved traditions. It is thereforeconcluded in the article that postmodern educational approach is the critical examination towards dismissing the mainnarratives and discourses which manipulate and configure the curriculum of schools. It is the struggle exercisedtowards the recognition

  13. Editorial: Human rights at the border

    Directory of Open Access Journals (Sweden)

    Sverre Molland

    2013-11-01

    Full Text Available It is with great honour that I introduce the second issue of the Anti-Trafficking Review (ATR. The first issue received an overwhelming response and has placed the journal at the forefront of rigorous analysis and debate relating to human trafficking and human rights. It raised the topic of accountability in anti-trafficking. This issue hopes to further strengthen the ATR’s position as a global, reputable journal on human trafficking. Strengthening the quality of research, analysis, and reflexivity in the trafficking sector is much needed, and I echo Anne Gallagher’s observation as guest editor of the first issue that standards in anti-trafficking research tend to be less rigorous than in other fields of study. My aim as a guest editor is to contribute to addressing this shortfall by bringing together a set of diverse and insightful articles focussing on the nexus of borders and human rights. It is also my hope that this issue will work towards narrowing the divide between practitioners and academics in anti-trafficking. This is reflected in the varied range of contributors. The last few years have witnessed a significant increase in publishing relating to human trafficking worldwide. However, there is limited measured debate and appraisal of this literature within the anti-trafficking sector. For this reason we have decided to include a book review as a way of highlighting recent major publications. The question of borders, migration control, trafficking and human rights raise contested and controversial questions. The editorial team has attempted to include different perspectives, reflected in the debate section in particular. Needless to say, all papers have been subject to double blind peer review.

  14. Cross-border firing and injury patterns

    Directory of Open Access Journals (Sweden)

    Nital Gupta

    2016-01-01

    Full Text Available Introduction: Cross-border firing are increasingly being common in the modern era. The injuries resulting from these low intensity conflicts are a source of anxiety among treating physicians and their respective governments. The provisions are required to minimise the suffering of the victims viz. Mode of injuries, mortality patterns, adequacy of treatment at pre-hospital and tertiary care hospital and provisions to decrease morbidity and mortality for the people living in these areas. Materials and Methods: A retrospective study was conducted in GMCH, Jammu who suffered injuries due to cross border firing in the month of October, 2014. 68 patients were reported in the causality wing. All the patients were referred from level 2 trauma centre. There were 51 males and 17 females out of which 5 were children. The cause of injury, involvement of organ system, cause of mortality and morbidity and loopholes in prehospital management were identified. Results: Sharpnel were the most common cause of injury followed by indirect trauma. The common cause of mortality was abdominal and thoracic injuries. There were 4 deaths at hospital 2 of which were brought dead and 2 died during the course of treatment. There were twenty patients with extremity injuries, fourteen with chest trauma, eleven with abdomen including parineal injuries, three with head injuries, eight with ENT injuries, three with eye injuries and nine with splinters in the back out of which two were in the spinal canal. Conclusion: Prehospital stabilisation, early transport, in-transit resuscitation, immediate surgery if required and implementation of triage model and ATLS protocol has been the key to reduce mortality and morbidity.

  15. Cross border reproductive care in six European countries

    DEFF Research Database (Denmark)

    de Mouzon, J; Pennings, G; Ferraretti, A P

    2010-01-01

    The quantity and the reasons for seeking cross border reproductive care are unknown. The present article provides a picture of this activity in six selected European countries receiving patients.......The quantity and the reasons for seeking cross border reproductive care are unknown. The present article provides a picture of this activity in six selected European countries receiving patients....

  16. 77 FR 38076 - U.S. Customs and Border Protection

    Science.gov (United States)

    2012-06-26

    ... SECURITY U.S. Customs and Border Protection Accreditation and Approval of SGS North America, Inc., as a Commercial Gauger and Laboratory AGENCY: U.S. Customs and Border Protection, Department of Homeland Security... petroleum and petroleum products, organic chemicals and vegetable oils for customs purposes, in...

  17. 76 FR 65207 - U.S. Customs and Border Protection

    Science.gov (United States)

    2011-10-20

    ... SECURITY U.S. Customs and Border Protection Notice of Cancellation of Customs Broker Licenses AGENCY: U.S. Customs and Border Protection, U.S. Department of Homeland Security. ACTION: General notice. SUMMARY: Pursuant to section 641 of the Tariff Act of 1930, as amended, (19 U.S.C. 1641) and the U.S. Customs...

  18. 15 CFR 30.17 - Customs and Border Protection regulations.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Customs and Border Protection regulations. 30.17 Section 30.17 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade... Requirements § 30.17 Customs and Border Protection regulations. Refer to the DHS's CBP regulations, 19 CFR...

  19. 77 FR 59206 - U.S. Customs and Border Protection

    Science.gov (United States)

    2012-09-26

    ... SECURITY U.S. Customs and Border Protection Agency Information Collection Activities: Foreign Assembler's Declaration AGENCY: U.S. Customs and Border Protection (CBP), Department of Homeland Security. ACTION: 60-day... November 26, 2012, to be assured of consideration. ADDRESSES: Direct all written comments to U.S....

  20. 75 FR 70937 - U.S. Customs and Border Protection

    Science.gov (United States)

    2010-11-19

    ... SECURITY U.S. Customs and Border Protection Accreditation and Approval of Robinson International (USA) Inc., as a Commercial Gauger and Laboratory AGENCY: U.S. Customs and Border Protection, Department of... been approved to gauge and accredited to test petroleum and petroleum products for customs purposes,...

  1. Cross-border mobility, unfamiliarity and development policy in Europe

    NARCIS (Netherlands)

    Spierings, B.; Velde, M. van der

    2013-01-01

    In this special issue, we seek to explore experiences, performances and effects of both “unfamiliarity” and “familiarity” across a diversity of inner and outer borders of the European Union. In EU integration discourse, cross-border unfamiliarity is usually considered to obstruct international mobil

  2. On the assessment of cross-border regions' development potential

    Directory of Open Access Journals (Sweden)

    Bilchak M. V.

    2011-01-01

    Full Text Available This article sets out to assess the potential of cross-border region development on the basis of theoretical and methodological materials. The study examines the Kaliningrad region and Warmian-Masurian Voivodeship. The article is focused on the modelling of interindustry balance and export/import functions of border territories.

  3. The Maritime and Border Regions of Western Europe.

    Science.gov (United States)

    Corner, Trevor

    1988-01-01

    Discusses the diversity of languages in Western Europe and the peripheralization of maritime and border languages through isolation, domination by other languages, and fragmentation of the culture. Discusses minority rights issues, suggesting rise in bilingual education implies border-language revival. 5 tables, 27 references. (TES)

  4. Cross-border cooperation in the Fehmarn Belt Region

    DEFF Research Database (Denmark)

    Guasco, Clement Nicolas

    Ph.d. thesis on cross-border cooperation around transport planning and regional development. Successfully defended on December 1st, 2015. Executive summary available on page V of the document......Ph.d. thesis on cross-border cooperation around transport planning and regional development. Successfully defended on December 1st, 2015. Executive summary available on page V of the document...

  5. 76 FR 41993 - Customs and Border Protection Officer Retirement

    Science.gov (United States)

    2011-07-18

    ... elements of those structures include: (1) A maximum entry age (to maintain a young and vigorous workforce... reference to a Federal occupational series--the Customs and Border Protection job series (GS- 1895). Two... border protection officer will be determined by looking back at the individual's employment history...

  6. The Green Room: How Border Walls Affect Wildlife

    Science.gov (United States)

    Beckrich, Amanda

    2017-01-01

    The proposed wall along the U.S.-Mexico border would significantly affect wildlife. Most animals cannot get past walls that are hundreds of miles long and many meters tall. Some species along parts of the border where a wall already exists, such as jaguars and ocelots, suffer from dwindling populations and difficulty finding mates. This column…

  7. Precision Mapping of Valley Networks in Margaritifer Sinus, Mars

    Science.gov (United States)

    Stepinski, T. F.; Luo, W.; Qi, Y.

    2007-03-01

    Valley networks in Margaritifer Sinus quadrangle are mapped using a computer algorithm. The new map reveals wider existence of valleys than has been inferred from older maps. This suggests runoff as the primary mechanism for origin of the valleys.

  8. Cross-Border Brides: Vietnamese Wives, Chinese Husbands in a Border-Area Fishing Village

    Directory of Open Access Journals (Sweden)

    Nguyễn Thị Phương Châm

    2014-06-01

    Full Text Available This article traces the lives of a group of Vietnamese women driven by poverty and loss of marriageability to cross the border into China to marry men from the fishing village of Wanwei. Wanwei’s location, only 25 kilometers from the border with Vietnam, enables these women to make fairly regular trips back to their native villages to visit their birth families. Yet, despite the fact that they now live in a designated Jing (ethnic Vietnamese village, where a significant proportion of the population shares their ethnicity, their illegal residential status and recent arrival excludes them from the community of villagers who claim descent from Vietnamese immigrants in the sixteenth century. Despite the hardships these women face as a result of continuing poverty, lack of emotional intimacy in their marriages, and marginal social status, few see themselves as victims of human trafficking. Instead, most take pride in their agency and achievements.

  9. Cross-border innovation cooperation: Partner selection, national borders and knowledge bases

    DEFF Research Database (Denmark)

    Hjaltadóttir, Rannveig Edda; Makkonen, Teemu; Sørensen, Nils Karl

    2017-01-01

    Finding a suitable partner is paramount for the success of innovation cooperation. Thus, this paper sets out to analyse the determinants of cross-border innovation cooperation in Denmark by focusing on partner selection. The aim of the article is to investigate determinants of partner selection...... by taking the location of the partners into account. In particular, the discussion is tied to the notion of varying knowledge bases firms utilize in their innovation creation processes. Firm level data from the 2010 Community Innovation Survey in Denmark was utilized to analyse cross-border innovation...... cooperation patterns of Danish firms focusing on their choices of foreign innovation partners. The results indicate that firm size and research and development (R&D) intensity have a positive effect on firm’s propensity to cooperate on innovation and that having R&D activities abroad as well as high level...

  10. Work through the valley: plan.

    Science.gov (United States)

    Jones, Loretta; Meade, Barbara; Koegel, Paul; Lucas-Wright, Aziza; Young-Brinn, Angela; Terry, Chrystene; Norris, Keith

    2009-01-01

    This first of three chapters on the Valley stage, or main work of a Community-Partnered Participatory Research (CPPR) initiative, concerns the planning phase of the work cycle. The main goal of this phase is to develop an action plan, which clarifies the goals, methods, responsible individuals, and timeline for doing the work. Further, this chapter reviews approaches, such as creativity and use of humor, that help level the playing field and assure community co-leadership with academic partners in developing effective action plans.

  11. Border Security Agency Structure: A Hindrance to Demonstrating Border Security Success

    Science.gov (United States)

    2013-12-01

    Citizenship and Immigration Services USCS United States Customs Service VSP Visa Security Program WMD Weapons of Mass Destruction WTC World Trade Center... destruction ” was not part of the border security agencies’ mission lexicon before the passage of the HSA. 2. The U.S. Customs Service In 1992, the GAO...laws. Focus on terrorists and weapons of mass destruction were the province of the FBI and the Bureau of Alcohol, Tobacco and Firearms. INS and the

  12. Borders, Corridors, and Economics: The Keys to Stopping Cross Border Violence

    Science.gov (United States)

    2013-04-22

    aspect of their organization. According to the book La Familia Drug Cartel: Implications for U.S. Mexican Security, La Familia came onto the scene in...La Familia recruits out of over a dozen rehabilitation clinics they operate. Once a potential recruit is clean they begin their training. The...Rep. Connie. Enhanced Border Security Act. Washington D.C., 2011. Grayson, George W. La Familia Drug Cartel: Implications For U.S.-Mexican Security

  13. Border Jumping: Strategic and Operational Considerations in Planning Cross-Border Raids Against Insurgent Sanctuaries

    Science.gov (United States)

    2013-06-01

    military and cultural influence. Within month, the agreements rang hollow, as both nations lent support to the FLN.107 The French capture of Ben...Africa in Namibia, 56. 142 Truth and Reconciliation Commission, South Africa Report, 45. Kelly Bell, “Operation Savannah: Task Force Zulu and the...focused cross-border raids. Indigenous intelligence networks can also help preserve tactical forces by sharing cultural information that can affect the

  14. Rethinking Borders in Japan: Internal, Cultural, and Geopolitical

    Directory of Open Access Journals (Sweden)

    Ingyu Oh

    2016-03-01

    Full Text Available Christopher Bondy. Voice, Silence, and Self: Negotiations of Buraku Identity in Contemporary Japan. Cambridge, MA: Harvard University Asia Center, 2015. 184 pp. $40 (cloth. Koichi Iwabuchi. Resilient Borders and Cultural Diversity. Lanham, MD: Lexington Books, 2015. 137 pp. $75 (cloth/e-book. Akihiro Iwashita. Japan’s Border Issues: Pitfalls and Prospects. New York: Routledge, 2016. 144 pp. $160 (cloth. The books reviewed here address three different borders in present-day Japanese society: internal, cultural, and geopolitical. It is rare for three different authors to concurrently publish monographs on Japanese borders from three different angles. This may be a sign of increasing consciousness within Japan on the issues of diversity, multiethnicity, old and new forms of discrimination, and continuing border conflicts with neighboring countries...

  15. Does smoke cross the border? Cigarette tax avoidance in France.

    Science.gov (United States)

    Ben Lakhdar, Christian; Vaillant, Nicolas Gérard; Wolff, François-Charles

    2016-12-01

    This paper examines the impact on cigarette sales of the successive increases in cigarette prices in France from 2002 to 2004. Since the price differential between France and neighboring countries increased over the period in question, cross-border purchases became more financially attractive for smokers living near borders. Results from difference-in-differences estimates indicate that the decrease in cigarette sales observed in French border departments was around 20 % higher from 2004 to 2007 compared to non-border departments. The loss of fiscal revenue due to cross-border shopping since the tax increase amounts to 2 billion euros over the period 2002-2007. Our findings highlight the need for improved coordination of policies aimed at reducing tobacco consumption across European Union countries.

  16. Parhelic-like circle from light scattering in Plateau borders

    Energy Technology Data Exchange (ETDEWEB)

    Tufaile, A., E-mail: tufaile@usp.br; Tufaile, A.P.B.

    2015-03-06

    We are reporting a new simple optical element to generate halos. We have observed interesting patterns of light scattering in Plateau borders in foams. In analogy to the atmospheric phenomena known as parhelic circle, sun dogs, and sun pillars, we have named the features of the patterns observed as parlaseric circle, laser dogs, and laser pillars. The triangular symmetry of the Plateau borders is analogous to the hexagonal symmetry of ice crystals which produce these atmospheric phenomena. Working with one Plateau border at a time, we have observed wave optics phenomena that are not perceived in the atmospheric phenomena, such as diffraction and interference. - Highlights: • We obtained halo formation from light scattering in a Plateau border using an experiment. • We explained halo formation using geometrical theory of diffraction. • An optical element based on a Plateau border is proposed. • We compared some aspects of the parhelic circle with the parlaseric circle.

  17. School Social Workers in Texas: A Comparative Demographic Analysis of the Texas-Mexico Border and Non-Border Regions

    Science.gov (United States)

    Garza, Cecilia; Landeck, Michael

    2007-01-01

    This study examines the role of school social workers as potential agents of change in the educational system, with a special focus on their major demographic characteristics in Texas and along the Mexico border region. The border region of the state has chronic poverty and limited educational attainment levels and demonstrates a need for…

  18. The Humanitarian Drone and the Borders: Unveiling the Rationales Underlying the Deployment of Drones in Border Surveillance

    NARCIS (Netherlands)

    Marin, Luisa; Custers, Bart

    2016-01-01

    In these days economic and political pressures push for the deployment of drones’ technology in civil and commercial domains. This chapter focuses in particular on the deployment of drones in the context of border surveillance. Border surveillance is a shared competence between the European Union, t

  19. School Social Workers in Texas: A Comparative Demographic Analysis of the Texas-Mexico Border and Non-Border Regions

    Science.gov (United States)

    Garza, Cecilia; Landeck, Michael

    2007-01-01

    This study examines the role of school social workers as potential agents of change in the educational system, with a special focus on their major demographic characteristics in Texas and along the Mexico border region. The border region of the state has chronic poverty and limited educational attainment levels and demonstrates a need for…

  20. Cooperative Monitoring Center Occasional Paper/7: A Generic Model for Cooperative Border Security

    Energy Technology Data Exchange (ETDEWEB)

    Netzer, Colonel Gideon

    1999-03-01

    This paper presents a generic model for dealing with security problems along borders between countries. It presents descriptions and characteristics of various borders and identifies the threats to border security, while emphasizing cooperative monitoring solutions.

  1. Vernal Pool Distribution - Central Valley, 2005 [ds650

    Data.gov (United States)

    California Department of Resources — "Great Valley Vernal Pool Distribution", originally mapped by Bob Holland, 2005. This dataset contains vernal pool areas mapped over Califorina's Central Valley,...

  2. Rift Valley fever outbreak, southern Mauritania, 2012.

    Science.gov (United States)

    Sow, Abdourahmane; Faye, Ousmane; Ba, Yamar; Ba, Hampathé; Diallo, Diawo; Faye, Oumar; Loucoubar, Cheikh; Boushab, Mohamed; Barry, Yahya; Diallo, Mawlouth; Sall, Amadou Alpha

    2014-02-01

    After a period of heavy rainfall, an outbreak of Rift Valley fever occurred in southern Mauritania during September-November 2012. A total of 41 human cases were confirmed, including 13 deaths, and 12 Rift Valley fever virus strains were isolated. Moudjeria and Temchecket Departments were the most affected areas.

  3. Valley Fever (Coccidioidomycosis) Risk and Prevention

    Science.gov (United States)

    ... fungal spores. The following are some common-sense methods that may be helpful to avoid getting Valley fever. It’s important to know that although these steps are recommended, they haven’t been proven to prevent Valley fever. ... information about respirators. Stay inside during dust storms and ...

  4. Enjoy Samba Carnival in Happy Valley

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    On July3,the Yanjing Beer 2009 Beijing Happy Valley Mayan Carnival was grandly opened.The carnival will last for almost two months until August 30.With support from Yanjing Beer,Happy Valley is able to provide an authentic Brazilian festival including hot music and dancing,

  5. Valley Pearl’ table grape

    Science.gov (United States)

    Valley Pearl’ is an early to mid-season, white seedless table grape (Vitis vinifera L.) suitable for commercial table grape production where V. vinifera can be grown. Significant characteristics of ‘Valley Pearl’ are its high and consistent fruit production on spur pruned vines and large round berr...

  6. Inverting the Telescope on Borders that Matter: Conversations in Café Europa

    DEFF Research Database (Denmark)

    Andersen, Dorte Jagetic; Kramsch, Olivier Thomas; Sandberg, Marie

    2015-01-01

    of geopolitical as well as everyday life border practices find expression and take place. Inside this tension of multiple realities and politics, border theory is challenged and charged. It is the aim of the article to invite a furthering of ontological border politics in and across such conversations on borders...... that matter. Keywords: border studies, border theory, new comparativism, ontological politics, multiplicity, extra-territoriality/deterritorialisation...

  7. A hydrogeologic map of the Death Valley region, Nevada, and California, developed using GIS techniques

    Energy Technology Data Exchange (ETDEWEB)

    Faunt, C.C.; D`Agnese, F.A.; Turner, A.K.

    1997-12-31

    In support of Yucca Mountain site characterization studies, a hydrogeologic framework was developed, and a hydrogeologic map was constructed for the Death Valley region. The region, covering approximately 100,000 km{sup 2} along the Nevada-California border near Las Vegas, is characterized by isolated mountain ranges juxtaposed against broad, alluvium-filled valleys. Geologic conditions are typical of the Basin and Range Province; a variety of sedimentary and igneous intrusive and extrusive rocks have been subjected to both compressional and extensional deformation. The regional ground-water flow system can best be described as a series of connected intermontane basins in which ground-water flow occurs in basin-fill deposits, carbonate rocks, clastic rocks, and volcanic rocks. Previous investigations have developed more site-specific hydrogeologic relationships; however, few have described all the lithologies within the Death Valley regional ground-water flow system. Information required to characterize the hydrogeologic units in the region was obtained from regional geologic maps and reports. Map data were digitized from regional geologic maps and combined into a composite map using a geographic information system. This map was simplified to show 10 laterally extensive hydrogeologic units with distinct hydrologic properties. The hydraulic conductivity values for the hydrogeologic units range over 15 orders of magnitude due to the variability in burial depth and degree of fracturing.

  8. Climatic factors affecting annual maize yields in the valley of Oaxaca, Mexico

    Science.gov (United States)

    Dilley, Maxx

    1997-11-01

    Locally measured climatic variables, such as temperature and precipitation, clearly affect agriculture, particularly in semi-arid regions. Some climate/agriculture applications, however, do better to focus on meso- and large-scale atmospheric and oceanic circulatory influences on the location of interest. In the Valley of Oaxaca in the highlands of southern Mexico for example, rain-fed maize yields are as sensitive to interannual variations in the Southern Oscillation Index (SOI) and a synoptic index of summer 850 hPa-level temperatures in the Mexico-USA border region as they are to locally measured precipitation, a variable to which yields are also strongly related. From 1978 to 1990, August precipitation explains 62 per cent of the variation in yields on the area planted in rain-fed maize in the Valley of Oaxaca, a region highly dependent on that crop. An index derived from 850 hPa-level temperatures and the annual average value of the SOI are comparable, explaining 48 per cent and 68 per cent of maize-yield variation respectively. This suggests that useful information for agricultural decision-making in the Valley of Oaxaca can be obtained by monitoring ENSO and the development of large-scale circulatory patterns. Unlike local observations, these larger scale phenomena may provide advance warning of precipitation conditions during the agricultural season upon which so many people's livelihoods in the region depend.

  9. Pink bollworm moth (Lepidoptera: Gelechiidae) catches in the Imperial Valley, California from 1989 to 2003

    Institute of Scientific and Technical Information of China (English)

    CHANG-CHI CHU; ERIC T.NATWICK; RAUL LE(O)N L(O)PEZ; JOLENE R.DESSERT; THOMAS J.HENNEBERRY

    2006-01-01

    We examined the patterns of male pink bollworm (PBW),Pectinophora gossypiella (Saunders),moth catches in gossyplure-baited traps over a 15-year period from 1989 to 2003 in the Imperial Valley,California,USA. Monitoring was conducted during periods when different pink bollworm areawide control strategies were being used. Numbers of male pink bollworm moths caught in gossyplure-baited traps progressively decreased each year from 1990 to 1994 during short-season cotton production. High numbers of male moths caught in traps from 1995 to 1997 may have been related to moth migrations from the large cotton acreages grown in the Mexicali Valley bordering the Imperial Valley. Transgenic Bollgard(R) (Bt) cotton was planted in 3% of the cotton area in 1996 and thereafter in 80%-94% of the cotton area from 1997 to 2003. Pink bollworm moth trap catches were significantly lower from 1998 to 2003 than catches in 1995 to 1997,except for 1999. The trapping results suggested that Bt cotton had significant input on reduction of pink bollworm populations,confirming results of other investigators and providing additional documentation on the benefits of the Bt cotton culture.

  10. An open mind to closed borders

    Science.gov (United States)

    Fallet, Ulrike; Lefeber, Bob

    2017-04-01

    One aspect of "Science in tomorrow's classroom" is teaching geography students the basic skills and knowledge to play an active role in society as citizens. Topics that frame the development of good citizenship are wide-ranged and include climate change, migration and integration as well as democracy and identity. Often these kinds of topics do not allow for right or wrong answers or classroom lectures; it is more important to encourage students to find and discuss arguments with which to underpin their opinion. In this way, civic education is very suitable for active learning. Active learning is described as a method of learning in which students are actively involved in the learning process through (group) discussion, experiments or games. By doing so, students are stimulated to engage in higher-order thinking tasks such as analysis, synthesis, and evaluation, which are inherent to becoming responsible, reflective and critical citizens as well as (future) scientists. It has also been shown that the use of active learning methods significantly increased the number of meaningful geographical relationships that students give in tests (Karkdijk, 2012). I, therefore, propose to use active learning to approach civic education in the classroom. Specifically, I used a "mystery" to engage students in active learning on the highly polarizing subject of migration. A mystery (Leat, 1990) is a didactic method that uses short bits of information to solve an intriguing question. A current polarizing subject in society and in the classroom is the migration from Northern Africa and the Middle East to Europe and the increasing number of terrorist attacks by individuals who have radicalised before, during or after their journey over the Mediterranean. In class, students were asked to solve this migration mystery: "Could the terrorist attack in Berlin have been stopped by closing the borders of the Mediterranean countries to migrants?" In order to solve this mystery and to find an

  11. Environmental exposure of road borders to zinc

    Energy Technology Data Exchange (ETDEWEB)

    Blok, J. [Royal Haskoning, P.O. Box 151, 6500 Ad Nijmegen (Netherlands)]. E-mail: Han.Blok@royalhaskoning.com

    2005-09-15

    The emissions of zinc along roads originating from tyre wear, corrosion of safety fence and other traffic-related sources have been quantified and validated by measured long-term loads in road run-off and airborne solids (drift) for 29 published case studies. The distribution pattern over the road border at various distances from the edge of the paved surface is assessed on the basis of 38 published case studies with measured concentrations in soil. For the impact assessment, the road border is differentiated into a zone that is part of the 'technosphere' and the 'target zone' beyond that technosphere that can be considered as part of the receiving environment. The 'technosphere' of the road includes the central reservation, the hard and the soft shoulder or, if one or both shoulders are not present, the so-called obstacle 'free zone' that is defined by road engineers. Pollution within the technosphere may require appropriate management of solid disposal and isolation from groundwater to prevent further distribution of pollutants to the environment. In the target zone along regional roads, the zinc load is about 4 mg/m{sup 2} year and this is of the same order of magnitude as that of atmospheric deposition in areas beyond the influence of roads (background). In the target zone along highways, the zinc load is increased in comparison to the background deposition. The average load of about 38 mg/m{sup 2} year is similar to that in fertilised agricultural land. Because most of the emitted zinc stays in the technosphere, the total amount entering this target zone along highways is limited. From the 140 tons of zinc per year that is released from tyre wear in The Netherlands, 64 tons is emitted in the urban area, 6.5 tons reaches to the target zones of all roads and only 1.1 tons of zinc will enter the target zone along highways. This amount will be further decreased by the application of porous asphalt in the near future. The

  12. Transforming the "Valley of Death" into a "Valley of Opportunity"

    Science.gov (United States)

    Jedlovec, Gary J.; Merceret, Francis J.; O'Brien, T. P.; Roeder, William P.; Huddleston, Lisa L.; Bauman, William H., III

    2014-01-01

    Transitioning technology from research to operations (23 R2O) is difficult. The problem's importance is exemplified in the literature and in every failed attempt to do so. Although the R2O gap is often called the "valley of death", a recent a Space Weather editorial called it a "Valley of Opportunity". There are significant opportunities for space weather organizations to learn from the terrestrial experience. Dedicated R2O organizations like those of the various NOAA testbeds and collaborative "proving ground" projects take common approaches to improving terrestrial weather forecasting through the early transition of research capabilities into the operational environment. Here we present experience-proven principles for the establishment and operation of similar space weather organizations, public or private. These principles were developed and currently being demonstrated by NASA at the Applied Meteorology Unit (AMU) and the Short-term Prediction Research and Transition (SPoRT) Center. The AMU was established in 1991 jointly by NASA, the U.S. Air Force (USAF) and the National Weather Service (NWS) to provide tools and techniques for improving weather support to the Space Shuttle Program (Madura et al., 2011). The primary customers were the USAF 45th Weather Squadron (45 WS) and the NWS Spaceflight Meteorology Group (SMG who provided the weather observing and forecast support for Shuttle operations). SPoRT was established in 2002 to transition NASA satellite and remote-sensing technology to the NWS. The continuing success of these organizations suggests the common principles guiding them may be valuable for similar endeavors in the space weather arena.

  13. Rates and predictors of DUI among U.S.-Mexico border and non-border Mexican Americans.

    Science.gov (United States)

    Caetano, Raul; Vaeth, Patrice A C; Mills, Britain A

    2013-10-01

    This paper examines driving under the influence (DUI) arrests and other related factors among Mexican Americans living in U.S.-Mexico border and non-border areas. Respondents in the non-border areas (primarily Houston and Los Angeles) constitute a multistage probability sample (N=1288) of these areas, interviewed as part of the 2006 Hispanic Americans Baseline Alcohol Survey (HABLAS). Respondents in the border area (N=1307) were interviewed between March 2009 and July 2010 and constitute a household probability sample of Mexican Americans living on the border. In both surveys, data were collected during computer assisted interviews conducted in respondents' homes. The HABLAS and the border sample response rates were 76% and 67%, respectively. Border or non-border residential location was not associated with self-reported DUI, 12 month DUI arrest, or lifetime DUI arrest. An increase in consumption of 5 drinks per week was associated with an 18% increase in the chance of self-reporting DUI and an 18% increase in the probability of a lifetime DUI arrest. Binge drinkers were more likely to self-report a DUI event (OR=2.85, 95% CI=1.61-5.03; pDUI arrest (OR=2.81; 95% CI=1.43-5.53, pDUI as a major problem affecting Hispanics. However, while most correctly identified the legal blood alcohol content to drive in their state as .08 g/dl or lower, approximately one third of individuals were unaware of the legal limit. Compared to their non-border counterparts, border men were more likely to identify a bar/tavern/club and border women were more likely to identify a friend or relative's home as the places of last drink before the most recent DUI trip originated. In conclusion, border and non-border Mexican Americans are not different regarding DUI rates. These rates are high in both groups, especially among men. Intervention strategies to decrease DUI should be implemented not only in drinking establishments but also with families.

  14. Satisfaction in border tourism: An analysis with structural equations

    Directory of Open Access Journals (Sweden)

    Juan Antonio Jimber del Río

    2017-05-01

    Full Text Available Border tourism is the temporary displacement of people to the dividing line between two countries contiguous areas. This activity promotes the economic development of these geographical regions. The aim of this research is to analyze visitors from the Dominican Republic and Haiti border. We propose the results of an empirical study with structural equations that show correlations between the attitude factor towards the border tourism, the value factors perceived by the tourist, satisfaction and loyalty of the visitor in the destination place.

  15. Social and Symbolic Capital in Border Region Clusters

    DEFF Research Database (Denmark)

    Gretzinger, Susanne; Royer, Susanne

    2012-01-01

    to a specific industry sector. The actors have relationships characterised by interdependencies of different strength and quality that define the boundaries. Empirically this contribution is sticking to a firm cluster in the Danish - German border region in Southern Jutland/Danmark. We found global players...... with a high sensitivity regarding the importance of social capital in the process of value creation. Managers on the firm- as well as on the web-level are aware of the potential, but the border between the countries is by the same one border of the cluster as an value adding unit....

  16. New lower bounds for the border rank of matrix multiplication

    OpenAIRE

    Landsberg, J. M.; Ottaviani, Giorgio

    2011-01-01

    The border rank of the matrix multiplication operator for n by n matrices is a standard measure of its complexity. Using techniques from algebraic geometry and representation theory, we show the border rank is at least 2n^2-n. Our bounds are better than the previous lower bound (due to Lickteig in 1985) of 3/2 n^2+ n/2 -1 for all n>2. The bounds are obtained by finding new equations that bilinear maps of small border rank must satisfy, i.e., new equations for secant varieties of triple Segre ...

  17. Red-Hot Sino-Russian Border Trade

    Institute of Scientific and Technical Information of China (English)

    1998-01-01

    IN the late 1990s, the Sino-Russian border in northeastern China which had been so silent for many years got busy in a hurry. In the border city of Suifenhe, with a population of only 40,000, and in Dongning County, with its population of 220,000, trains and vehicles drive by on the rails and the road day and night. The annual volume of goods crossing the border amounts to more than 6.5 million tons and the annual number of passengers passing through exceeds 2 million persons. Suifenhe and Dongning now rank first

  18. Woolfian border poetics and contemporary circadian novels

    Directory of Open Access Journals (Sweden)

    Anka Ryall

    2014-07-01

    Full Text Available Virginia Woolf’s circadian novel Mrs Dalloway (1925 has inspired many successors, some of them important works in their own right. Although few of these novels are as explicitly linked to Mrs Dalloway as Michael Cunningham’s The Hours (1998, more recent novels such as Ian McEwan’s Saturday (2005 and Gail Jones’ Five Bells (2011 clearly pay homage to Woolf’s use of the one-day format to reveal whole lives and show how those individual private lives are entangled in history. The essay highlights one particular aspect of these three works, their imaginative and often transformative reworking of elements of Woolfian border poetics, particularly the predominance in Mrs Dalloway of boundary tropes – windows, doors, thresholds – that create a sense of synchronicity between present and past. Adapting Woolf’s boundary tropes to representations of contemporary realities, all three novels in different ways suggest how the present is deepened ”when backed by the past”, as Woolf puts it her memoirs; that is, when the present is not only informed by a remembered past but experienced in terms of both re-enactment and renewal, continuity and change.

  19. Petrology of the Upper Border Series of the Skaergaard Intrusion

    Science.gov (United States)

    Salmonsen, L.; Tegner, C.; Jakobsen, J. K.

    2009-12-01

    The Upper Border Series crystallized downwards from the roof of the Skaergaard magma chamber. It met with the Layered Series that crystallized upwards from the floor in the Sandwich Horizon that contains the last and most evolved rocks of the intrusion. Previous investigations of the Upper Border Series (Naslund, 1984) have shown that the compositional trends of plagioclase, olivine and pyroxene largely mirror those of the Layered Series. At the same time it was argued that the crystallization sequence in Upper Border Series differed from the Layered Series in that apatite precipitated before magnetite that, in turn, appeared before Ca-rich pyroxene. From the existing data the magma from which the Upper Border Series crystallized was inferred to be enriched in SiO2, K2O, P2O5 and H2O relative to the magma in the lower parts of the intrusion. This has lead to the conception that the Upper Border Series crystallized from a chemically different magma. Here we present new petrography, mineralogy and bulk compositions for samples collected in three profiles through the Upper Border Series (Kilen, Hammerpas and Brødretoppen transects). Although euhedral apatite is present throughout most of the Upper Border Series, we interpret a marked increase in modal apatite late in the crystallization sequence as marking its first appearance on the liquidus at the crystallization front. The plagioclase An% at this level in the Upper Border Series is ˜40 and is identical with plagioclase An% at the level of apatite-in in the Layered Series. Similarly, we find that the plagioclase An% at the onset of FeTi-oxide and sulphide precipitation in the Upper Border Series (52 and 47, respectively) and Layered Series are alike. Finally, we interpret abundant augite in Upper Border Series rocks before magnetite-in as a cumulus phase. We therefore conclude that the crystallization sequences of the two series are identical. The new bulk rock data reveal that the Upper Border Series and the

  20. Automatic mapping of valley networks on Mars

    Science.gov (United States)

    Molloy, I.; Stepinski, T. F.

    2007-06-01

    Martian valley networks bear some resemblance to terrestrial drainage systems, but their precise origin remains an active research topic. A limited number of valley networks have been manually mapped from images, but the vast majority remains unmapped because standard drainage mapping algorithms are inapplicable to valleys that are poorly organized and lack spatial integration. In this paper, we present a novel drainage delineation algorithm specially designed for mapping the valley networks from digital elevation data. It first identifies landforms characterized by convex tangential curvature, and then uses a series of image processing operations to separate valleys from other features having a convex form. The final map is produced by reconnecting all valley segments along drainage directions. Eight test sites on Mars are selected and manually mapped for valley networks. The algorithm is applied to the test sites and delineated networks are compared to mapped networks using a series of quantitative quality factors. We have found a good agreement between delineated and mapped networks. In the process of comparing manual and delineated networks some shortcomings of manual mapping became apparent. We argue that delineated networks are indeed of better quality than the networks manually mapped from images. Although the algorithm has been developed to study Martian surface, it may also be relevant to terrestrial geomorphology.

  1. Cross-border shopping and tourism destination marketing: The case of Southern Jutland, Denmark

    DEFF Research Database (Denmark)

    Makkonen, Teemu

    2016-01-01

    This article addresses the economic impact that cross-border shopping has on the local tourism industry and the ways that cross-border shopping is taken advantage of in tourism destination marketing. Southern Jutland–situated in Denmark just north of the German border, where border shops situated......-border shopping into tourism destination marketing strategies. The results have wider relevance for other border regions.......This article addresses the economic impact that cross-border shopping has on the local tourism industry and the ways that cross-border shopping is taken advantage of in tourism destination marketing. Southern Jutland–situated in Denmark just north of the German border, where border shops situated...... just south of the same border enable Danes to capitalize on the lower value added tax levels in Germany–is utilized as an illustrative case example. The data was collected by analysing the relevant tourism destination marketing material and via interviews with local destination marketing organizations...

  2. Visible Effects of Invisible Hidden Valley Radiation

    CERN Document Server

    Carloni, Lisa

    2010-01-01

    Assuming there is a new gauge group in a Hidden Valley, and a new type of radiation, can we observe it through its effect on the kinematic distributions of recoiling visible particles? Specifically, what are the collider signatures of radiation in a hidden sector? We address these questions using a generic SU(N)-like Hidden Valley model that we implement in Pythia. We find that in both the e+e- and the LHC cases the kinematic distributions of the visible particles can be significantly affected by the valley radiation. Without a proper understanding of such effects, inferred masses of "communicators" and of invisible particles can be substantially off.

  3. Shaping the Victim: Borders, security, and human trafficking in Albania

    Directory of Open Access Journals (Sweden)

    James Campbell

    2013-11-01

    Full Text Available Borders are productive sites where knowledge is gathered and migrant populations are formed. The knowledge gathered from victims of trafficking reinforces a victim narrative that represents a perceived threat to society by highlighting violence, criminality, coercion, and naivety. Using Albania as a case in point, the article looks at trafficked people and the narratives of victimhood that surround them. In the case of trafficked people, the border projected out towards other states produces a discursively defined victim of trafficking. When projected back within the national territory, the border essentially produces a criminalised sex worker. To argue this point, the article discusses the role victims of trafficking play in the EU and looks at how international norms espoused by the OSCE and IOM have prepped the Albanian border for EU ascension and created the means for governable populations within Albania.

  4. Integrated control of the South African border environment

    CSIR Research Space (South Africa)

    Taute, BJE

    2007-03-01

    Full Text Available security, trade and tourism. Control of the border environment is inherently a multi-departmental responsibility, requiring extensive communication and coordination across departments, agencies and provinces, and covering the whole of the South African...

  5. Border Detection of Common Carotid Artery Using Hough Transform

    Science.gov (United States)

    Koya, Yoshiharu; Nagahara, Yoshihiro

    The arteriosclerosis is on the increase with an aging or change of our living environment. For that reason, diagnosis of the common carotid artery using echocardiogram is doing to take precautions carebropathy. The arteriosclerosis of the common carotid artery is diagnosed using Intima-Media Thickness (IMT) which is obtained from echocardiogram. In order to measure IMT from echocardiogram, it is required to detect a border which is a boundary between vessel tissue layers. The method of border detection requires reproducibility and high accuracy. The conventional methods to detect the border curve depend on differential value of brightness on the common carotid artery. Therefore, we can't extract a good candidate point by influence of a noise. In this paper, we propose the high-accuracy detection method by Hough Transform. About high-accuracy, it realized by attaching importance to high reliable candidate point of border.

  6. Health and Borders across Time and Cultures: Introduction

    Directory of Open Access Journals (Sweden)

    Beatriz Carrillo Garcia

    2011-12-01

    Full Text Available This special issue of Portal brings together papers examining the intersection of health and borders. In this analysis health is understood not only as the absence of illness, but also as knowledge, as a right, and as the pursuit of identity and self-transformation. Similarly, borders here are used as both physical and mental constructs. The special issue represent a multidisciplinary effort that looks at health from a social science perspective through historical, socio-economic, and cultural approaches. It is also concerned with the health inequities across and within national borders, due to economic imperatives, changing technologies and environments. The articles in this special issue explore lessons learned and new ways of understanding health across time and borders, with specific reference to the cases of India, Australia, Hong Kong and China, Pakistan, and Thailand.

  7. The structure of borders in a small world

    CERN Document Server

    Thiemann, C; Grady, D; Brune, R; Brockmann, D

    2010-01-01

    Geographic borders are not only essential for the effective functioning of government, the distribution of administrative responsibilities and the allocation of public resources, they also influence the interregional flow of information, cross-border trade operations, the diffusion of innovation and technology, and the spatial spread of infectious diseases. However, as growing interactions and mobility across long distances, cultural, and political borders continue to amplify the small world effect and effectively decrease the relative importance of local interactions, it is difficult to assess the location and structure of effective borders that may play the most significant role in mobility-driven processes. The paradigm of spatially coherent communities may no longer be a plausible one, and it is unclear what structures emerge from the interplay of interactions and activities across spatial scales. Here we analyse a multi-scale proxy network for human mobility that incorporates travel across a few to a few...

  8. Status of mangroves along the countries bordering the Arabian Sea

    Digital Repository Service at National Institute of Oceanography (India)

    Untawale, A.G.; Wafar, S.; Jagtap, T.G.

    Distribution of mangroves in the countries bordering the Arabian Sea, including Gulf of Oman, Persian Gulf, Gulf of Aden and Red Sea, is reviewed and their present status is discussed. The estimated area of mangrove vegetation is 1140 sq. km...

  9. The European Electricity Market and Cross-Border Transmission

    Directory of Open Access Journals (Sweden)

    M. Adamec

    2008-01-01

    Full Text Available This paper deals with basic characteristics and features of trading in electricity, especially in cross-border trading. First, the most important features of electricity as a commodity are explained, with the consequences for electricity trading. Then characteristics and changes in the electricity market after liberalization are discussed. This liberalization has taken place throughout Europe, and the consequences of this revolutionary change are still visible. The main features of electricity trading are mentioned in general. Then cross-border trade in Europe is discussed in greater detail. In this context the basic principles of the allocation of cross-border transmission capacities are explained.The next part of the paper considers the characteristics of the European electricity market from the trader’s point of view. Liquidity as a very important index is introduced here.Finally the most visible trends in cross-border trade and the most probable future development in this area are presented. 

  10. Measuring cross-border regional integration with composite indicators

    DEFF Research Database (Denmark)

    Makkonen, Teemu

    2016-01-01

    Earlier quantitative studies on cross-border regional integration processes have commonly neglected science, technology and innovation (STI) indicators: even the most notable example of a composite indicator approach to measuring cross-border regional integration, i.e. the Oresund index, lacks...... a sub-category for STI. Consequently, by ignoring cross-border innovation and knowledge flows, the Oresund integration index fails to take into account one of the most important drivers of economic growth in cross-border regions. Therefore, a new composite STI indicator (sub-category) was introduced...... to strengthen the Oresund integration index. This was compiled from patent, publication and collaborative R&D project data. The findings show that this index performs reasonably well in depicting STI integration, while at the same time remaining simple and straightforward enough to be adopted in other cross...

  11. Definig the US-Mexico border as hyperreality

    Directory of Open Access Journals (Sweden)

    Carlos A. Duarte-Herrera

    2002-07-01

    Full Text Available The US-Mexico border has been defined as a periphery, as a transborder social system, and more currently, as a station in transnational circuits. The two first definitions presuppose the strongly criticized concepts of region and cultural area. The third definition shares, along with the other two definitions, the positivist epistemological supposition that the border is a specific entity that can be known and experienced as such by any observer, no matter their social site. This paper is to support the definition of the border as a hyperreality constituted by speeches, practices, and experiences of the different social actors. From this posture, the image of the border as a formal geopolitical division is interpreted as a sustained image and reproduced by government agencies. Likewise, this writing is to support the documentation and promotion of alternative images constructed and reproduced by social actors from different power sites.

  12. Signaling pathways and tissue interactions in neural plate border formation.

    Science.gov (United States)

    Schille, Carolin; Schambony, Alexandra

    2017-01-01

    The neural crest is a transient cell population that gives rise to various cell types of multiple tissues and organs in the vertebrate embryo. Neural crest cells arise from the neural plate border, a region localized at the lateral borders of the prospective neural plate. Temporally and spatially coordinated interaction with the adjacent tissues, the non-neural ectoderm, the neural plate and the prospective dorsolateral mesoderm, is required for neural plate border specification. Signaling molecules, namely BMP, Wnt and FGF ligands and corresponding antagonists are derived from these tissues and interact to induce the expression of neural plate border specific genes. The present mini-review focuses on the current understanding of how the NPB territory is formed and accentuates the need for coordinated interaction of BMP and Wnt signaling pathways and precise tissue communication that are required for the definition of the prospective NC in the competent ectoderm.

  13. Borders in Education and Living- a Case of Trench Warfare.

    Science.gov (United States)

    Hviid, Pernille

    2016-03-01

    In this paper the notion of border will be examined in a cultural life course perspective. I will investigate borders as psycho-cultural constructions created to enable and control meaning-making in the intersection between subjects engagements and concerns and collectively constructed and guiding meanings. An empirical analysis of one boy's life course in and between home, school and a Leisure Time Activity Center in the years 1st to 3rd grade demonstrates a systemic construction of borders involving him, his teachers and his parents and renders the boy to choose between becoming an engaged pupil or a dedicated son. As such, the analysis can illuminate processes of school - home interactions that work opposite of what is intended and become detrimental to children's life. In a cultural life course perspective borders show how life is maintained as meaningful and not only guide the present living but also serve as directional guides into the future.

  14. The Sino-Indian Border: Is Conflict Inevitable?

    Science.gov (United States)

    2013-12-13

    99 viii ACRONYMS ADBI Asian Development Bank Initiative BD Border Defense BRICS Brazil Russia... BRICS ) which is emerging as a strong organization (one of the largest organizations in terms of population, area and trade). China has granted a

  15. Galectin-4 and small intestinal brush border enzymes form clusters

    DEFF Research Database (Denmark)

    Danielsen, E M; van Deurs, B

    1997-01-01

    Detergent-insoluble complexes prepared from pig small intestine are highly enriched in several transmembrane brush border enzymes including aminopeptidase N and sucrase-isomaltase, indicating that they reside in a glycolipid-rich environment in vivo. In the present work galectin-4, an animal lectin...... lacking a N-terminal signal peptide for membrane translocation, was discovered in these complexes as well, and in gradient centrifugation brush border enzymes and galectin-4 formed distinct soluble high molecular weight clusters. Immunoperoxidase cytochemistry and immunogold electron microscopy showed...... by a nonclassical pathway, and the brush border enzymes represent a novel class of natural ligands for a member of the galectin family. Newly synthesized galectin-4 is rapidly "trapped" by association with intracellular structures prior to its apical secretion, but once externalized, association with brush border...

  16. EUROPEAN CROSS-BORDER MERGERS AND ACQUISITIONS- REALITIES AND PERSPECTIVES

    OpenAIRE

    Vancea Mariana

    2011-01-01

    This paper analyses the impact of the economic and financial crisis on merger and acquisition activity in Europe and the latest trends manifested on the cross-border merger and acquisition market involving European companies. Thus, a first objective of this research is to reveal the evolution of the European cross-border merger and acquisition activity in terms of dynamics, volume and structure. Another objective of this research is to reveal the short and medium term perspectives on mergers ...

  17. Health Migration: Crossing Borders for Affordable Health Care

    OpenAIRE

    Jennifer Miller-Thayer

    2010-01-01

    Approximately 45.7 million people in the United States are uninsured and unknown numbers of this population are underinsured, severely limiting their access to medical care. To address this problem, people use innovative strategies to increase their access through cross-border care options. The U.S.-Mexico border provides unique challenges and opportunities for health care in this context. The lower cost of medical and dental procedures and medications in Mexico makes that country an attracti...

  18. Cross-border ties and Arab American mental health.

    Science.gov (United States)

    Samari, Goleen

    2016-04-01

    Due to increasing discrimination and marginalization, Arab Americans are at a greater risk for mental health disorders. Social networks that include ties to the country of origin could help promote mental well-being in the face of discrimination. The role of countries of origin in immigrant mental health receives little attention compared to adjustment in destination contexts. This study addresses this gap by analyzing the relationship between nativity, cross-border ties, and psychological distress and happiness for Arab Americans living in the greater Detroit Metropolitan Area (N = 896). I expect that first generation Arab Americans will have more psychological distress compared to one and half, second, and third generations, and Arab Americans with more cross-border ties will have less psychological distress and more happiness. Data come from the 2003 Detroit Arab American Study, which includes measures of nativity, cross-border ties--attitudes, social ties, media consumption, and community organizations, and the Kessler-10 scale of psychological distress and self-reported happiness. Ordered logistic regression analyses suggest that psychological distress and happiness do not vary much by nativity alone. However, cross-border ties have both adverse and protective effects on psychological distress and happiness. For all generations of Arab Americans, cross-border attitudes and social ties are associated with greater odds of psychological distress and for first generation Arab Americans, media consumption is associated with greater odds of unhappiness. In contrast, for all generations, involvement in cross-border community organizations is associated with less psychological distress and for the third generation, positive cross-border attitudes are associated with higher odds of happiness. These findings show the complex relationship between cross-border ties and psychological distress and happiness for different generations of Arab Americans. Copyright © 2016

  19. Bastion on the Border: Fort Bliss, 1854-1943

    Science.gov (United States)

    1993-01-01

    THE BORDER border. Several smuggling rings even made canvas vests for their runners to wear so they could carry more cartridges per trip. There was...no lack of runners , especially among destitute Mexican refugees eager to earn a few cents per cartridge for carrying ammunition. They knew that if they...Aftermath /99 cavalry found it difficult to maneuver in a maze of irrigation ditches. Accordingly the Villistas were not crushed, but they were completely

  20. Cross-border acquisitions in the global food sector

    OpenAIRE

    Herger, Nils; Kotsogiannis, Christos; McCorriston, Steve

    2017-01-01

    Cross-border acquisitions constitute the main form of foreign direct investment in the world economy, the focus of this paper being to consider the determinants of the location and growth of cross-border acquisitions in the global food sector. The data relates to over 2,000 international acquisitions in the food sector from 45 source to 46 host countries. The results highlight the importance of market size, relative costs and stock market growth as important determinants. We also report diffe...

  1. SSL Demonstration: Area Lighting, Yuma Sector Border Patrol Area, AZ

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-05-28

    Along the Yuma Sector Border Patrol Area in Yuma, Arizona, the GATEWAY program conducted a trial demonstration in which the incumbent quartz metal halide area lighting was replaced with LED at three pole locations at the Yuma Sector Border Patrol Area in Yuma, Arizona. The retrofit was documented to better understand LED technology performance in high-temperature environments. This document is a summary brief of the Phase 1.0 and 1.1 reports previously published on this demonstration.

  2. Border Basis for Polynomial System Solving and Optimization

    OpenAIRE

    Trébuchet, Philippe; Mourrain, Bernard; Abril Bucero, Marta

    2016-01-01

    International audience; We describe the software package borderbasix dedicated to the computation of border bases and the solutions of polynomial equations. We present the main ingredients of the border basis algorithm and the other methods implemented in this package: numerical solutions from multiplication matrices, real radical computation, polynomial optimization. The implementation parameterized by the coefficient type and the choice function provides a versatile family of tools for poly...

  3. Accountings of Selecting Sperm on the (ethical) border

    DEFF Research Database (Denmark)

    Willum Adrian, Stine

    will analyze how women and their partners crossing the Danish border accounts for their donor choice, and their practices of choosing. I will be exploring the question: How are women and their partners accounting for choosing a sperm donor, crossing the (ethical) border to Denmark? The use of the term......-sited ethnographic fieldwork at a Danish private fertility clinic, and a Danish sperm bank. The presentation will mainly draw on interviews with fertility travellers going through treatment with donor sperm in Denmark....

  4. The borders between Azerbaijan, Georgia, and Russia: Soviet heritage

    OpenAIRE

    Arkhipova, Ekaterina

    2005-01-01

    The administrative-territorial reforms carried out under Soviet power in the Caucasus to delimitate Russia, Azerbaijan, and Georgia have always been and remain a bone of contention. So far their governments have not yet come to terms on several problems on certain border stretches. For fourteen years now, delimitation has been going on with varying intensity. Russia and Azerbaijan have come the closest to settling these disputes with respect to the Daghestanian stretch of their common border....

  5. Militarization of the border and illegal immigration: Tamaulipas laborers

    OpenAIRE

    Simón Pedro Izcara Palacios

    2009-01-01

    Tamaulipas presents a long tradition of rural migration to the United States in search of farm employment. Until the eighties Tamaulipas’ undocumented workers crossed the border easily. However, from the nineties, as a result of a restrictive migration policy centered exclusively on the “supply–side” to cross the border has become intricate. As a result, most part of immigrants is using the services of “smuggles”. This paper analyses the impact of the militarization of the frontier on the emi...

  6.   Border Carbon Adjustments, the UNFCCC and WTO Rules

    DEFF Research Database (Denmark)

    Nielsen, Laura

    2010-01-01

      My presentation on Trade and Climate Change concludes that border carbon adjustments can be consistent with both the climate change and WTO rules - depending of course on their design - but that they are not necessarily attractive. ......  My presentation on Trade and Climate Change concludes that border carbon adjustments can be consistent with both the climate change and WTO rules - depending of course on their design - but that they are not necessarily attractive. ...

  7. Public Health and Terrorism Preparedness: Cross-Border Issues

    OpenAIRE

    Olson, Debra; Leitheiser, Aggie; Atchison, Christopher; Larson, Susan; Homzik, Cassandra

    2005-01-01

    On December 15, 2003, the Centers for Public Health Preparedness at the University of Minnesota and the University of Iowa convened the “Public Health and Terrorism Preparedness: Cross-Border Issues Roundtable.” The purpose of the roundtable was to gather public health professionals and government agency representatives at the state, provincial, and local levels to identify unmet cross-border emergency preparedness and response needs and develop strategies for addressing these needs. Represen...

  8. Alternate Pacing of Border-Collision Period-Doubling Bifurcations.

    Science.gov (United States)

    Zhao, Xiaopeng; Schaeffer, David G

    2007-11-01

    Unlike classical bifurcations, border-collision bifurcations occur when, for example, a fixed point of a continuous, piecewise C1 map crosses a boundary in state space. Although classical bifurcations have been much studied, border-collision bifurcations are not well understood. This paper considers a particular class of border-collision bifurcations, i.e., border-collision period-doubling bifurcations. We apply a subharmonic perturbation to the bifurcation parameter, which is also known as alternate pacing, and we investigate the response under such pacing near the original bifurcation point. The resulting behavior is characterized quantitatively by a gain, which is the ratio of the response amplitude to the applied perturbation amplitude. The gain in a border-collision period-doubling bifurcation has a qualitatively different dependence on parameters from that of a classical period-doubling bifurcation. Perhaps surprisingly, the differences are more readily apparent if the gain is plotted vs. the perturbation amplitude (with the bifurcation parameter fixed) than if plotted vs. the bifurcation parameter (with the perturbation amplitude fixed). When this observation is exploited, the gain under alternate pacing provides a useful experimental tool to identify a border-collision period-doubling bifurcation.

  9. 76 FR 22746 - Conecuh Valley Railway, LLC-Acquisition and Operation Exemption-Conecuh Valley Railroad Co., Inc.

    Science.gov (United States)

    2011-04-22

    ... Surface Transportation Board Conecuh Valley Railway, LLC--Acquisition and Operation Exemption--Conecuh Valley Railroad Co., Inc. Conecuh Valley Railway, LLC (CVR), a noncarrier, has filed a verified notice of exemption under 49 CFR 1150.31 to acquire from Conecuh Valley Railroad Co., Inc. (COEH), and to operate...

  10. Valley-filtered edge states and quantum valley Hall effect in gated bilayer graphene.

    Science.gov (United States)

    Zhang, Xu-Long; Xu, Lei; Zhang, Jun

    2017-05-10

    Electron edge states in gated bilayer graphene in the quantum valley Hall (QVH) effect regime can carry both charge and valley currents. We show that an interlayer potential splits the zero-energy level and opens a bulk gap, yielding counter-propagating edge modes with different valleys. A rich variety of valley current states can be obtained by tuning the applied boundary potential and lead to the QVH effect, as well as to the unbalanced QVH effect. A method to individually manipulate the edge states by the boundary potentials is proposed.

  11. Valley-protected backscattering suppression in silicon photonic graphene

    CERN Document Server

    Chen, Xiao-Dong

    2016-01-01

    In this paper, we study valley degree of freedom in all dielectric silicon photonic graphene. Photonic band gap opening physics under inversion symmetry breaking is revisited by the viewpoint of nonzero valley Chern number. Bulk valley modes with opposite orbital angular momentum are unveiled by inspecting time-varying electric fields. Topological transition is well illustrated through photonic Dirac Hamiltonian. Valley dependent edge states and the associated valley-protected backscattering suppression around Z-shape bend waveguide have been demonstrated.

  12. Hydrothermal system of Long Valley caldera, California

    Energy Technology Data Exchange (ETDEWEB)

    Sorey, M.L.; Lewis, R.E.; Olmsted, F.H.

    1978-01-01

    The geologic and hydrologic setting of the hydrothermal system are described. The geochemical and thermal characteristics of the system are presented. A mathematical model of the Long Valley caldera is analyzed. (MHR)

  13. Burrowing Owl - Palo Verde Valley [ds197

    Data.gov (United States)

    California Department of Resources — These burrowing owl observations were collected during the spring and early summer of 1976 in the Palo Verde Valley, eastern Riverside County, California. This is an...

  14. Woodcock "Roundup" 2001 at Canaan Valley NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In an effort to make a more complete census of breeding American woodcock in the Canaan Valley, a volunteer survey was performed in April. The idea was to coordinate...

  15. Alluvial Boundary of California's Central Valley

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This digital dataset defines the extent of the alluvial deposits in the Central Valley of California and encompasses the contiguous Sacramento, San Joaquin, and...

  16. Goldstone Apple Valley Radio Telescope Project.

    Science.gov (United States)

    Ibe, Mary; MacLaren, Dave

    2003-01-01

    Describes the Goldstone Apple Valley Radio Telescope (GAVRT) project as a way of teaching astronomy concepts to middle school students. The project provides students opportunities to work with professional scientists. (SOE)

  17. Woodcock "Roundup" 2004 at Canaan Valley NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — On April 24, 2004 the refuge sponsored the fourth annual ''woodcock round up", a volunteer event to perform a woodcock survey in Canaan Valley. The event was started...

  18. Woodcock "Roundup" 2002 at Canaan Valley NWR

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — On April 20, 2002 an annual Woodcock Roundup survey was conducted to document American woodcock presence in Canaan Valley. The Annual Woodcock roundup began in April...

  19. Vegetation - San Felipe Valley [ds172

    Data.gov (United States)

    California Department of Resources — This Vegetation Map of the San Felipe Valley Wildlife Area in San Diego County, California is based on vegetation samples collected in the field in 2002 and 2005 and...

  20. Meie mees Silicon Valleys / Kertu Ruus

    Index Scriptorium Estoniae

    Ruus, Kertu, 1977-

    2007-01-01

    Ilmunud ka: Delovõje Vedomosti 5. dets. lk. 4. Peaminister Andrus Ansip avas Eesti Ettevõtluse Sihtasutuse esinduse Silicon Valley pealinnas San Joses. Vt. samas: Ränioru kliima on tehnoloogiasõbralik; Andrus Viirg

  1. Meie ingel Silicon Valleys / Raigo Neudorf

    Index Scriptorium Estoniae

    Neudorf, Raigo

    2008-01-01

    Ettevõtluse Arendamise Sihtasutuse esinduse töölepanekust USAs Silicon Valleys räägib esinduse juht Andrus Viirg. Vt. ka: Eestlasi leidub San Franciscos omajagu; Muljetavaldav karjäär; USAga ammune tuttav

  2. Death Valley%死亡山谷

    Institute of Scientific and Technical Information of China (English)

    Suasan Spano; 文迪

    2003-01-01

    @@ Late-afternoon light tints the mountains as two hikers trek1 across Stovepipe Wells sand dunes2 in Death Valley, Calif. Dunes near Scotty's Castle and Zabriskie Point are also popular tourist sights.

  3. Meie ingel Silicon Valleys / Raigo Neudorf

    Index Scriptorium Estoniae

    Neudorf, Raigo

    2008-01-01

    Ettevõtluse Arendamise Sihtasutuse esinduse töölepanekust USAs Silicon Valleys räägib esinduse juht Andrus Viirg. Vt. ka: Eestlasi leidub San Franciscos omajagu; Muljetavaldav karjäär; USAga ammune tuttav

  4. Meie mees Silicon Valleys / Kertu Ruus

    Index Scriptorium Estoniae

    Ruus, Kertu, 1977-

    2007-01-01

    Ilmunud ka: Delovõje Vedomosti 5. dets. lk. 4. Peaminister Andrus Ansip avas Eesti Ettevõtluse Sihtasutuse esinduse Silicon Valley pealinnas San Joses. Vt. samas: Ränioru kliima on tehnoloogiasõbralik; Andrus Viirg

  5. Land Protection Plan: Swan Valley Conservation Area

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Land Protection Plan for Swan Valley Conservation Area provides a description of the project, a description of the area and its resources, threats to the...

  6. Mapping the potential of cross-border cooperation in West Africa

    DEFF Research Database (Denmark)

    Walther, Olivier; Vollmer, Sebastian

    2015-01-01

    Mapping the socio-economic potential of border regions can provide great insights as to where cross-border co-operation could be intensified in West Africa.......Mapping the socio-economic potential of border regions can provide great insights as to where cross-border co-operation could be intensified in West Africa....

  7. Borders in dispute : the construction of state and nation in international diplomacy

    NARCIS (Netherlands)

    Boonen, Cris Anne

    2015-01-01

    New states seldom have new borders. The outcome of international negotiations is typically to maintain existing international borders and to follow administrative borders in demarcating the new international borders in line with the uti possidetis principle. These existing boundaries however prove

  8. A Crustal Velocity Model for South Mexicali Valley, Baja California, México.

    Science.gov (United States)

    Ramirez, E.; Vidal-Villegas, A.; Stock, J. M.; Gonzalez-Fernandez, A.

    2016-12-01

    The northern Baja California region consists of two subregions of different geological features: the Peninsular Ranges of Baja California, of granitic composition, and the Mexicali Valley region, characterized by a series of sedimentary basins: the Laguna Salada and the Mexicali Valley. Due to the lack of an appropriate crust model for South Mexicali Valley, a refraction study was conducted. We installed 16 three-component short period stations (2 Hz) and one broadband station (100 s - 50 Hz). The stations, spaced 6 km along a refraction profile, recorded a blast performed in the southwest Arizona near the border with Sonora, Mexico. Records gathered were used to estimate a crust velocity structure model for South Mexicali Valley. The beginning of the profile is at San Luis Rio Colorado (SLRC), Sonora and its ending is at the middle of Sierra Juarez, Baja California. As a "reverse shot", for a 47 km section between SLRC and El Mayor Mountain, we used an aftershock M 3.4 of the 2010 M 7.2 El Mayor - Cucapah earthquake. Record sections show seismograms with impulsive P arrivals for nearby stations. The arrival Pn wave is observed at three stations located in Laguna Salada and Sierra Juarez. From the first arrivals of refractions and reflections of the P wave we performed direct modeling of travel times and relative amplitudes (normalized synthetic seismograms). Method based on asymptotic ray theory programed in the RAYINVR software (Zelt and Smith, 1992). We propose an average-three-layer velocity structure model: 2.9, 5.6 and 6.9 km/s, with thicknesses of 1.2, 4.4 and 9.6 km, respectively. Velocities of our model for the region under study are about 1 km/s higher than the model proposed by McMechan and Mooney (1984) for the Imperial Valley. The preliminary interpretation using the "reverse shot" indicates a crust of 15 km depth beneath the Mexicali Valley and 19 km under the El Mayor Mountain and Laguna Salada basin. On the eastern side of the El Mayor Mountain we

  9. Geology and ground-water resources of the Deer Lodge Valley, Montana

    Science.gov (United States)

    Konizeski, Richard L.; McMurtrey, R.G.; Brietkrietz, Alex

    1968-01-01

    The Deer Lodge Valley is a basin trending north-south within Powell, Deer Lodge, and Silver Bow Counties in west-central Montana, near the center of the Northern Rocky Mountains physiographic province. It trends northward between a group of relatively low, rounded mountains to the east and the higher, more rugged Flint Creek Range to the west. The Clark Fork and its tributaries drain the valley in a northerly direction. The climate is semiarid and is characterized by long cold winters and short cool summers. Agriculture and ore refining are the principal industries. Both are dependent on large amounts of water. The principal topographic features are a broad lowland, the Clark Fork flood plain, bordered by low fringing terraces that are in turn bordered by broad, high terraces, which slope gently upward to the mountains. The high terraces have been mostly obscured in the south end of the valley by erosion and by recent deposition of great coalescent fans radiating outward frown the mouths of various tributary canyons. The mountains east of the Deer Lodge Valley are formed mostly of Cretaceous sedimentary and volcanic rocks and a great core of Upper Cretaceous to lower Tertiary granitic rocks; those west of the valley are formed of Precambrian to Cretaceous sedimentary rocks and a core of lower Tertiary granitic rocks. Field relationships, gravimetric data, and seismic data indicate that the valley is a deep graben, which formed in early Tertiary time after emplacement of the Boulder and Philipsburg batholiths. During the Tertiary Period the valley was partly filled to a maximum depth of more than 5,500 feet with erosional detritus that came from the surrounding mountains and was interbedded with minor amounts of volcanic ejecta. This material accumulated in a great variety of local environments. Consequently the resultant deposits are of extremely variable lithology in lateral and vertical sequence. The deposits grade from unconsolidated to well-cemented and from

  10. CASE STUDIES OF CROSS-BORDER CO-OPERATION IN EUROPEAN TOURISM – PERSPECTIVES AND CHALLENGES FOR THE CROSS-BORDER REGION BUCOVINA/OBLAST TSCHERNIWZI

    OpenAIRE

    HEIKE BÄHRE

    2016-01-01

    The article focuses on success factors and management models in destination management for cross-border co-operation in tourism. The method is based on literature research, case-studies in European cross-border-regions and descriptive.

  11. 75 FR 5780 - Green Borders Geothermal, LLC, Complainant, v. Terra-Gen Dixie Valley, LLC, Respondent; Notice of...

    Science.gov (United States)

    2010-02-04

    ... System Operator Corp.'s Control Area. \\1\\ Oxbow Power Marketing, Inc., 76 FERC ] 61, 031 (1996) and Oxbow Power Marketing, Inc., 79 FERC ] 61, 193. \\2\\ Promoting Wholesale Competition Through Open Access Non... Policy Study Group, et al. v. FERC, 225 F.3d 667 (D.C. Cir. 2000), cert. granted in part and denied...

  12. Ion induced changes in the structure of bordered pit membranes.

    Science.gov (United States)

    Lee, Jinkee; Holbrook, N Michele; Zwieniecki, Maciej A

    2012-01-01

    Ion-mediated changes in xylem hydraulic resistance are hypothesized to result from hydrogel like properties of pectins located in the bordered pit membranes separating adjacent xylem vessels. Although the kinetics of the ion-mediated changes in hydraulic resistance are consistent with the swelling/deswelling behavior of pectins, there is no direct evidence of this activity. In this report we use atomic force microscopy (AFM) to investigate structural changes in bordered pit membranes associated with changes in the ionic concentration of the surrounding solution. When submerged in de-ionized water, AFM revealed bordered pit membranes as relatively smooth, soft, and lacking any sharp edges surface, in contrast to pictures from scanning electron microscope (SEM) or AFM performed on air-dry material. Exposure of the bordered pit membranes to 50 mM KCl solution resulted in significant changes in both surface physical properties and elevation features. Specifically, bordered pit membranes became harder and the fiber edges were clearly visible. In addition, the membrane contracted and appeared much rougher due to exposed microfibers. In neither solution was there any evidence of discrete pores through the membrane whose dimensions were altered in response to the ionic composition of the surrounding solution. Instead the variable hydraulic resistance appears to involve changes in the both the permeability and the thickness of the pit membrane.

  13. The role of the regions in border dynamics in Europe

    Directory of Open Access Journals (Sweden)

    Desiderio Fernández Manjón

    2005-05-01

    Full Text Available This article analyses the role that the regions have played during this past half century, and which they continue to play now, in the changes that are occurring along the borders between European states and in the webs of interests that are woven as a consequence ofthis evolution. The mapping of borderlines associated with people endowed with singularities is a delicate, complex task, as demonstrated by several paradigmatic examples: the creation of new borders (Flanders and the profound modification of historical orders (the canton of Jura. The difficulty may lie in approval processes and in the appropriate conjugation of interests of other peoples and minorities existing within them. There are several Europeaninstitutions which are contributing to deeply modifying the imaginary of international borders. On the one hand, the Council of Europe, which fosters, among other things, cross-border cooperation and inter-regional cooperation. Secondly, the European Union institutions havetaken many ideas from the Council of Europe and made them their own: the Committee of the Regions and cross-border cooperation. In addition, these institutions force the unitary states to establish a territorial division taking into account the income levels of the population.

  14. Being thought from beyond our borders: Towards ethical global citizenship

    Directory of Open Access Journals (Sweden)

    Johann-Albrecht Meylahn

    2009-09-01

    Full Text Available This article is a response to the challenge of global citizenship in an age of global crisis. Citizenship has to do with where one feels �at home�, namely the space that gifts identity and life. What kind of narrative is necessary to transform global space into a home from where we can go beyond our borders to embrace the other in multidisciplinary research or interfaith praxis? The different models for multidisciplinary research are made possible by the idea that research seeks that which is beyond its borders. This search could be a common space where the different traditions can accommodate one another, but it is not a home. The dominant discourse of this common space is to seek commonality and identities across borders while being aware of but ignoring differences � identity at the expense of differences. A home founded on identity at the expense of difference will always exclude. Theology can either be interpreted as thinking beyond the borders toward the Divine, or the Divine thinking us. The Exodus, the Incarnation and the Cross are all narratives of the Other crossing borders, liberating from boundaries, deconstructing the laws and norms that exclude. The religious traditions of these sacred narratives have something to offer, namely: to be thought by the Other, to receive life and (alien identity from the Other, the gift of a home which is continuously deconstructed by the home still to come, therefore always open for the Other.

  15. Ion induced changes in the structure of bordered pit membranes

    Directory of Open Access Journals (Sweden)

    Jinkee eLee

    2012-03-01

    Full Text Available Xylem hydraulic resistance varies with ion concentration in sap solution. It is assumed that this variation in resistance results from hydrogel like properties of pectins located in bordered pit membranes separating adjacent vessels. Although kinetics of the resistance change suggests swelling/deswelling behavior of the pectins, there is no direct evidence of this activity. In this report we provide evidence of structural changes in bordered pit membranes responding to variation in ionic concentration of solute around it using atomic force microscopy (AFM. AFM revealed bordered pit membranes as relatively smooth, soft and lacking any sharp edges surface when submerged in de-ionized water, in contrast to pictures from scanning electron microscope (SEM or AFM performed on air dry material. Exposure of the bordered pit membranes to 50 mM KCl solution resulted in significant changes in both surface physical properties with and elevation features as bordered pit membrane became harder, with visible edges of fibers and collapsed, while no change in porosity was observed. Analysis suggests a need for a major shift in our understanding to the physical bases of variable xylem resistance from change in porosity to change in pathway length. Findings support the role of actuating properties of hybrid hydrogel-cellulose materials in water redistribution and embolism resistance.

  16. Public health and terrorism preparedness: cross-border issues.

    Science.gov (United States)

    Olson, Debra; Leitheiser, Aggie; Atchison, Christopher; Larson, Susan; Homzik, Cassandra

    2005-01-01

    On December 15, 2003, the Centers for Public Health Preparedness at the University of Minnesota and the University of Iowa convened the "Public Health and Terrorism Preparedness: Cross-Border Issues Roundtable." The purpose of the roundtable was to gather public health professionals and government agency representatives at the state, provincial, and local levels to identify unmet cross-border emergency preparedness and response needs and develop strategies for addressing these needs. Representatives from six state and local public health departments and three provincial governments were invited to identify cross-border needs and issues using a nominal group process. The result of the roundtable was identification of the needs considered most important and most doable across all the focus groups. The need to collaborate on and exchange plans and protocols among agencies was identified as most important and most doable across all groups. Development of contact protocols and creation and maintenance of a contact database was also considered important and doable for a majority of groups. Other needs ranked important across the majority of groups included specific isolation and quarantine protocols for multi-state responses; a system for rapid and secure exchange of information; specific protocols for sharing human resources across borders, including emergency credentials for physicians and health care workers; and a specific protocol to coordinate Strategic National Stockpile mechanisms across border communities.

  17. Christmas Valley Renewable Energy Assessment

    Energy Technology Data Exchange (ETDEWEB)

    Del Mar, Robert [Oregon Department of Energy, Salem, OR (United States)

    2017-05-22

    In partnership with the Oregon Military Department, the Department of Energy used the award to assess and evaluate renewable resources in a 2,622-acre location in Lake County, central Oregon, leading to future development of up to 200 MW of solar electricity. In partnership with the Oregon Military Department, the Department of Energy used the award to assess and evaluate renewable resources in a 2,622-acre location in Lake County, central Oregon, leading to future development of up to 200 MW of solar electricity. The Oregon Military Department (Military) acquired a large parcel of land located in south central Oregon. The land was previously owned by the US Air Force and developed for an Over-the-Horizon Backscatter Radar Transmitter Facility, located about 10 miles east of the town of Christmas Valley. The Military is investigating a number of uses for the site, including Research and Development (R&D) laboratory, emergency response, military operations, developing renewable energy and related educational programs. One of the key potential uses would be for a large scale solar photovoltaic power plant. This is an attractive use because the site has excellent solar exposure; an existing strong electrical interconnection to the power grid; and a secure location at a moderate cost per acre. The project objectives include: 1. Site evaluation 2. Research and Development (R&D) facility analysis 3. Utility interconnection studies and agreements 4. Additional on-site renewable energy resources analysis 5. Community education, outreach and mitigation 6. Renewable energy and emergency readiness training program for veterans

  18. Valley polarization in Si(100) at zero magnetic field.

    Science.gov (United States)

    Takashina, K; Ono, Y; Fujiwara, A; Takahashi, Y; Hirayama, Y

    2006-06-16

    The valley splitting, which lifts the degeneracy of the lowest two valley states in a SiO(2)/Si(100)/SiO(2) quantum well, is examined through transport measurements. We demonstrate that the valley splitting can be observed directly as a step in the conductance defining a boundary between valley-unpolarized and -polarized regions. This persists to well above liquid helium temperature and shows no dependence on magnetic field, indicating that single-particle valley splitting and valley polarization exist in (100) silicon even at zero magnetic field.

  19. Graphene Nanobubbles as Valley Filters and Beam Splitters

    DEFF Research Database (Denmark)

    Settnes, Mikkel; Power, Stephen; Brandbyge, Mads

    2016-01-01

    The energy band structure of graphene has two inequivalent valleys at the K and K' points of the Brillouin zone. The possibility to manipulate this valley degree of freedom defines the field of valleytronics, the valley analogue of spintronics. A key requirement for valleytronic devices is the ab......The energy band structure of graphene has two inequivalent valleys at the K and K' points of the Brillouin zone. The possibility to manipulate this valley degree of freedom defines the field of valleytronics, the valley analogue of spintronics. A key requirement for valleytronic devices...

  20. Ground-water potentialities in the Crescent Valley, Eureka and Lander Counties, Nevada

    Science.gov (United States)

    Zones, Christie Paul

    1961-01-01

    The Crescent Valley is an intermontane basin in Eureka and Lander Counties, just south of the Humboldt River in north-central Nevada. The valley floor, with an area of about 150 square miles, has a shape that more nearly resembles a Y than a crescent, although the valley apparently was named after the arc described by its southern part and northeastern arm. The northwestern arm of the Y extends northward to the small railroad town of Beowawe on the Humboldt River; the northeastern arm lies east of the low Dry Hills. The leg of the Y extends southwestward toward a narrow gap which separates the Crescent Valley from the Carico Lake Valley. The total drainage area of the Crescent Valley-about 700 square miles--includes also the slopes of the bordering mountain ranges: the Shoshone Range to the west, the Cortez Mountains to the east, and the Toiyabe Range to the south. The early history of the Crescent Valley was dominated by mining of silver and gold, centered at Lander in the Shoshone Range and at Cortez and Mill Canyon in the Cortez Mountains, but in recent years the only major mining activity has been at Gold Acres; there open-pit mining of low-grade gold ore has supported a community of about 200. For many years the only agricultural enterprises in the valley were two cattle ranches, but recently addition lands have been developed for the raising of crops in the west-central part of the valley. The average annual precipitation upon the floor of the Crescent Valley is probably less than 7 inches, of which only a little more than 1 inch formally falls during the growing season (from June through September). This is far less than the requirement of any plants of economic value, and irrigation is essential to agricultural development. Small perennial streams rising in the mountains have long been utilized for domestic supply, mining and milling activities of the past, and irrigation, and recently some large wells have been developed for irrigation. In 1956 the total

  1. Controllable valley splitting in silicon quantum devices

    Science.gov (United States)

    Goswami, Srijit; Slinker, K. A.; Friesen, Mark; McGuire, L. M.; Truitt, J. L.; Tahan, Charles; Klein, L. J.; Chu, J. O.; Mooney, P. M.; van der Weide, D. W.; Joynt, Robert; Coppersmith, S. N.; Eriksson, Mark A.

    2007-01-01

    Silicon has many attractive properties for quantum computing, and the quantum-dot architecture is appealing because of its controllability and scalability. However, the multiple valleys in the silicon conduction band are potentially a serious source of decoherence for spin-based quantum-dot qubits. Only when a large energy splits these valleys do we obtain well-defined and long-lived spin states appropriate for quantum computing. Here, we show that the small valley splittings observed in previous experiments on Si-SiGe heterostructures result from atomic steps at the quantum-well interface. Lateral confinement in a quantum point contact limits the electron wavefunctions to several steps, and enhances the valley splitting substantially, up to 1.5meV. The combination of electrostatic and magnetic confinement produces a valley splitting larger than the spin splitting, which is controllable over a wide range. These results improve the outlook for realizing spin qubits with long coherence times in silicon-based devices.

  2. Accountings of Selecting Sperm on the (ethical) border

    DEFF Research Database (Denmark)

    Willum Adrian, Stine

    information (phenotypical descriptions) or extended profiles, including descriptions of the donors hobbies, looks and likes. I find fertility travellers crossing the Danish border particularly interesting, because many of them travel in order to bypass a national legislation. In this presentation, I...... will analyze how women and their partners crossing the Danish border accounts for their donor choice, and their practices of choosing. I will be exploring the question: How are women and their partners accounting for choosing a sperm donor, crossing the (ethical) border to Denmark? The use of the term...... accountability is central, because it implies both a theoretical and methodological inspirations from Donna Haraway and Karen Barad. The idea is to use accountability as a theoretical and methodological concept that enables the development of an ethics of practices. The presentation is based on a multi...

  3. Cross-border regional innovation system integration: An analytical framework

    DEFF Research Database (Denmark)

    Makkonen, Teemu; Weidenfeld, Adi; Williams, Allan

    2017-01-01

    The importance of inter-regional cooperation and innovation are widely accepted in the development rhetoric of the European Union. The highlighted importance of both themes in the context of borderlands has recently led to the coining of a new concept, cross-border regional innovation system....... However, little attention has been given to the empirical analysis of the concept. This paper suggests a framework for empirically validating the concept by examining the levels of integration between cross-border regions. The outcome is a proposed framework can be operationalized by measurable indicators...... of cross-border cooperation in a regional innovation system setting. The framework was further tested with illustrative empirical cases that demonstrate its feasibility....

  4. Multinationals, Cross-border Acquisitions and Wage Dispersion

    DEFF Research Database (Denmark)

    Heyman, Fredrik; Sjöholm, Fredrik; Tingvall, Patrick Gustavsson

    2011-01-01

    We examine the impact of cross-border acquisitions on intra-firm wage dispersion using a detailed Swedish linked employer-employee data set including data on all firms and about 50% of the Swedish labour force with information on job-tasks and education. Foreign acquisitions of domestic multinati......We examine the impact of cross-border acquisitions on intra-firm wage dispersion using a detailed Swedish linked employer-employee data set including data on all firms and about 50% of the Swedish labour force with information on job-tasks and education. Foreign acquisitions of domestic...... multinationals and local firms increase wage dispersion but so do also other types of cross-border acquisitions. Hence, it is the acquisition itself rather than foreign ownership that increases wage dispersion. The positive wage effect is concentrated to CEOs and other managers, whereas other groups are either...

  5. Block-bordered diagonalization and parallel iterative solvers

    Energy Technology Data Exchange (ETDEWEB)

    Alvarado, F.; Dag, H.; Bruggencate, M. ten [Univ. of Wisconsin, Madison, WI (United States)

    1994-12-31

    One of the most common techniques for enhancing parallelism in direct sparse matrix methods is the reorganization of a matrix into a blocked-bordered structure. Incomplete LDU factorization is a very good preconditioner for PCG in serial environments. However, the inherent sequential nature of the preconditioning step makes it less desirable in parallel environments. This paper explores the use of BBD (Blocked Bordered Diagonalization) in connection with ILU preconditioners. The paper shows that BBD-based ILU preconditioners are quite amenable to parallel processing. Neglecting entries from the entire border can result in a blocked diagonal matrix. The result is a great increase in parallelism at the expense of additional iterations. Experiments on the Sequent Symmetry shared memory machine using (mostly) power system that matrices indicate that the method is generally better than conventional ILU preconditioners and in many cases even better than partitioned inverse preconditioners, without the initial setup disadvantages of partitioned inverse preconditioners.

  6. State borders in ETRS89 coordinates – reality or fiction ?

    Directory of Open Access Journals (Sweden)

    Jiří Poláček

    2015-12-01

    Full Text Available Common unique ETRS89 coordinates of the state boundaries are crucial for cross-border data harmonization for international projects. In the frame of European Location Framework (ELF project Czech Office for Surveying, Mapping and Cadastre (ČÚZK cooperates with Poland on egde-matching on the state border. During the preliminary phase of the project was some difficulty identified. If the state boundary is measured and administered in the national coordinate system, the accuracy of the transformation into the ETRS89 is influenced by discrepancies of the local trigonometric network, which results in two slightly different state boundaries. Final solution for Europe – international treaties on the state borders based on the ETRS89 coordinates – is necessary, but it will take years.

  7. Regional Disparities along the Romanian-Hungarian Border Region

    Directory of Open Access Journals (Sweden)

    EGON NAGY

    2006-01-01

    Full Text Available The paper presents the actual state and condition of territorial inequalities at the Romanian-Hungarian border region, which shows - at present - an evident advantage of the Hungarian side, from the point of view of complex socio-economical aspects. This advantage is especially outstanding for the Hungarian side in the field of infrastructural supply (drinking water, natural gas, and public sewage networks, but it is valid for some characteristics of human capital, too, (above all, with regard to the illiteracy rate and the proportion of highly skilled persons with bachelor degree. Despite these difficulties, these inequalities are not insurmountable and should not affect efficient cross-border cooperation between the two countries. This regional inventory facilitates the evaluation of the starting-point of this kind of cooperation and also depicts some aspects of the interregional cooperation of the four counties north of the Romanian-Hungarian border region which belong to the Carpathian Euroregion.

  8. Border Collision Bifurcations in Two Dimensional Piecewise Smooth Maps

    CERN Document Server

    Banerjee, S; Banerjee, Soumitro; Grebogi, Celso

    1999-01-01

    Recent investigations on the bifurcations in switching circuits have shown that many atypical bifurcations can occur in piecewise smooth maps which can not be classified among the generic cases like saddle-node, pitchfork or Hopf bifurcations occurring in smooth maps. In this paper we first present experimental results to establish the theoretical problem: the development of a theory and classification of the new type of bifurcations resulting from border collision. We then present a systematic analysis of such bifurcations by deriving a normal form --- the piecewise linear approximation in the neighborhood of the border. We show that there can be eleven qualitatively different types of border collision bifurcations depending on the parameters of the normal form, and these are classified under six cases. We present a partitioning of the parameter space of the normal form showing the regions where different types of bifurcations occur. This theoretical framework will help in explaining bifurcations in all syst...

  9. Root Border Cells and Their Role in Plant Defense.

    Science.gov (United States)

    Hawes, Martha; Allen, Caitilyn; Turgeon, B Gillian; Curlango-Rivera, Gilberto; Minh Tran, Tuan; Huskey, David A; Xiong, Zhongguo

    2016-08-01

    Root border cells separate from plant root tips and disperse into the soil environment. In most species, each root tip can produce thousands of metabolically active cells daily, with specialized patterns of gene expression. Their function has been an enduring mystery. Recent studies suggest that border cells operate in a manner similar to mammalian neutrophils: Both cell types export a complex of extracellular DNA (exDNA) and antimicrobial proteins that neutralize threats by trapping pathogens and thereby preventing invasion of host tissues. Extracellular DNases (exDNases) of pathogens promote virulence and systemic spread of the microbes. In plants, adding DNase I to root tips eliminates border cell extracellular traps and abolishes root tip resistance to infection. Mutation of genes encoding exDNase activity in plant-pathogenic bacteria (Ralstonia solanacearum) and fungi (Cochliobolus heterostrophus) results in reduced virulence. The study of exDNase activities in plant pathogens may yield new targets for disease control.

  10. The role of root border cells in plant defense.

    Science.gov (United States)

    Hawes, M C; Gunawardena, U; Miyasaka, S; Zhao, X

    2000-03-01

    The survival of a plant depends upon the capacity of root tips to sense and move towards water and other nutrients in the soil. Perhaps because of the root tip's vital role in plant health, it is ensheathed by large populations of detached somatic cells - root 'border' cells - which have the ability to engineer the chemical and physical properties of the external environment. Of particular significance, is the production by border cells of specific chemicals that can dramatically alter the behavior of populations of soilborne microflora. Molecular approaches are being used to identify and manipulate the expression of plant genes that control the production and the specialized properties of border cells in transgenic plants. Such plants can be used to test the hypothesis that these unusual cells act as a phalanx of biological 'goalies', which neutralize dangers to newly generated root tissue as the root tip makes its way through soil.

  11. Trans-European transport network and cross-border governance

    DEFF Research Database (Denmark)

    Guasco, Clement Nicolas

    2014-01-01

    This article looks at the implementation of trans-European transport corridors in the EU and the influence it has on governance within EU member-states. It considers the implementation of such a scheme in the context of cross-border cooperation and discusses the system of governance necessary...... for coordinating knowledge, efforts and solutions across several national systems. In order to understand this governance setting, one needs to understand the specific quality of transnational governance in the EU, which is neither purely international nor federally integrated. The transport corridor between Malmö...... and Hamburg is taken as a case for discussion. Cross-border governance is analyzed within a multi-level policy network approach including actors from supranational, national and subnational levels, in order to determine the existence of a policy network across the borders. The main finding is a depiction...

  12. Forecasting the electricity consumption of the Mexican border states maquiladoras

    Energy Technology Data Exchange (ETDEWEB)

    Flores, C.E.; Phelan, P.E. [Arizona State Univ., Dept. of Mechanical and Aerospace Engineering, Tempe, AZ (United States); Mou, J.-I. [Taiwan Semiconductor Manufacturing Co., Operation Planning Div., Hsin-Chu (Taiwan); Bryan, H. [Arizona State Univ., School of Architecture, Tempe, AZ (United States)

    2004-07-01

    The consumption of electricity by maquiladora industries in the Mexican border states is an important driver for determining future powerplant needs in that area. An industrial electricity forecasting model is developed for the border states' maquiladoras, and the outputs are compared with a reference forecasting model developed for the US industrial sector, for which considerably more data are available. This model enables the prediction of the effect of implementing various energy efficiency measures in the industrial sector. As an illustration, here the impact of implementing energy-efficient lighting and motors in the Mexican border states' maquiladoras was determined to be substantial. Without such energy efficiency measures, electricity consumption for these industries is predicted to rise by 64% from 2001 to 2010, but if these measures are implemented on a gradual basis over the same time period, electricity consumption is forecast to rise by only 36%. (Author)

  13. Conception of integrator in cross-border E-commerce

    Directory of Open Access Journals (Sweden)

    Arkadiusz Kawa

    2016-03-01

    Full Text Available Background:  E-commerce is one of the most dynamic and important sectors of the economy. The latest trend in this market is cross-border trade. It is based on selling products to customers who are located in other countries. However, it is connected to several problems, such as a high cost and long time of delivery, language barriers, different legal and tax conditionings, etc. Methods: The studies were conducted on the basis of the authors' experience in the field of e-commerce. The issue of cross-border commerce was mainly analysed with the use of reports of the European Commission. The aim of the article is to propose a conception of an integrator of cross-border e-commerce, which will make it possible, among other things, to solve logistic problems. Results: The article presents an authorial conception of an integrator in cross-border e-commerce. Its main task is to integrate the whole supply chain. Thanks to the economies of scale, obtained as a result of consolidation of parcels from many e-shops, the integrator is able to achieve lower delivery costs in international transport, make returns of goods more effective and serve customers from different countries better. Conclusions: The conception of an integrator in cross-border commerce proposed in the article may increase competitiveness of micro and small e-enterprises, especially in the international arena. Moreover, applying this conception may contribute to a rise in the attractiveness of cross-border commerce, which, as result of a greater sale level, would contribute to an increase in the total e-commerce.

  14. Establishment of crown-root domain borders in mouse incisor.

    Science.gov (United States)

    Juuri, Emma; Saito, Kan; Lefebvre, Sylvie; Michon, Frederic

    2013-10-01

    Teeth are composed of two domains, the enamel-covered crown and the enamel-free root. The understanding of the initiation and regulation of crown and root domain formation is important for the development of bioengineered teeth. In most teeth the crown develops before the root, and erupts to the oral cavity whereas the root anchors the tooth to the jawbone. However, in the continuously growing mouse incisor the crown and root domains form simultaneously, the crown domain forming the labial and the root domain the lingual part of the tooth. While the crown-root border on the incisor distal side supports the distal enamel extent, reflecting an evolutionary diet adaptation, on the incisor mesial side the root-like surface is necessary for the attachment of the interdental ligament between the two incisors. Therefore, the mouse incisor exhibits a functional distal-mesial asymmetry. Here, we used the mouse incisor as a model to understand the mechanisms involved in the crown-root border formation. We analyzed the cellular origins and gene expression patterns leading to the development of the mesial and distal crown-root borders. We discovered that Barx2, En1, Wnt11, and Runx3 were exclusively expressed on the mesial crown-root border. In addition, the distal border of the crown-root domain might be established by cells from a different origin and by an early Follistatin expression, factor known to be involved in the root domain formation. The use of different mechanisms to establish domain borders gives indications of the incisor functional asymmetry.

  15. Brujeria and the U.S.-Mexico Border Outlaw

    Directory of Open Access Journals (Sweden)

    Rachel Conover

    2007-12-01

    Full Text Available This paper investigates the death metal band Brujeria, their use of both traditional and contemporary outlaw imagery, and their connection to the narcocorrido, in order to examine the tenacity of the outlaw paradigm as an expression of resistance by subordinate groups in situations of social inequality. It deals with the contemporary figure of the outlaw in connection to the U.S.-Mexico border region, as influenced by outlaw traditions in the area, and as an expression of specific contemporary historical circumstances of that region, including Mexican economic crisis, globalization, and border conflicts surrounding immigration, drug trafficking, and labor.

  16. Accountings of Selecting Sperm on the (ethical) border

    DEFF Research Database (Denmark)

    Willum Adrian, Stine

    accountability is central, because it implies both a theoretical and methodological inspirations from Donna Haraway and Karen Barad. The idea is to use accountability as a theoretical and methodological concept that enables the development of an ethics of practices. The presentation is based on a multi...... will analyze how women and their partners crossing the Danish border accounts for their donor choice, and their practices of choosing. I will be exploring the question: How are women and their partners accounting for choosing a sperm donor, crossing the (ethical) border to Denmark? The use of the term...

  17. Militarization of the border and illegal immigration: Tamaulipas laborers

    Directory of Open Access Journals (Sweden)

    Simón Pedro Izcara Palacios

    2009-07-01

    Full Text Available Tamaulipas presents a long tradition of rural migration to the United States in search of farm employment. Until the eighties Tamaulipas’ undocumented workers crossed the border easily. However, from the nineties, as a result of a restrictive migration policy centered exclusively on the “supply–side” to cross the border has become intricate. As a result, most part of immigrants is using the services of “smuggles”. This paper analyses the impact of the militarization of the frontier on the emigration of Tamaulipas’ illegal rural workers seeking for farm jobs in the United States.

  18. Group choreography: mechanisms orchestrating the collective movement of border cells.

    Science.gov (United States)

    Montell, Denise J; Yoon, Wan Hee; Starz-Gaiano, Michelle

    2012-10-01

    Cell movements are essential for animal development and homeostasis but also contribute to disease. Moving cells typically extend protrusions towards a chemoattractant, adhere to the substrate, contract and detach at the rear. It is less clear how cells that migrate in interconnected groups in vivo coordinate their behaviour and navigate through natural environments. The border cells of the Drosophila melanogaster ovary have emerged as an excellent model for the study of collective cell movement, aided by innovative genetic, live imaging, and photomanipulation techniques. Here we provide an overview of the molecular choreography of border cells and its more general implications.

  19. Problems and perspectives of border-zone air quality

    Energy Technology Data Exchange (ETDEWEB)

    Tolivia, E.

    1982-10-01

    The Saneamiento Atmosferico of Mexico with the United States Environmental Protection Agency has formulated an agreement elaborating programs to address the problems of border-zone air quality according to the specific problems of particular trans-national areas. Industries and power plants affect air quality on both sides of the border. In areas especially suffering from vehicle emissions, the agreement provides for the monitoring of air quality through an air-meter system. Vehicle maintenance and inspection programs are now being put into effect.

  20. Borderlands Theory: Producing Border Epistemologies with Gloria Anzaldua

    OpenAIRE

    Orozco-Mendoza, Elva Fabiola

    2008-01-01

    This study is dedicated to examine the concept of borders, geographical and otherwise, as instruments that are socially produced. It utilizes Gloria Anzalduaâ s theoretical framework of Borderlands theory as a set of processes that seek to attain the de-colonization of the inner self. The historical and spatial dynamics of the geographical border between Mexico and United States, largely shaped by the U.S. expansionist agenda, resulted in the Mexican lost of more than half of its territory a...

  1. Reflection of bending Waves from Border of the Plate

    Directory of Open Access Journals (Sweden)

    Belubekyan M.V.

    2010-03-01

    Full Text Available To problems of the reflection of the bending waves from flat border of the ambience dedicated to the multiple studies. Relatively little works are connected with questions of the reflection curved waves from flat edge of the thin plate. In this work happen to the decisions of the problem of the plate under different border condition. For partial case of the free edge, as limiting case of the absence of the reflected wave, is got decision of the problem localized curved variations.

  2. Cross-border reproductive care: an Ethics Committee opinion.

    Science.gov (United States)

    2016-12-01

    Cross-border reproductive care (CBRC) is a growing worldwide phenomenon, raising questions about why assisted reproductive technology (ART) patients travel abroad, what harms and benefits may result, and what duties health-care providers may have in advising and treating patients who travel for reproductive services. Cross-border care offers benefits and poses harms to ART stakeholders, including patients, offspring, providers, gamete donors, gestational carriers, and local populations in destination countries. This document replaces the previous document of the same name, last published in 2013 (Fertil Steril 2013;100:645-50). Copyright © 2016 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

  3. Analysis of the Advantages of Creating Border Clusters

    Directory of Open Access Journals (Sweden)

    Liudmila Rosca-Sadurschi

    2015-08-01

    Full Text Available In a changing environment and rapid globalization, competitiveness of a country or region depends increasingly more effective in innovation. The main challenge for research and innovation is to facilitate the networking of companies and research laboratories. These networks can take the form of a highly integrated cross-border economic group, but may consist of action to facilitate business linkages and inter-laboratory, or cross-border clusters. The creation of these clusters requires performing several conditions but bring significant benefits to all stakeholders.

  4. Rift Valley fever: Real or perceived threat for Zambia?

    Directory of Open Access Journals (Sweden)

    George Dautu

    2012-06-01

    Full Text Available Rift Valley fever (RVF in Zambia was first reported in 1974 during an epizootic of cattle and sheep that occurred in parts of Central, Southern and Copperbelt Provinces. In 1990, the disease was documented in nine districts of the provinces of Zambia. In the last two decades, there have been no reports of RVF. This long period without reported clinical disease raises questions as to whether RVF is a current or just a perceived threat. To address this question, World Organisation for Animal Health (OIE disease occurrence data on RVF for the period 2005−2010 in the Southern Africa Development Community (SADC was analysed. From the analysis, it was evident that most countries that share a common border with Zambia had reported at least one occurrence of the disease during the period under review. Due to the absence of natural physical barriers between Zambia and most of her neighbours, informal livestock trade and movements is a ubiquitous reality. Analysis of the rainfall patterns also showed that Zambia received rains sufficient to support a mosquito population large enough for high risk of RVF transmission. The evidence of disease occurrence in nearby countries coupled with animal movement, and environmental risk suggests that RVF is a serious threat to Zambia. In conclusion, the current occurrence of RVF in Zambia is unclear, but there are sufficient indications that the magnitude of the circulating infection is such that capacity building in disease surveillance and courses on recognition of the disease for field staff is recommended. Given the zoonotic potential of RVF, these measures are also a prerequisite for accurate assessment of the disease burden in humans.

  5. Information Analysis Methodology for Border Security Deployment Prioritization and Post Deployment Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Booker, Paul M.; Maple, Scott A.

    2010-06-08

    Due to international commerce, cross-border conflicts, and corruption, a holistic, information driven, approach to border security is required to best understand how resources should be applied to affect sustainable improvements in border security. The ability to transport goods and people by land, sea, and air across international borders with relative ease for legitimate commercial purposes creates a challenging environment to detect illicit smuggling activities that destabilize national level border security. Smuggling activities operated for profit or smuggling operations driven by cross border conflicts where militant or terrorist organizations facilitate the transport of materials and or extremists to advance a cause add complexity to smuggling interdiction efforts. Border security efforts are further hampered when corruption thwarts interdiction efforts or reduces the effectiveness of technology deployed to enhance border security. These issues necessitate the implementation of a holistic approach to border security that leverages all available data. Large amounts of information found in hundreds of thousands of documents can be compiled to assess national or regional borders to identify variables that influence border security. Location data associated with border topics of interest may be extracted and plotted to better characterize the current border security environment for a given country or region. This baseline assessment enables further analysis, but also documents the initial state of border security that can be used to evaluate progress after border security improvements are made. Then, border security threats are prioritized via a systems analysis approach. Mitigation factors to address risks can be developed and evaluated against inhibiting factor such as corruption. This holistic approach to border security helps address the dynamic smuggling interdiction environment where illicit activities divert to a new location that provides less resistance

  6. Chapter 2. Assessment of undiscovered conventional oil and gas resources--Upper Jurassic-Lower Cretaceous Cotton Valley group, Jurassic Smackover interior salt basins total petroleum system, in the East Texas basin and Louisiana-Mississippi salt basins provinces.

    Science.gov (United States)

    Dyman, T.S.; Condon, S.M.

    2006-01-01

    The Jurassic Smackover Interior Salt Basins Total Petroleum System is defined for this assessment to include (1) Upper Jurassic Smackover Formation carbonates and calcareous shales and (2) Upper Jurassic and Lower Cretaceous Cotton Valley Group organic-rich shales. The Jurassic Smackover Interior Salt Basins Total Petroleum System includes four conventional Cotton Valley assessment units: Cotton Valley Blanket Sandstone Gas (AU 50490201), Cotton Valley Massive Sandstone Gas (AU 50490202), Cotton Valley Updip Oil and Gas (AU 50490203), and Cotton Valley Hypothetical Updip Oil (AU 50490204). Together, these four assessment units are estimated to contain a mean undiscovered conventional resource of 29.81 million barrels of oil, 605.03 billion cubic feet of gas, and 19.00 million barrels of natural gas liquids. The Cotton Valley Group represents the first major influx of clastic sediment into the ancestral Gulf of Mexico. Major depocenters were located in south-central Mississippi, along the Louisiana-Mississippi border, and in northeast Texas. Reservoir properties and production characteristics were used to identify two Cotton Valley Group sandstone trends across northern Louisiana and east Texas: a high-permeability blanket-sandstone trend and a downdip, low-permeability massive-sandstone trend. Pressure gradients throughout most of both trends are normal, which is characteristic of conventional rather than continuous basin-center gas accumulations. Indications that accumulations in this trend are conventional rather than continuous include (1) gas-water contacts in at least seven fields across the blanket-sandstone trend, (2) relatively high reservoir permeabilities, and (3) high gas-production rates without fracture stimulation. Permeability is sufficiently low in the massive-sandstone trend that gas-water transition zones are vertically extensive and gas-water contacts are poorly defined. The interpreted presence of gas-water contacts within the Cotton Valley

  7. Castro Valley High School's Solar Panels

    Science.gov (United States)

    Lew, A.; Ham, S.; Shin, Y.; Yang, W.; Lam, J.

    2014-12-01

    Solar panels are photovoltaic cells that are designed to convert the sun's kinetic energy to generate usable energy in the form of electricity. Castro Valley High School has tried to offset the cost of electricity by installing solar panels, costing the district approximately 3.29 million dollars, but have been installed incorrectly and are not operating at peak efficency. By using trigonometry we deduced that Castro Valley High School's south facing solar panels were at an incline of 10o and that the east and west facing solar panels are at an incline of 5o. By taking the averages of the optimum angles for the months of September through May, roughly when school is in session, we found that the optimum angle for south facing solar panels should be roughly 46o. This shows that Castro Valley High School has not used it's budget to its full potential due to the fact that the solar panels were haphazardly installed.

  8. Stably Stratified Flow in a Shallow Valley

    Science.gov (United States)

    Mahrt, L.

    2017-01-01

    Stratified nocturnal flow above and within a small valley of approximately 12-m depth and a few hundred metres width is examined as a case study, based on a network of 20 sonic anemometers and a central 20-m tower with eight levels of sonic anemometers. Several regimes of stratified flow over gentle topography are conceptually defined for organizing the data analysis and comparing with the existing literature. In our case study, a marginal cold pool forms within the shallow valley in the early evening but yields to larger ambient wind speeds after a few hours, corresponding to stratified terrain-following flow where the flow outside the valley descends to the valley floor. The terrain-following flow lasts about 10 h and then undergoes transition to an intermittent marginal cold pool towards the end of the night when the larger-scale flow collapses. During this 10-h period, the stratified terrain-following flow is characterized by a three-layer structure, consisting of a thin surface boundary layer of a few metres depth on the valley floor, a deeper boundary layer corresponding to the larger-scale flow, and an intermediate transition layer with significant wind-directional shear and possible advection of lee turbulence that is generated even for the gentle topography of our study. The flow in the valley is often modulated by oscillations with a typical period of 10 min. Cold events with smaller turbulent intensity and duration of tens of minutes move through the observational domain throughout the terrain-following period. One of these events is examined in detail.

  9. Restoring Hetch Hetchy Valley: The Role of Modeling in Policy

    Science.gov (United States)

    Null, Sarah E.; Lund, Jay R.

    2006-10-01

    In 1923, following years of opposition and debate, the City of San Francisco, Calif., completed the O'Shaughnessy Dam, which flooded Hetch Hetchy Valley in California's Yosemite National Park. Today, the future of Hetch Hetchy Valley is still debated.

  10. Evapotranspiration Input Data for the Central Valley Hydrologic Model (CVHM)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This digital dataset contains monthly reference evapotranspiration (ETo) data for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an...

  11. Measured compaction for 24 extensometers in the Central Valley

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This digital dataset contains the compaction data for 24 extensometers used for observations in the Central Valley Hydrologic Model (CVHM). The Central Valley...

  12. Measured compaction for 24 extensometers in the Central Valley

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This digital dataset contains the compaction data for 24 extensometers used for observations in the Central Valley Hydrologic Model (CVHM). The Central Valley...

  13. Mechanical control over valley magnetotransport in strained graphene

    Energy Technology Data Exchange (ETDEWEB)

    Ma, Ning, E-mail: maning@stu.xjtu.edu.cn [Department of Physics, MOE Key Laboratory of Advanced Transducers and Intelligent Control System, Taiyuan University of Technology, Taiyuan 030024 (China); Department of Applied Physics, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi' an Jiaotong University, Xi' an 710049 (China); Zhang, Shengli, E-mail: zhangsl@mail.xjtu.edu.cn [Department of Applied Physics, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi' an Jiaotong University, Xi' an 710049 (China); Liu, Daqing, E-mail: liudq@cczu.edu.cn [School of Mathematics and Physics, Changzhou University, Changzhou 213164 (China)

    2016-05-06

    Recent experiments report that the graphene exhibits Landau levels (LLs) that form in the presence of a uniform strain pseudomagnetic field with magnitudes up to hundreds of tesla. We further reveal that the strain removes the valley degeneracy in LLs, and leads to a significant valley polarization with inversion symmetry broken. This accordingly gives rise to the well separated valley Hall plateaus and Shubnikov–de Haas oscillations. These effects are absent in strainless graphene, and can be used to generate and detect valley polarization by mechanical means, forming the basis for the new paradigm “valleytronics” applications. - Highlights: • We explore the mechanical strain effects on the valley magnetotransport in graphene. • We analytically derive the dc collisional and Hall conductivities under strain. • The strain removes the valley degeneracy in Landau levels. • The strain causes a significant valley polarization with inversion symmetry broken. • The strain leads to the well separated valley Hall and Shubnikov–de Haas effects.

  14. Molecular epidemiology of Rift Valley fever virus.

    Science.gov (United States)

    Grobbelaar, Antoinette A; Weyer, Jacqueline; Leman, Patricia A; Kemp, Alan; Paweska, Janusz T; Swanepoel, Robert

    2011-12-01

    Phylogenetic relationships were examined for 198 Rift Valley fever virus isolates and 5 derived strains obtained from various sources in Saudi Arabia and 16 countries in Africa during a 67-year period (1944-2010). A maximum-likelihood tree prepared with sequence data for a 490-nt section of the Gn glycoprotein gene showed that 95 unique sequences sorted into 15 lineages. A 2010 isolate from a patient in South Africa potentially exposed to co-infection with live animal vaccine and wild virus was a reassortant. The potential influence of large-scale use of live animal vaccine on evolution of Rift Valley fever virus is discussed.

  15. Bioindicators from Mosquitofish (Gambusia affinis) Sampled from the Imperial Valley in Southern California

    Science.gov (United States)

    Jenkins, Jill A.; Draugelis-Dale, Rassa O.

    2006-01-01

    The Sonny Bono Salton Sea National Wildlife Refuge (SSNWR) is located 64 km north of the Mexican border at the southern end of the Salton Sea in California's Imperial Valley. Freshwater ponds and managed habitats at the SSNWR, Calipatria, Calif. are supplied with Colorado River water that carries compounds from upstream sources. Components include municipal and industrial discharges, agricultural drainage, and sewage plant inputs. Aquatic animals in these ecosystems are continuously exposed to multiple constituents, several of which have been demonstrated to be associated with hormonal disturbances. We investigated possible endocrine impacts to fish in the Imperial Valley, Calif., by addressing the null hypothesis that aquatic species in impacted sites did not exhibit evidence of endocrine disruption as compared with those from nonimpacted sites. The results presented are intended to provide managers with science-based information and interpretations about the condition of the animals in their ecosystems for the minimization of potential adverse effects to trust fish and wildlife resources and for the maximization of available water resources.

  16. Bioindicators from Mosquitofish (Gambusia affinis) Sampled from the Imperial Valley in Southern California

    Science.gov (United States)

    Jenkins, Jill A.; Draugelis-Dale, Rassa O.

    2006-01-01

    The Sonny Bono Salton Sea National Wildlife Refuge (SSNWR) is located 64 km north of the Mexican border at the southern end of the Salton Sea in California's Imperial Valley. Freshwater ponds and managed habitats at the SSNWR, Calipatria, Calif. are supplied with Colorado River water that carries compounds from upstream sources. Components include municipal and industrial discharges, agricultural drainage, and sewage plant inputs. Aquatic animals in these ecosystems are continuously exposed to multiple constituents, several of which have been demonstrated to be associated with hormonal disturbances. We investigated possible endocrine impacts to fish in the Imperial Valley, Calif., by addressing the null hypothesis that aquatic species in impacted sites did not exhibit evidence of endocrine disruption as compared with those from nonimpacted sites. The results presented are intended to provide managers with science-based information and interpretations about the condition of the animals in their ecosystems for the minimization of potential adverse effects to trust fish and wildlife resources and for the maximization of available water resources.

  17. Chronology, sedimentology, and microfauna of groundwater discharge deposits in the central Mojave Desert, Valley Wells, California

    Science.gov (United States)

    Pigati, Jeffrey S.; Miller, David M.; Bright, Jordon E.; Mahan, Shannon; Nekola, Jeffrey C.; Paces, James B.

    2011-01-01

    During the late Pleistocene, emergent groundwater supported persistent and long-lived desert wetlands in many broad valleys and basins in the American Southwest. When active, these systems provided important food and water sources for local fauna, supported hydrophilic and phreatophytic vegetation, and acted as catchments for eolian and alluvial sediments. Desert wetlands are represented in the geologic record by groundwater discharge deposits, which are also called spring or wetland deposits. Groundwater discharge deposits contain information on the timing and magnitude of past changes in water-table levels and, thus, are a source of paleohydrologic and paleoclimatic information. Here, we present the results of an investigation of extensive groundwater discharge deposits in the central Mojave Desert at Valley Wells, California. We used geologic mapping and stratigraphic relations to identify two distinct wetland sequences at Valley Wells, which we dated using radiocarbon, luminescence, and uranium-series techniques. We also analyzed the sediments and microfauna (ostracodes and gastropods) to reconstruct the specific environments in which they formed. Our results suggest that the earliest episode of high water-table conditions at Valley Wells began ca. 60 ka (thousands of calendar yr B.P.), and culminated in peak discharge between ca. 40 and 35 ka. During this time, cold (4–12 °C) emergent groundwater supported extensive wetlands that likely were composed of a wet, sedge-rush-tussock meadow mixed with mesic riparian forest. After ca. 35 ka, the water table dropped below the ground surface but was still shallow enough to support dense stands of phreatophytes through the Last Glacial Maximum (LGM). The water table dropped further after the LGM, and xeric conditions prevailed until modest wetlands returned briefly during the Younger Dryas cold event (13.0–11.6 ka). We did not observe any evidence of wet conditions during the Holocene at Valley Wells. The timing

  18. Slope and valley flows at the Cerdanya valley in the Pyrenees

    OpenAIRE

    Martínez Villagrasa, Daniel; Conangla Triviño, Laura; Tabarelli, Davidde; Jiménez, Maria Antònia; Miró, Josep Ramon; Zardi, Dino; Cuxart Rodamillans, Joan

    2015-01-01

    The Pyrenees are a mountain range running in the east-west direction. Most of their valleys are oriented in the north-south direction on both sides of the range. A significant exception is the Cerdanya valley, in Catalonia, which is a graben with NE-SW orientation , roughly 35 km long and 15 km wide with the bottom about 1000 m asl, surrounded by the main axis of the Pyrenees at the north (peaks above 2900 m asl) and by the Cadi range at the south (maximum high 2648 m asl). The valley bottom ...

  19. Tuberculosis-diabetes epidemiology in the border and non-border regions of Tamaulipas, Mexico.

    Science.gov (United States)

    Abdelbary, Bassent E; Garcia-Viveros, Moncerrato; Ramirez-Oropesa, Horacio; Rahbar, Mohammad H; Restrepo, Blanca I

    2016-12-01

    Type 2 diabetes mellitus (DM) is a re-emerging risk factor for TB development and adverse TB outcomes. As a follow-up of our previous study in 1998-2004, we reassessed prevalence of DM and its associated factors among 8431 TB patients using surveillance data from 2006 to 2013 for the Mexican state of Tamaulipas, across the border with Texas. Prevalence of DM was 25.2%, with an increase of at least 2.8% over the study period. Newly discovered factors associated with TB-DM (versus no DM) were lower education and higher unemployment (p < 0.001), which are reportedly associated with poorer DM management. At least 15% of the DM patients were newly-diagnosed and younger than those previously diagnosed, showing the importance of early DM diagnosis at TB clinics. TB-DM patients were more likely to have smear-positive, pulmonary (versus extra-pulmonary) and drug-resistant TB (1.9-, 3.8- and 1.4-fold, respectively). During treatment, TB-DM patients were more likely to be smear-positive, and less likely to die or abandon TB treatment. Thus, the increasing prevalence of DM among TB, and its association with low education, features of a more contagious TB, and drug resistance, highlight the need for design of TB management programs in DM patients, blood testing of all new TB patients for DM, and if positive for DM, testing for drug resistance.

  20. Cross-Border Interactions and Health in the Brazil-Colombia-Peru Border Zone

    Directory of Open Access Journals (Sweden)

    Martha Cecilia Suárez-Mutis

    2010-02-01

    Full Text Available The border area between Brazil, Colombia, and Peru has a population of over 100,000 people; at least a quarter are indigenous (mostly Tikuna, and the rest is composed of people from the Andean region and some itinerant groups (migrants, traders, etc.. The “twin cities”, Tabatinga (Brazil and Leticia (Colombia, receive a significant flux of people from the adjacent regions of each country, each one having a referral hospital for attending cases of moderate complexity. This region has a high incidence of  water-borne diseases, such as diarrhea and hepatitis, those transmitted by vectors, such as malaria and leishmaniasis, and other infectious diseases related to living conditions and the level of access to the health system, such as sexually transmitted infections, tuberculosis, and Hansen’s disease.. This work presents attempts to carry out a global analysis of the prevalence of some health problems introduced into the area during the last two decades, such as cholera epidemics, malaria, and HIV/AIDS infection, attempting to describe their main determinants in the region.

  1. 27 CFR 9.132 - Rogue Valley.

    Science.gov (United States)

    2010-04-01

    ... area touches the easterly boundary of the Siskiyou National Forest just south of Galice; (6) Then in a generally southwesterly direction (with many diversions) along the easterly border of the Siskiyou National Forest to the 42 degree 0 minute latitude line; (7) Then easterly along the 42 degree 0 minute...

  2. Of shipwrecks and Weddings: Borders and Mobilities in Europe

    NARCIS (Netherlands)

    Ponzanesi, S.

    2016-01-01

    This essay proposes a new visual politics of Europe’s borders that foregrounds encounters and trespassings. It focuses on the analysis of two films that have received wide international acclaim: On the Bride’s Side (2013) and Fuocoammare (2015). The films deal with migration as a humanitarian crisis

  3. Frontier and Border Regions in Early Modern Europe

    NARCIS (Netherlands)

    Esser, R.M.; Ellis, Steven G.

    2013-01-01

    That regional identities are constructed is now something of a truism in academic research. More recently regions have been conceptualized in the framework of Frontier and Border Studies, thus emphasizing their relationship to their neighbours in another state across a boundary line. In early modern

  4. EUROPEAN CROSS-BORDER MERGERS AND ACQUISITIONS- REALITIES AND PERSPECTIVES

    Directory of Open Access Journals (Sweden)

    Vancea Mariana

    2011-07-01

    Full Text Available This paper analyses the impact of the economic and financial crisis on merger and acquisition activity in Europe and the latest trends manifested on the cross-border merger and acquisition market involving European companies. Thus, a first objective of this research is to reveal the evolution of the European cross-border merger and acquisition activity in terms of dynamics, volume and structure. Another objective of this research is to reveal the short and medium term perspectives on mergers and acquisitions in Europe. Thus, under the continuous economic recovery of the European countries and the other worldwide economies, the recovery of financial markets and the growth of corporate profits, we shall witness an intensive cross-border merger and acquisition activity in Europe. The expansion engine of these operations seems to be represented by the emerging economies. This research is based on a systematic, logical and comparative analysis of scientific literature and statistical data regarding the cross-border mergers and acquisitions that involve European companies in recent years. This paper is part of the doctoral thesis Mergers and acquisitions- strategies of growth and development of enterprises. European and national particularities, coordinated by professor Ph.D. Alina Bădulescu from University of Oradea, Faculty of Economics. The doctoral research is supported by The Sectorial Operational Program for Human Resources Development 2007-2013, Contract POSDRU 59/1.5/S/1- Romanian researchers through modern and efficient doctoral programs.

  5. Seroprevalence of border disease in Danish sheep and goat herds

    DEFF Research Database (Denmark)

    Tegtmeier, C.; Stryhn, H.; Uttenthal, Åse

    2000-01-01

    A study was conducted in 1994-96 with the aim of assessing the serological prevalence of Border Disease (BD) among sheep and goats in Denmark and to investigate possible relations to herd factors. From each of 1000 herds, 2 blood samples were obtained from animals older than 1 year. The examinati...

  6. Border Crossing in the Classroom through Performed Ethnography

    Science.gov (United States)

    Goldstein, Tara

    2016-01-01

    In this essay I share the ways I have used performed ethnography to explore the notion of border crossing in an undergraduate course called "Equity and Activism in Education." Performed ethnography involves turning the findings of ethnographic research into a play script. My students read two performed ethnographies, "Harriet's…

  7. Borders in Nigeria’s Relations with Cameroun

    Directory of Open Access Journals (Sweden)

    Omolara Akinyemi

    2014-10-01

    Full Text Available Border incidences are sources of irritants in the relationships between Nigeria and Cameroun. Examples are not far-fetched from Bakassi Peninsula imbroglio leading to hostile relationship between the two countries, and subsequent ruling of Bakassi Peninsula to Cameroun by the International Court of Justice in 2002. Indeed, this also led to the revival of the Joint Cameroun-Nigeria Border Commission entrusted with the task of demarcation of the Land and Maritime boundaries between the two countries, as mandated by the 2002 judgment. However, the demarcation exercise has caused confusion and anxiety with the inhabitants of the Cross River State, Nigeria, resulting in the inability of the team to locate pillar 133A, thereby erecting a new pillar. This exercise is lacking in proper consideration of the effects on the people in the demarcation of the land boundary. Thus, the paper finds out that the demarcationof the Land boundary which the International Court of Justice perceived as the antidote to the border skirmishes between Nigeria and Cameroun is likely to generate to another border conflicts between the two countries. This is so because, the erecting of new pillars will lead to another claim of some parts of Nigeria to Cameroun. Hence, the demarcation of Land boundary if not properly checked may be an outcome of future skirmishes and chaos.

  8. Shifting Institutional Boundaries through Cross-Border Higher Education

    Science.gov (United States)

    Amaral, Alberto; Tavares, Orlanda; Cardoso, Sónia; Sin, Cristina

    2016-01-01

    Cross-border higher education (CBHE) has been changing the organizational boundaries of higher education institutions (HEIs). This study aims to analyze the shifting boundaries of Portuguese HEIs through the lens of the identity concept in organization theories, considering three contexts with different levels of regulation: African…

  9. Global Liquidity and Drivers of Cross-Border Bank Flows

    NARCIS (Netherlands)

    Cerutti, E.; Claessens, S.; Ratnovski, L.

    2014-01-01

    This paper provides a definition of global liquidity consistent with its meaning as the "ease of financing" in international financial markets. Using a longer time series and broader sample of countries than in previous studies, it identifies global factors driving cross-border bank flows, alongside

  10. Cross-Border Acquisitions and Employee-Engagement

    NARCIS (Netherlands)

    Liang, Hao; Renneboog, Luc; Vansteenkiste, Cara

    2017-01-01

    We provide novel evidence that a firm’s engagement in employee-related issues explains part of the value difference between its domestic and cross-border takeovers. An acquirer’s investment in employee relations is positively related to the firm’s performance when acquiring domestically, but

  11. Gazons duurder dan borders met rozen of vaste planten?

    NARCIS (Netherlands)

    Hop, M.E.C.M.

    2013-01-01

    In de eerste uitgave van Vitale Stad stond een artikel over gazons die duurder zouden zijn dan borders met vaste planten of sierheesters. Volgens dit artikel zouden vaste planten dus goedkoper zijn dan gazons. Als wij die vraag stellen aan de gemiddelde groenbeheerder, krijgt je een compleet ander a

  12. The National Guard on the Southwest Border: Defining The Role

    Science.gov (United States)

    2012-03-22

    rape, and child molestation. CPB also seized over 870,000 pounds of illegal drugs, $147 million in currency, more than 29,000 fraudulent documents...the number increased to more than 11,600 drug related homicides and an estimated 34,500 total deaths since 2006, making the Mexican border one of the

  13. Cross-border Insurance in Europe : Challenges for Supervision

    NARCIS (Netherlands)

    D. Schoenmaker (Dirk); J. Sass (Jan)

    2016-01-01

    markdownabstractAt the start of Solvency II in January 2016, there is no overview of the insurance market in Europe. This paper develops a methodology to link various data sets on foreign branches and subsidiaries. The result is a new and comprehensive data set of cross-border insurance in Europe. W

  14. Environmental cohesion across the Hungarian-Croatian border

    Directory of Open Access Journals (Sweden)

    Varjú Viktor

    2016-01-01

    Full Text Available Environmental cohesion (as a new EU paradigm for a place-based interpretation of environmental justice has a clear connection to territorial cohesion. Based on this idea, advantages for people can include an equitable distribution of environmental protection and access to environmental services. In non-EU countries regional environmental cohesion is used as an instrument to accelerate accession to the EU and it may be manifested as a declaration of environmental diplomacy. Environmental cohesion across a border can be identified as soon as two regions - alongside the border - start to cooperate in order to improve environmental conditions and to ensure equal access to natural resources and environmental services. After a literature review environmental cohesion is evaluated in multidimensional way, using empirical quantitative and qualitative data and a two-pillar based methodological approach. The Croatian-Hungarian border area was closed for a long time. As a result, developments avoided the area, on the other, natural resources remained mainly untouched. However, the two countries have had different approaches towards the area, while, Croatia made efforts to build another water power plant, Hungary intended to preserve and extend a Natural Park. This contradiction remained until the accession process of Croatia. Finally the disagreement between the two countries was moderated by a UNESCO Biosphere Reserve that was created alongside the border in 2015. The post-2010 period has been characterised by an increasing number of environmental-related cooperations.

  15. Seroprevalence of border disease in Danish sheep and goat herds

    DEFF Research Database (Denmark)

    Tegtmeier, C.; Stryhn, H.; Uttenthal, Åse;

    2000-01-01

    A study was conducted in 1994-96 with the aim of assessing the serological prevalence of Border Disease (BD) among sheep and goats in Denmark and to investigate possible relations to herd factors. From each of 1000 herds, 2 blood samples were obtained from animals older than 1 year. The examinati...

  16. Languages without Borders: TESOL in a Transient World

    Science.gov (United States)

    Nero, Shondel

    2012-01-01

    In today's transient world, where a continual multidirectional flow of people, goods, and services has deterritorialized languages and their users, languages, especially English, are now without borders. In this context, English language teaching (ELT) as a profession is called to a new task. In this article, I examine this task by asking the…

  17. What lures cross-border venture capital inflows?

    NARCIS (Netherlands)

    Schertler, Andrea; Tykvova, Tereza

    2012-01-01

    We investigate if economic factors drive gross and net cross-border venture capital inflows differently. Using a dataset of venture capital investments in European and North American countries from 2000 to 2008, we find that higher expected economic growth goes hand in hand with higher gross as well

  18. Rethinking borders in a mobile world: An alternative model

    DEFF Research Database (Denmark)

    Walther, Olivier; Retaillé, Denis

    national borders. The second section elaborates the fundamentals of an alternative model that is not reliant, as is classical spatial analysis, on points, lines and surfaces to represent movement. The article then presents three types of limits: the confines, the threshold and the horizon, which result...

  19. Rethinking borders in a mobile world: An alternative model

    DEFF Research Database (Denmark)

    Walther, Olivier; Retaillé, Denis

    2015-01-01

    national borders. The second section elaborates the fundamentals of an alternative model that is not reliant, as is classical spatial analysis, on points, lines and surfaces to represent movement. The article then presents three types of limits: the confines, the threshold and the horizon, which result...

  20. The German-Romance Language Borders in Switzerland.

    Science.gov (United States)

    Rash, Felicity

    2002-01-01

    Focuses on language contact phenomena at the borders of Switzerland's four language communities (German, French, Italian, and Romansch), the legal status of the four Swiss national languages, and the language policies of individual bilingual and trilingual cantons. Describes the historical movements of the language boundaries, with particular…

  1. Frontier and Border Regions in Early Modern Europe

    NARCIS (Netherlands)

    Esser, R.M.; Ellis, Steven G.

    2013-01-01

    That regional identities are constructed is now something of a truism in academic research. More recently regions have been conceptualized in the framework of Frontier and Border Studies, thus emphasizing their relationship to their neighbours in another state across a boundary line. In early modern

  2. Blending Borders of Language and Culture: Schooling in La Villita

    Science.gov (United States)

    Olmedo, Irma M.

    2009-01-01

    This article examines the efforts of a school in a Mexican community in Chicago to help children and parents capitalize on the language and culture of their 2 worlds. It builds on the concepts of border crossings and hybridity, metaphors used to describe the sociocultural and linguistic reality of people living transnationally. Some US communities…

  3. Recruiting Languages and Lifeworlds for Border-Crossing Compositions

    Science.gov (United States)

    Skerrett, Allison; Bomer, Randy

    2013-01-01

    In this article, we show how two transnational youth, with the instructional support of their teacher, recruited their languages and lifeworlds, particularly their border-crossing experiences, as tools for engaging with school-based literacy practices. We analyze literary texts that the students composed, showing how the students' uses of…

  4. Modelling cross-border regional network for innovative development

    OpenAIRE

    Pere Tumbas; Predrag Matkovic; Marton Sakal

    2013-01-01

    The article provides detailed presentations of entities and functions of the Cross-border Regional network for innovative development, the manner and methods of its functioning, and its significance for enhancing university-industry cooperation in innovative development. Special attention was devoted to proper implementation of the Triple Helix concept in the development of an innovative network.

  5. Taeniasis among Refugees Living on Thailand-Myanmar Border, 2012.

    Science.gov (United States)

    McCleery, Ellen J; Patchanee, Prapas; Pongsopawijit, Pornsawan; Chailangkarn, Sasisophin; Tiwananthagorn, Saruda; Jongchansittoe, Papaspong; Dantrakool, Anchalee; Morakote, Nimit; Phyu, Hnin; Wilkins, Patricia P; Noh, John C; Phares, Christina; O'Neal, Seth

    2015-10-01

    We tested refugee camp residents on the Thailand-Myanmar border for Taenia solium infection. Taeniasis prevalence was consistent with that for other disease-endemic regions, but seropositivity indicating T. solium taeniasis was rare. Seropositivity indicating cysticercosis was 5.5% in humans, and 3.2% in pigs. Corralling pigs and providing latrines may control transmission of these tapeworms within this camp.

  6. The principle of territoriality and cross-border loss compensation

    NARCIS (Netherlands)

    Marres, O.

    2011-01-01

    Member States are free to define their income tax base. They may in principle disregard foreign-sourced income, resulting in the impossibility of cross-border loss compensation. The European Court of Justice (ECJ) has accepted the principle of territoriality as a criterion for the division of the au

  7. Modelling cross-border regional network for innovative development

    Directory of Open Access Journals (Sweden)

    Pere Tumbas

    2013-07-01

    Full Text Available The article provides detailed presentations of entities and functions of the Cross-border Regional network for innovative development, the manner and methods of its functioning, and its significance for enhancing university-industry cooperation in innovative development. Special attention was devoted to proper implementation of the Triple Helix concept in the development of an innovative network.

  8. Acateco de la Frontera Sur (Acateco of the Southern Border).

    Science.gov (United States)

    Maldonado, Roberto Zavala

    This document is one of 17 volumes on indigenous Mexican languages and is the result of a project undertaken by the Archivo de Lenguas Indigenas de Mexico. This volume contains information on Acatec, an indigenous language of Mexico spoken along Mexico's southern border. The objective of collecting such a representative sampling of the linguistic…

  9. How Neighbours Communicate: The Role of Language in Border Relations

    Directory of Open Access Journals (Sweden)

    Sonni Olsen

    2014-10-01

    Full Text Available This paper reports on a study of the linguistic situation in the border region where Norway meets Russia in the north. The aim of the study was to investigate language use when contact is revitalised after a long period with closed borders. The Norwegian and Russian languages are very different in vocabulary and structure, which makes communication difficult. How are the two languages affected by extended contact and migration across the border? The study was carried out by the author and Marit Bjerkeng through interviews, a questionnaire and observation of the linguistic situations in two Norwegian communities. The results show an ongoing development where the neighbouring language is increasingly noticeable, and there is a clear link between attitudes, identity and language use. The role of public policy seems to play an important role for the developing linguistic situation, as the Barents region as a political concept introduced in the 1990s has led to cross-border contact within various fields and also inspired local language policy, contributing to cultural pride an

  10. Border Kids in the Home of the Brave

    Science.gov (United States)

    Zimmerman-Orozco, Susan

    2015-01-01

    As a new wave of unaccompanied minors flowed across the border between Mexico and the United States in 2014, educators began to scramble to educate students who came to them with little or no English, having survived traumatic and arduous immigration journeys, and often with significantly limited formal schooling. Many of these children were…

  11. Cross-border banking in Europe and financial stability

    NARCIS (Netherlands)

    Schoenmaker, D.; Wagner, W.B.

    2013-01-01

    In this paper, we propose country-specific and systemic metrics that can be used to judge whether cross-border banking in a country (or region) takes a desirable form. Applying these metrics to the EU countries, we find that the countries with the largest banking centres, the UK and Germany, are wel

  12. Newcomer Immigrant Students Reinventing Academic Lives across National Borders

    Science.gov (United States)

    Oikonomidoy, Eleni

    2014-01-01

    Relocation across national borders poses unique challenges and possibilities to newcomer immigrant students who enter diverse urban high schools. Based on focus group data with 27 newcomer students, in this article the author attends to the ways in which these students begin to counteract the challenges that relocation poses for them by…

  13. Cross-border banking in Europe and financial stability

    NARCIS (Netherlands)

    Schoenmaker, D.; Wagner, W.B.

    2013-01-01

    In this paper, we propose country-specific and systemic metrics that can be used to judge whether cross-border banking in a country (or region) takes a desirable form. Applying these metrics to the EU countries, we find that the countries with the largest banking centres, the UK and Germany, are

  14. Bridging Borders: Toward a Pedagogy of Preparedness for Visiting Faculty

    Science.gov (United States)

    Mizzi, Robert C.

    2017-01-01

    This analytical article largely draws on the experiences of visiting faculty teaching at post-secondary institutions overseas. What is largely understood in the literature is that visiting faculty need to navigate the sociocultural, professional, and contextual differences that shape the work context. Drawing on the theory of border pedagogy, this…

  15. Inconsistency in precipitation measurements across Alaska and Yukon border

    Directory of Open Access Journals (Sweden)

    L. Scaff

    2015-07-01

    Full Text Available This study quantifies the inconsistency in gauge precipitation observations across the border of Alaska and Yukon. It analyses the precipitation measurements by the national standard gauges (NWS 8-in gauge and Nipher gauge, and the bias-corrected data to account for wind effect on the gauge catch, wetting loss and trace events. The bias corrections show a significant amount of errors in the gauge records due to the windy and cold environment in the northern areas of Alaska and Yukon. Monthly corrections increase solid precipitation by 135 % in January, 20 % for July at the Barter Island in Alaska, and about 31 % for January and 4 % for July at the Yukon stations. Regression analyses of the monthly precipitation data show a stronger correlation for the warm months (mainly rainfall than for cold month (mainly snowfall between the station pairs, and small changes in the precipitation relationship due to the bias corrections. Double mass curves also indicate changes in the cumulative precipitation over the study periods. This change leads to a smaller and inverted precipitation gradient across the border, representing a significant modification in the precipitation pattern over the northern region. Overall, this study discovers significant inconsistency in the precipitation measurements across the US and Canada border. This discontinuity is greater for snowfall than for rainfall, as gauge snowfall observations have large errors in the windy and cold conditions. This result will certainly impact regional, particularly cross borders, climate and hydrology investigations.

  16. Optimal Deployment of Unmanned Aerial Vehicles for Border Surveillance

    Science.gov (United States)

    2014-06-01

    and intercept intruders that are trying to trespass a border. These intruders can include terrorists, drug traffickers, smugglers, illegal immigrants ...intruders can include terrorists, drug traffickers, smugglers, illegal immigrants , and others who represent a threat to national interests. Unmanned...traffickers, smugglers, illegal immigrants , and others who represent a threat to national interests. Unmanned aerial vehicles (UAVs) allow a modernization

  17. Rethinking borders in a mobile world: An alternative model

    DEFF Research Database (Denmark)

    Walther, Olivier; Retaillé, Denis

    2015-01-01

    national borders. The second section elaborates the fundamentals of an alternative model that is not reliant, as is classical spatial analysis, on points, lines and surfaces to represent movement. The article then presents three types of limits: the confines, the threshold and the horizon, which result...

  18. Why socio-political borders and boundaries matter in conservation

    DEFF Research Database (Denmark)

    Dallimer, Martin; Strange, Niels

    2015-01-01

    to address the adverse effects of socio-political borders on conservation: (i) scale-matching, (ii) quantification of the mutual economic benefits of conservation across boundaries, (iii) determining transboundary societal values, and (iv) acknowledging the importance of stakeholder behaviour and incentives....

  19. Book Design, Part III: Illuminated Letters and Borders.

    Science.gov (United States)

    Harms, Jeanne McLain; Lettow, Lucille

    1997-01-01

    This third in a series of articles on book design discusses and illustrates elements found within the body of the work: (1) illuminated letters, which serve as decoration, reflect cultural elements, enhance the meaning of text and illustrations, or establish motif, setting, or theme; and (2) borders, which serve as frames for text and…

  20. Cross-Border Takeovers, Corruption, and Related Aspects of Governance

    NARCIS (Netherlands)

    Weitzel, U.; Berns, S.

    2006-01-01

    We use a panel of 4979 cross-border and domestic takeovers to test the relation between host country corruption and premiums paid for local targets. Host country corruption is negatively associated with target premiums, after correcting for other governance related factors such as political stabilit

  1. Cross-Border Electricity Cooperation in South Asia

    OpenAIRE

    Singh, Anoop; Jamasb, Tooraj; Nepal, Rabindra; Toman, Michael

    2015-01-01

    South Asian countries, facing challenges in efficiently meeting growing electricity demand, can benefit from increased cross-border electricity cooperation and trade by harnessing complementarities in electricity demand patterns, diversity in resource endowments for power generation, and gains from larger market access. The region has witnessed slow progress in expanding regional electrici...

  2. The principle of territoriality and cross-border loss compensation

    NARCIS (Netherlands)

    Marres, O.

    2011-01-01

    Member States are free to define their income tax base. They may in principle disregard foreign-sourced income, resulting in the impossibility of cross-border loss compensation. The European Court of Justice (ECJ) has accepted the principle of territoriality as a criterion for the division of the

  3. Cross- border interfirm knowledge generation and enterprise development in Africa

    DEFF Research Database (Denmark)

    Kuada, John

    2015-01-01

    This chapter is grounded in the theoretical understanding that knowledge provides the foundation for innovation within fi rms and industries and propels economic growth. Furthermore, the amount and value of the learning that takes place within and between fi rms locally and in cross- border colla...

  4. Taeniasis among Refugees Living on Thailand–Myanmar Border, 2012

    OpenAIRE

    McCleery, Ellen J.; Patchanee, Prapas; Pongsopawijit, Pornsawan; Chailangkarn, Sasisophin; Tiwananthagorn, Saruda; Jongchansittoe, Papaspong; Dantrakool, Anchalee; Morakote, Nimit; Phyu, Hnin; Wilkins, Patricia P.; Noh, John C.; Phares, Christina; O’Neal, Seth

    2015-01-01

    We tested refugee camp residents on the Thailand–Myanmar border for Taenia solium infection. Taeniasis prevalence was consistent with that for other disease-endemic regions, but seropositivity indicating T. solium taeniasis was rare. Seropositivity indicating cysticercosis was 5.5% in humans, and 3.2% in pigs. Corralling pigs and providing latrines may control transmission of these tapeworms within this camp.

  5. Creditor Protection in a Cross-Border Context

    NARCIS (Netherlands)

    McCahery, J.A.

    2006-01-01

    This comment focuses initially on the way in which cross-border mobility plays a central role in shaping creditor protection regimes across the European Union. We conclude with some preliminary observations about the European Insolvency Regulation and the potential impact of forum shopping on

  6. 27 CFR 9.124 - Wild Horse Valley.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Wild Horse Valley. 9.124... Horse Valley. (a) Name. The name of the viticultural area described in this section is “Wild Horse Valley.” (b) Approved Map. The appropriate map for determining the boundaries of the “Wild Horse...

  7. 27 CFR 9.126 - Santa Clara Valley.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Santa Clara Valley. 9.126... Santa Clara Valley. (a) Name. The name of the viticultural area described in this section is “Santa Clara Valley.” (b) Approved Maps. The appropriate maps for determining the boundaries of the...

  8. Crossing and Passing: Discursive Borders in Off Shoring

    Directory of Open Access Journals (Sweden)

    Sanae Elmoudden

    2009-01-01

    Full Text Available As a term in popular discourse, globalisation marks a celebrated openness of global spaces. Critics of globalisation argue that a global economy creates borders that are more discursive than territorial. A current challenge to globalisation scholars is reaching an understanding of how the many configurations of context, space, time and place created by globalisation result in new ways of organizing space and identity. Based on rich ethnographic data from an off shore call centre in Morocco and informed by interdisciplinary research on space, this paper bridges the links between territorial and discursive borders in the global social network of off shoring. Metaphorical spaces come about when dynamic configurations of contexts at territorial borders relate or are made to relate. Call centre agents use metaphorical spaces to fix the meaning of space. In this article, I identify two different metaphorical spaces: crossing and passing that help agents organize and negotiate their spaces and subsequently their identities and power relations. I suggest that agents negotiate place through space. This crossing takes place as they imbricate the Moroccan context of “L’hrig” within the continuum of the call centre. I also suggest that agents negotiate space through place. This passing occurs via the imbrication of metaphorical space of polyvalence. Crossing and passing inscribe not only a literal meaning of “movement” and “disembodiment”, but also the nuanced meaning of “movement and staying” and “disembodiment and re-embodiment” in a place where conjunctions of space, time, place and context collide. The creation of metaphorical spaces of crossing and passing suggests modification of our understanding of diaspora: attaining the diasporic space can no longer depend on physical borders alone; it must also rely on discursive borders.

  9. Morphotectonics of the Tunka rift and its bordering mountains in the Baikal rift system, Russia

    Science.gov (United States)

    Shchetnikov, Alexander

    2016-11-01

    The Tunka section of the Baikal rift system presents a uniform alternation of the following neostructural forms: tilted horsts and asymmetrical block uplifts on the northern flank; the central system of the rift valleys; and the arched uplift of the southern flank. This is a standard set of morphostructural elements for the Baikal rift system. The main morphological feature of the Tunka rift is the strong inclination of its floor, ranging from 900 m to 200 km in general elevation above Lake Baikal. Such traits of recent geodynamics as volcanism, thermal activity, and seismicity are also different from other parts of the rift zone. All of these features of the Tunka rift are related to the deep structure of the rift zone. The peculiarities of the neotectonic structure of the Tunka rift, which are clearly expressed morphologically as is typical of the Baikal rift system, as well as its unique features are in accordance with deep geodynamic processes of the region. On the other hand, the development of the rift basin structures of the southwestern area near Baikal is complicated by inversion deformations. Local uplifts followed by deformations of the basin sedimentary cover and inverted morphostructures expressed in relief are fixed against the background of the general subsidence of blocks of the pre-Cenozoic basement grabens. The Tunka rift has repeatedly experienced inversion deformations throughout its history. The last wave of such deformations involved the southwestern region near Baikal in the second half of the late Pleistocene. During the Quaternary, the positive component prevailed in the whole range of vertical movements of the inter-rift and interbasin blocks; since the late Neogene, these structures have experienced a slow but steady uplift, accompanied by their extension at the expense of the bordering basins. The remote influence of the India-Asia collision on the formation of the southwestern section of the Baikal rift system is very significant and

  10. A Voice of the US Southwestern Border: The 2012 “We the Border: Envisioning a Narrative for Our Future” Conference

    Directory of Open Access Journals (Sweden)

    Josiah McC. Heyman

    2013-08-01

    Full Text Available In July 2012, a diverse group of US residents living near the US-Mexico border met in El Paso, Texas for a conference entitled, We the Border: Envisioning a Narrative for Our Future.  This paper describes a vision for the US-Mexico border by diverse border residents that is at odds with the widespread view of the border as a threat to the United States. These border residents viewed their region as a set of human communities with rights, capacities, and valuable insights and knowledge. They embraced an alternative vision of border enforcement that would focus on “quality” (dangerous entrants and contraband over “quantity” (mass migration enforcement.  They called for investments in the functionality and security of ports of entry, rather than in between ports of entry.  They noted the low crime rate in US border cities, and examined how policies of not mixing local law enforcement with federal immigration enforcement contributed to this achievement. They saw the border region as the key transportation and brokerage zone of the emerging, integrated North American economy. In their view, the bilingual, bicultural, and binational skills that characterize border residents form part of a wider border culture that embraces diversity and engenders creativity. Under this vision the border region is not an empty enforcement zone, but is part of the national community and its residents should enjoy the same constitutional and human rights as other US residents. The conference participants emphasized the necessity and value of accountability and oversight of central government enforcement operations, and the need for border communities to participate in federal decision-making that affects their lives. 

  11. Diagnostic approaches for Rift Valley Fever

    Science.gov (United States)

    Disease outbreaks caused by arthropod-borne animal viruses (arboviruses) resulting in significant livestock and economic losses world-wide appear to be increasing. Rift Valley fever (RVF) virus (RVFV) is an important arbovirus that causes lethal disease in cattle, camels, sheep and goats in Sub-Saha...

  12. Unexpected Rift Valley fever outbreak, northern Mauritania.

    Science.gov (United States)

    El Mamy, Ahmed B O; Baba, Mohamed Ould; Barry, Yahya; Isselmou, Katia; Dia, Mamadou L; El Kory, Mohamed O B; Diop, Mariam; Lo, Modou Moustapha; Thiongane, Yaya; Bengoumi, Mohammed; Puech, Lilian; Plee, Ludovic; Claes, Filip; de La Rocque, Stephane; Doumbia, Baba

    2011-10-01

    During September-October 2010, an unprecedented outbreak of Rift Valley fever was reported in the northern Sahelian region of Mauritania after exceptionally heavy rainfall. Camels probably played a central role in the local amplification of the virus. We describe the main clinical signs (hemorrhagic fever, icterus, and nervous symptoms) observed during the outbreak.

  13. Reemergence of Rift Valley fever, Mauritania, 2010.

    Science.gov (United States)

    Faye, Ousmane; Ba, Hampathé; Ba, Yamar; Freire, Caio C M; Faye, Oumar; Ndiaye, Oumar; Elgady, Isselmou O; Zanotto, Paolo M A; Diallo, Mawlouth; Sall, Amadou A

    2014-02-01

    A Rift Valley fever (RVF) outbreak in humans and animals occurred in Mauritania in 2010. Thirty cases of RVF in humans and 3 deaths were identified. RVFV isolates were recovered from humans, camels, sheep, goats, and Culex antennatus mosquitoes. Phylogenetic analysis of isolates indicated a virus origin from western Africa.

  14. Pumpernickel Valley Geothermal Project Thermal Gradient Wells

    Energy Technology Data Exchange (ETDEWEB)

    Z. Adam Szybinski

    2006-01-01

    The Pumpernickel Valley geothermal project area is located near the eastern edge of the Sonoma Range and is positioned within the structurally complex Winnemucca fold and thrust belt of north-central Nevada. A series of approximately north-northeast-striking faults related to the Basin and Range tectonics are superimposed on the earlier structures within the project area, and are responsible for the final overall geometry and distribution of the pre-existing structural features on the property. Two of these faults, the Pumpernickel Valley fault and Edna Mountain fault, are range-bounding and display numerous characteristics typical of strike-slip fault systems. These characteristics, when combined with geophysical data from Shore (2005), indicate the presence of a pull-apart basin, formed within the releasing bend of the Pumpernickel Valley – Edna Mountain fault system. A substantial body of evidence exists, in the form of available geothermal, geological and geophysical information, to suggest that the property and the pull-apart basin host a structurally controlled, extensive geothermal field. The most evident manifestations of the geothermal activity in the valley are two areas with hot springs, seepages, and wet ground/vegetation anomalies near the Pumpernickel Valley fault, which indicate that the fault focuses the fluid up-flow. There has not been any geothermal production from the Pumpernickel Valley area, but it was the focus of a limited exploration effort by Magma Power Company. In 1974, the company drilled one exploration/temperature gradient borehole east of the Pumpernickel Valley fault and recorded a thermal gradient of 160oC/km. The 1982 temperature data from five unrelated mineral exploration holes to the north of the Magma well indicated geothermal gradients in a range from 66 to 249oC/km for wells west of the fault, and ~283oC/km in a well next to the fault. In 2005, Nevada Geothermal Power Company drilled four geothermal gradient wells, PVTG-1

  15. Babesiosis in Lower Hudson Valley, New York

    Centers for Disease Control (CDC) Podcasts

    2011-05-12

    This podcast discusses a study about an increase in babesiosis in the Lower Hudson Valley of New York state. Dr. Julie Joseph, Assistant Professor of Medicine at New York Medical College, shares details of this study.  Created: 5/12/2011 by National Center for Emerging Zoonotic and Infectious Diseases (NCEZID).   Date Released: 5/23/2011.

  16. Groundwater links between Kenyan Rift Valley lakes

    OpenAIRE

    Becht, Robert; Mwango, Fred; Muno, Fred Amstrong

    2006-01-01

    The series of lakes in the bottom of the Kenyan Rift valley are fed by rivers and springs. Based on the water balance, the relative positions determining the regional groundwater flow systems and the analysis of natural isotopes it can be shown that groundwater flows from lake Naivasha to lake Magadi, Elementeita, Nakuru and Bogoria.

  17. Rift Valley fever: A neglected zoonotic disease?

    Science.gov (United States)

    Rift Valley fever (RVF) is a serious viral disease of animals and humans in Africa and the Middle East that is transmitted by mosquitoes. First isolated in Kenya during an outbreak in 1930, subsequent outbreaks have had a significant impact on animal and human health, as well as national economies. ...

  18. Substance Abuse in the Rio Grande Valley.

    Science.gov (United States)

    Zavaleta, Anthony N.

    1979-01-01

    In the Mexican American barrios of Texas' Lower Rio Grande Valley, existence is complicated by the interactive forces of culture, society, and economy. These three factors act in unison to create an etiology of alcohol and drug use and abuse which is poorly understood by persons outside the barrio's grasp. (Author/NQ)

  19. Native grasses for rehabilitating Hunter Valley minesites

    Energy Technology Data Exchange (ETDEWEB)

    Huxtable, C. [NSW Department of Land and Water Conservation, NSW (Australia)

    1998-04-01

    Introduced plant species, particularly grasses, have long been used to rehabilitate mined land in Australia. Interest in using native species spawned a research project in the Hunter Valley which has demonstrated the suitability of certain native species for rehabilitation and put forward guidelines to enhance the chance of their successful establishment. 4 photos., 1 tab.

  20. 76 FR 39261 - Tennessee Valley Authority Procedures

    Science.gov (United States)

    2011-07-06

    ...). ACTION: Final rule. SUMMARY: The Tennessee Valley Authority is amending its regulations which currently.... 1301.63 Senior agency official. 1301.64 Original classification authority. 1301.65 Derivative... authority. Sec. 1301.65 Derivative classification. (a) In accordance with Part 2 of Executive Order...

  1. 27 CFR 9.210 - Lehigh Valley.

    Science.gov (United States)

    2010-04-01

    ... Section 9.210 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT...), Pennsylvania, 1979; (4) Carbon County, Pennsylvania, 1991; (5) Monroe County, Pennsylvania, 1980; (6... Valley viticultural area is located in portions of Lehigh, Northampton, Berks, Schuylkill, Carbon,...

  2. Potential hydrologic characterization wells in Amargosa Valley

    Energy Technology Data Exchange (ETDEWEB)

    Lyles, B.; Mihevc, T.

    1994-09-01

    More than 500 domestic, agricultural, and monitoring wells were identified in the Amargosa Valley. From this list, 80 wells were identified as potential hydrologic characterization wells, in support of the US Department of Energy (DOE) Underground Test Area/Remedial Investigation and Feasibility Study (UGTA/RIFS). Previous hydrogeologic studies have shown that groundwater flow in the basin is complex and that aquifers may have little lateral continuity. Wells located more than 10 km or so from the Nevada Test Site (NTS) boundary may yield data that are difficult to correlate to sources from the NTS. Also, monitoring well locations should be chosen within the guidelines of a hydrologic conceptual model and monitoring plan. Since these do not exist at this time, recompletion recommendations will be restricted to wells relatively close (approximately 20 km) to the NTS boundary. Recompletion recommendations were made for two abandoned agricultural irrigation wells near the town of Amargosa Valley (previously Lathrop Wells), for two abandoned wildcat oil wells about 10 km southwest of Amargosa Valley, and for Test Well 5 (TW-5), about 10 km east of Amargosa Valley.

  3. Off-grid in the Nemiah Valley

    Energy Technology Data Exchange (ETDEWEB)

    Swingler, Andrew [Xantrex Technology Inc., Vancouver (Canada); Colgate, George [Xeni Gwet' in Enterprise, Nemia Valley, BC (Canada)

    2009-07-01

    The people of the Xeni Gwet'in First National community of British Columbia's remote Nemiah Valley are pioneers of small off-grid photovoltaic power stations in Canada. Since 2006 the energy-progressive community has been testing two innovative PV-based technology applications. (orig.)

  4. Biogeochemical stoichiometry of Antarctic Dry Valley ecosystems

    Science.gov (United States)

    Barrett, J. E.; Virginia, R. A.; Lyons, W. B.; McKnight, D. M.; Priscu, J. C.; Doran, P. T.; Fountain, A. G.; Wall, D. H.; Moorhead, D. L.

    2007-03-01

    Among aquatic and terrestrial landscapes of the McMurdo Dry Valleys, Antarctica, ecosystem stoichiometry ranges from values near the Redfield ratios for C:N:P to nutrient concentrations in proportions far above or below ratios necessary to support balanced microbial growth. This polar desert provides an opportunity to evaluate stoichiometric approaches to understand nutrient cycling in an ecosystem where biological diversity and activity are low, and controls over the movement and mass balances of nutrients operate over 10-106 years. The simple organisms (microbial and metazoan) comprising dry valley foodwebs adhere to strict biochemical requirements in the composition of their biomass, and when activated by availability of liquid water, they influence the chemical composition of their environment according to these ratios. Nitrogen and phosphorus varied significantly in terrestrial and aquatic ecosystems occurring on landscape surfaces across a wide range of exposure ages, indicating strong influences of landscape development and geochemistry on nutrient availability. Biota control the elemental ratio of stream waters, while geochemical stoichiometry (e.g., weathering, atmospheric deposition) evidently limits the distribution of soil invertebrates. We present a conceptual model describing transformations across dry valley landscapes facilitated by exchanges of liquid water and biotic processing of dissolved nutrients. We conclude that contemporary ecosystem stoichiometry of Antarctic Dry Valley soils, glaciers, streams, and lakes results from a combination of extant biological processes superimposed on a legacy of landscape processes and previous climates.

  5. Sign Plan : Minnesota Valley National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Minnesota Valley NWR Sign Plan explains how signs are used on the Refuge to help guide and educate visitors. An inventory of current signs is given as well as a...

  6. Business plan Hatchery Facility Zambezi Valley, Mozambique

    NARCIS (Netherlands)

    Vernooij, A.G.; Wilschut, S.

    2015-01-01

    This business plan focuses on the establishment of a hatchery, one of the essential elements of a sustainable and profitable poultry meat value chain. There is a growing demand for poultry meat in the Zambezi Valley, and currently a large part of the consumed broilers comes from other parts of the c

  7. Treasure Valley Health Manpower and Education Profile.

    Science.gov (United States)

    Callen, John; And Others

    The profile is a concise description of the demographic and economic characteristics, existing health manpower employed, and health education programs for the Treasure Valley area of Idaho, one of seven surveyed in the Mountain States region (Idaho, Montana, Wyoming, and Nevada). The first section of the profile provides general population…

  8. 75 FR 43225 - Finding of No Significant Impact: San Diego-Tijuana Airport Cross Border Facility

    Science.gov (United States)

    2010-07-23

    ... Tuttle, U.S.-Mexico Border Affairs Coordinator, via e-mail at WHA-BorderAffairs@state.gov ; by phone at....gov/p/wha/rt/permit/ . SUPPLEMENTARY INFORMATION: The following is the text of the Finding of No...

  9. Comparative analysis of health systems on the triple border between Brazil, Colombia, and Peru

    National Research Council Canada - National Science Library

    Levino, Antonio; Carvalho, Eduardo Freese de

    2011-01-01

    ...; analyze the structure of the national health systems of these bordering nations; and assess the constraints and potential for integrating the local health systems along the triple Amazon border...

  10. Is Border Enforcement Effective? What We Know and What It Means

    National Research Council Canada - National Science Library

    Edward Alden

    2017-01-01

    For too long, the policy debate over border enforcement has been split between those who believe the border can be sealed against illegal entry by force alone, and those who believe that any effort...

  11. Groundwater Quality in Mura Valley (Slovenia)

    Science.gov (United States)

    Zajc Benda, T.; Souvent, P.; Bračič Železnik, B.; Čenčur Curk, B.

    2012-04-01

    Groundwater quality is one of the most important parameters in drinking water supply management. For safe drinking water supply, the quality of groundwater in the water wells on the recharge area has to be controlled. Groundwater quality data will be presented for one test area in the SEE project CC-WaterS (Climate Change and Impacts on Water Supply) Mura valley, which lies in the northeastern part of Slovenia. The Mura valley is a part of the Pannonian basin tectonic unit, which is filled with Tertiary and Quaternary gravel and sand sediments. The porous aquifer is 17 m thick in average and recharges from precipitation (70 %) and from surface waters (30 %). The aquifer is the main source of drinking water in the area for almost 53.000 inhabitants. Most of the aquifer lies beneath the agricultural area what represents the risk of groundwater quality. The major groundwater pollutants in the Mura valley are nitrates, atrazine, desethyl-atrazine, trichloroethane and tetrachloroethene. National groundwater quality monitoring is carried out twice a year, so some polluting events could be missed. The nitrate concentrations in the past were up to 140 mg/l. Concentration trends are decreasing and are now below 60 mg/l. Concentrations of atrazine and desethyl-atrazine, are decreasing as well and are below 0,1 µg/l. Trichloroethene and tetrachloroethene were detected downstream of main city in Mura valley, in the maximum concentrations of 280 μg/l in June 2005 (trichloroethene) and 880 μg/l in October 1997 (tetrachloroethene). So, it can be summarized that the trends for most pollutants in the Mura valley are decreasing, what is a good prediction for the future. Input estimation of the total nitrogen (N) (mineral and organic fertilizers) in the Mura valley shows, that the risk of leaching is enlarged in the areas, where the N input is larger than 250 kg/ha, this is at 6,3 % of all agricultural areas. Prediction for the period 2021-2050 indicates that the leaching of N

  12. Erosion of steepland valleys by debris flows

    Science.gov (United States)

    Stock, J.D.; Dietrich, W.E.

    2006-01-01

    Episodic debris flows scour the rock beds of many steepland valleys. Along recent debris-flow runout paths in the western United States, we have observed evidence for bedrock lowering, primarily by the impact of large particles entrained in debris flows. This evidence may persist to the point at which debris-flow deposition occurs, commonly at slopes of less than ???0.03-0.10. We find that debris-flow-scoured valleys have a topographic signature that is fundamentally different from that predicted by bedrock river-incision models. Much of this difference results from the fact that local valley slope shows a tendency to decrease abruptly downstream of tributaries that contribute throughgoing debris flows. The degree of weathering of valley floor bedrock may also decrease abruptly downstream of such junctions. On the basis of these observations, we hypothesize that valley slope is adjusted to the long-term frequency of debris flows, and that valleys scoured by debris flows should not be modeled using conventional bedrock river-incision laws. We use field observations to justify one possible debris-flow incision model, whose lowering rate is proportional to the integral of solid inertial normal stresses from particle impacts along the flow and the number of upvalley debris-flow sources. The model predicts that increases in incision rate caused by increases in flow event frequency and length (as flows gain material) downvalley are balanced by rate reductions from reduced inertial normal stress at lower slopes, and stronger, less weathered bedrock. These adjustments lead to a spatially uniform lowering rate. Although the proposed expression leads to equilibrium long-profiles with the correct topographic signature, the crudeness with which the debris-flow dynamics are parameterized reveals that we are far from a validated debris-flow incision law. However, the vast extent of steepland valley networks above slopes of ???0.03-0.10 illustrates the need to understand debris

  13. Literacies Crossing Borders: Transfronterizo Literacy Practices of Students in a Dual Language Program on the USA-Mexico Border

    Science.gov (United States)

    de la Piedra, Maria Teresa; Araujo, Blanca E.

    2012-01-01

    Research on transnational literacies has generally focused on youth who live in one country and communicate using digital literacies across national boundaries. Our work contributes to this literature by providing a view of transnational literacies that are unique to the USA-Mexico border region. The students in this ethnographic study navigate…

  14. The utopia of cross-border regions : territorial transformation and cross-border governance on Espace Mont-Blanc

    NARCIS (Netherlands)

    Lissandrello, Enza

    2006-01-01

    The theories on globalisation, internationalisation, post-nationalism or trans-nationalism dismiss the concept of 'territoriality' within the paradigm of the beyond the 'nation-state' sovereignty. In this work, a diverse idea is sustained: borders and territoriality are not just lost terms within th

  15. Theory-Building in Border Studies: The View from North America

    OpenAIRE

    Payan, Tony

    2014-01-01

    The sub-discipline of border studies has struggled to construct theories that can render explanatory and predictive models. Most work on border studies has been largely confined to descriptive inference under the justification that it is nearly impossible to theorize such multidisciplinary and geographically scattered phenomenon as borders and borderlands. In this article, I argue that theorizing in border studies would go a long way if much more attention were paid to methods instead of focu...

  16. Effects of Vegetated Field Borders on Arthropods in Cotton Fields in Eastern North Carolina

    OpenAIRE

    Outward, Randy; Sorenson, Clyde E.; Bradley, J. R.

    2008-01-01

    The influence, if any, of 5m wide, feral, herbaceous field borders on pest and beneficial arthropods in commercial cotton, Gossypium hirsutum (L.) (Malvales: Malvaceae), fields was measured through a variety of sampling techniques over three years. In each year, 5 fields with managed, feral vegetation borders and five fields without such borders were examined. Sampling was stratified from the field border or edge in each field in an attempt to elucidate any edge effects that might have occurr...

  17. Force Multiplier: The Military’s Future Role in U.S. Border Protection

    Science.gov (United States)

    2013-03-01

    1994 North American Free Trade Agreement ( NAFTA ), promoted the expansion of free trade between Canada , the United States, and Mexico. The most recent...border in both the United States and Canada .15 Historically, the northern border yields significantly lower numbers of illegal incursions than...States from Canada than from Mexico.20 Southwestern Border Region Spanning approximately 2,000 miles, the southwest border has assumed an even

  18. Strategic environmental management of air in Mexicali-Imperial border.

    Directory of Open Access Journals (Sweden)

    José María Ramos García

    2011-07-01

    Full Text Available This article analyzes the importance of an approach on local environmental management regarding the quality of air in the Mexicali and Imperial Valley region. The paper discusses that the absence of a strategic approach in the environmental local policy will enhance the air pollution in the region

  19. Valley-dependent beam manipulators based on photonic graphene

    Science.gov (United States)

    Deng, Fu-Sheng; Sun, Yong; Dong, Li-Juan; Liu, Yan-Hong; Shi, Yun-Long

    2017-02-01

    Trigonal warping distortion in energy band lifts the degeneracy of two valleys (K and K' points) of graphene. In this situation, electron transport becomes valley dependent, which can be used to design the valley beam splitter, collimator, or guiding device. Here, valley-dependent beam manipulators are designed based on artificial photonic graphene. In this scheme, the finite-size artificial photonic graphene is intentionally designed to realize the novel device functionalities. This kind of valley-dependent beam manipulators can work at an arbitrary range of electromagnetic waves from microwave to visible light. It potentially paves the way for the application of photonic graphene in future integrated photonic devices.

  20. Toward a Pedagogy of Border Thinking: Building on Latin@ Students' Subaltern Knowledge

    Science.gov (United States)

    Cervantes-Soon, Claudia G.; Carrillo, Juan F.

    2016-01-01

    Based on Walter Mignolo's (2000) notion of border thinking, that is, the subaltern knowledge generated from the exterior borders of the modern/colonial world system, this article extends current conceptual frameworks for the implementation of a decolonizing border pedagogy with Latin@ students in secondary schools. In particular, Cervantes-Soon…

  1. Inverting the Telescope on Borders that Matter: Conversations in Café Europa

    DEFF Research Database (Denmark)

    Andersen, Dorte Jagetic; Kramsch, Olivier Thomas; Sandberg, Marie

    2015-01-01

    This article develops a new critical comparative lens for the study of European borders, which displays bordering processes less as territorialized state-spaces than spatio-temporal assemblages. Taking the multiplicity and historicity of European borders into account while simultaneously allowing...

  2. Deploying drones in policing European borders : constraints and challenges for data protection and human rights

    NARCIS (Netherlands)

    Marin, Luisa; Krajcíková, K.; Zavrsnik, A.

    2016-01-01

    The chapter explores the challenges underlying the policy choice of deploying dronetechnology in the area of border surveillance, with specific reference to the surveillance of European Union (EU) Member States’ external southern borders. Border surveillance is one of the top priorities of the

  3. 75 FR 61508 - Agency Information Collection Activities: Canadian Border Boat Landing Permit (CBP Form I-68)

    Science.gov (United States)

    2010-10-05

    ... Landing Permit (CBP Form I-68) AGENCY: U.S. Customs and Border Protection (CBP), Department of Homeland... concerning the Canadian Border Boat Landing Permit (Form I- ] 68). This request for comment is being made... Form I-68. Abstract: The Canadian Border Boat Landing Permit (CBP Form I-68) allows...

  4. 78 FR 73875 - Agency Information Collection Activities: Canadian Border Boat Landing Permit (CBP Form I-68)

    Science.gov (United States)

    2013-12-09

    ... Landing Permit (CBP Form I-68) AGENCY: U.S. Customs and Border Protection (CBP), Department of Homeland... requirement concerning the Canadian Border Boat Landing Permit (Form I-68). This request for comment is being... Form I-68. Abstract: The Canadian Border Boat Landing Permit (CBP Form I-68) allows...

  5. 38 CFR 3.17 - Disability and death pension; Mexican border period and later war periods.

    Science.gov (United States)

    2010-07-01

    ... pension; Mexican border period and later war periods. 3.17 Section 3.17 Pensions, Bonuses, and Veterans... Compensation General § 3.17 Disability and death pension; Mexican border period and later war periods. In... service which began before and extended into the Mexican border period or ended during World War I,...

  6. Changing Destinations: Ideal Attraction and Actual Movement of Cross-Border Tertiary Students from Mainland China

    Science.gov (United States)

    Ghazarian, Peter G.

    2014-01-01

    Globalization has driven growth in the market for cross-border students. Mainland China, with a burgeoning economy and the largest national population, has become an important source of cross-border students. This study identifies ideal attraction in mainland China to destinations for cross-border tertiary education, as expressed by ideal first…

  7. 47 CFR 73.504 - Channel assignments in the Mexican border area.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Channel assignments in the Mexican border area... assignments in the Mexican border area. (a) NCE-FM stations within 199 miles (320 km) of the United States-Mexican border shall comply with the separation requirements and other provisions of the...

  8. 40 CFR 81.99 - New Mexico Southern Border Intrastate Air Quality Control Region.

    Science.gov (United States)

    2010-07-01

    ... Designation of Air Quality Control Regions § 81.99 New Mexico Southern Border Intrastate Air Quality Control Region. The Arizona-New Mexico Southern Border Interstate Air Quality Control Region has been renamed the New Mexico Southern Border Intrastate Air Quality Control Region and has been revised to consist...

  9. Deploying drones in policing European borders : constraints and challenges for data protection and human rights

    NARCIS (Netherlands)

    Marin, Luisa; Krajcíková, K.; Zavrsnik, A.

    2016-01-01

    The chapter explores the challenges underlying the policy choice of deploying dronetechnology in the area of border surveillance, with specific reference to the surveillance of European Union (EU) Member States’ external southern borders. Border surveillance is one of the top priorities of the Membe

  10. Deploying drones in policing European borders: constraints and challenges for data protection and human rights

    NARCIS (Netherlands)

    Marin, L.; Krajcíková, K.; Zavrsnik, A.

    2016-01-01

    The chapter explores the challenges underlying the policy choice of deploying dronetechnology in the area of border surveillance, with specific reference to the surveillance of European Union (EU) Member States’ external southern borders. Border surveillance is one of the top priorities of the Membe

  11. Graphene Nanobubbles as Valley Filters and Beam Splitters

    Science.gov (United States)

    Settnes, Mikkel; Power, Stephen R.; Brandbyge, Mads; Jauho, Antti-Pekka

    2016-12-01

    The energy band structure of graphene has two inequivalent valleys at the K and K' points of the Brillouin zone. The possibility to manipulate this valley degree of freedom defines the field of valleytronics, the valley analogue of spintronics. A key requirement for valleytronic devices is the ability to break the valley degeneracy by filtering and spatially splitting valleys to generate valley polarized currents. Here, we suggest a way to obtain valley polarization using strain-induced inhomogeneous pseudomagnetic fields (PMFs) that act oppositely on the two valleys. Notably, the suggested method does not involve external magnetic fields, or magnetic materials, unlike previous proposals. In our proposal the strain is due to experimentally feasible nanobubbles, whose associated PMFs lead to different real space trajectories for K and K' electrons, thus allowing the two valleys to be addressed individually. In this way, graphene nanobubbles can be exploited in both valley filtering and valley splitting devices, and our simulations reveal that a number of different functionalities are possible depending on the deformation field.

  12. Spatial valley separation in strained graphene pn junction

    Science.gov (United States)

    Tian, HongYu; Wang, Jun

    2017-09-01

    Valleytronics in analogy to spintronics aims to use the electron valley degree of freedom to carry and manipulate information, and one of urgent tasks in this field is to generate valley-polarized electrons. In this work, we propose using the electron focusing effect in a strained graphene pn junction to separate valleys spatially through a beam of valley-unpolarized electrons, since the strain-induced pseudo-gauge potentials are opposite for K and K^\\prime valleys and severely affect the trajectories of K and K^\\prime electron propagation. We numerically simulate this valley-separated Veselago lens effect in a lattice model and demonstrate that pseudo-gauge potentials can efficiently control valley separation patterns.

  13. Education Outreach Associated with Technology Transfer in a Colonia of South Texas: Green Valley Farms Science and Space Club for Middle School Aged Children in Green Valley Farms, San Benito, Texas

    Science.gov (United States)

    Potess, Marla D.; Rainwater, Ken; Muirhead, Dean

    2004-01-01

    Texas colonias are unincorporated subdivisions characterized by inadequate water and wastewater infrastructure, inadequate drainage and road infrastructure, substandard housing, and poverty. Since 1989 the Texas Legislature has implemented policies to halt further development of colonias and to address water and wastewater infrastructure needs in existing and new colonias along the border with Mexico. Government programs and non-government and private organization projects aim to address these infrastructure needs. Texas Tech University's Water Resources Center demonstrated the use of alternative on-site wastewater treatment in the Green Valley Farms colonia, San Benito, Texas. The work in Green Valley Farms was a component of a NASA-funded project entitled Evaluation of NASA's Advanced Life Support Integrated Water Recovery System for Non-Optimal Conditions and Terrestrial Applications. Two households within the colonia are demonstration sites for constructed wetlands. A colonia resident and activist identified educational opportunities for colonia children as a primary goal for many colonia residents. Colonia parents view education as the door to opportunity and escape from poverty for their children. The educational outreach component of the project in Green Valley Farms was a Science and Space Club for middle-school age students. Involved parents, schoolteachers, and school administrators enthusiastically supported the monthly club meetings and activities. Each month, students participated in interactive learning experiences about water use and reuse in space and on earth. Activities increased knowledge and interest in water resource issues and in science and engineering fields. The Institute for the Development and Enrichment of Advanced Learners (IDEAL) at Texas Tech University provided full scholarships for five students from Green Valley Farms to attend the Shake Hands With Your Future camp at Texas Tech University in June 2003. The educational outreach

  14. Education Outreach Associated with Technology Transfer in a Colonia of South Texas: Green Valley Farms Science and Space Club for Middle School Aged Children in Green Valley Farms, San Benito, Texas

    Science.gov (United States)

    Potess, Marla D.; Rainwater, Ken; Muirhead, Dean

    2004-01-01

    Texas colonias are unincorporated subdivisions characterized by inadequate water and wastewater infrastructure, inadequate drainage and road infrastructure, substandard housing, and poverty. Since 1989 the Texas Legislature has implemented policies to halt further development of colonias and to address water and wastewater infrastructure needs in existing and new colonias along the border with Mexico. Government programs and non-government and private organization projects aim to address these infrastructure needs. Texas Tech University's Water Resources Center demonstrated the use of alternative on-site wastewater treatment in the Green Valley Farms colonia, San Benito, Texas. The work in Green Valley Farms was a component of a NASA-funded project entitled Evaluation of NASA's Advanced Life Support Integrated Water Recovery System for Non-Optimal Conditions and Terrestrial Applications. Two households within the colonia are demonstration sites for constructed wetlands. A colonia resident and activist identified educational opportunities for colonia children as a primary goal for many colonia residents. Colonia parents view education as the door to opportunity and escape from poverty for their children. The educational outreach component of the project in Green Valley Farms was a Science and Space Club for middle-school age students. Involved parents, schoolteachers, and school administrators enthusiastically supported the monthly club meetings and activities. Each month, students participated in interactive learning experiences about water use and reuse in space and on earth. Activities increased knowledge and interest in water resource issues and in science and engineering fields. The Institute for the Development and Enrichment of Advanced Learners (IDEAL) at Texas Tech University provided full scholarships for five students from Green Valley Farms to attend the Shake Hands With Your Future camp at Texas Tech University in June 2003. The educational outreach

  15. Contributors to ozone episodes in three US/Mexico border twin-cities.

    Science.gov (United States)

    Shi, Chune; Fernando, H J S; Yang, Jie

    2009-09-01

    The Process Analysis tools of the Community Multiscale Air Quality (CMAQ) modeling system together with back-trajectory analysis were used to assess potential contributors to ozone episodes that occurred during June 1-4, 2006, in three populated U.S.-Mexico border twin cities: San Diego/Tijuana, Imperial/Mexicali and El Paso/Ciudad Juárez. Validation of CMAQ output against surface ozone measurements indicates that the predictions are acceptable with regard to commonly recommended statistical standards and comparable to other reported studies. The mean normalized bias test (MNBT) and mean normalized gross error (MNGE) for hourly ozone fall well within the US EPA suggested range of +/-15% and 35%, respectively, except MNBT for El Paso. The MNBTs for maximum 8-h average ozone are larger than those for hourly ozone, but all the simulated maximum 8-h average ozone are within a factor of 2 of those measured in all three regions. The process and back-trajectory analyses indicate that the main sources of daytime ground-level ozone are the local photochemical production and regional transport. By integrating the effects of each process over the depth of the daytime planetary boundary layer (PBL), it is found that in the San Diego area (SD), chemistry and vertical advection contributed about 36%/48% and 64%/52% for June 2 and 3, respectively. This confirms the previous finding that high-altitude regional transport followed by fumigation contributes significantly to ozone in SD. The back-trajectory analysis shows that this ozone was mostly transported from the coastal area of southern California. For the episodes in Imperial Valley and El Paso, respectively, ozone was transported from the coastal areas of southern California and Mexico and from northern Texas and Oklahoma.

  16. Geomorphic development and Middle Stone Age archaeology of the Lower Cunene River, Namibia-Angola Border

    Science.gov (United States)

    Nicoll, K.

    2010-06-01

    During geomorphic reconnaissance of the Lower Cunene River near the reach of Serra Cafema, a significant accumulation of Middle Stone Age artifacts was discovered along the Namibia-Angolan border. The archaeological site is downstream of the Marienfluss-Hartmann Valley and lies along the eastern perimeter of the hyperarid Cunene erg (sandsea). Within the study area, the Cunene River is a bedrock anabranching - mixed bedrock-alluvial anabranching system with a morphology that is strongly controlled by lithology and structure and a hydrology dominated by tropical rainfall in the headwaters. A 5 m high alluvial terrace along the left bank of the perennial river is mantled with a surface lag of cobbles and gravels that includes MSA lithics. More than 30 artifacts are preserved in this open-air context. Finds include quartzite flakes, cores, and Levallois-Mousterian points with varying degrees of edge abrasion and varnish; these appear to be the first Levallois-Mousterian points found in this region of Africa. Since the archaeology of this region is poorly known, these cultural assemblages enable initial correlations across southern Africa. A replicate OSL-SAR date ˜220 kyr provides initial age constraints on a sand preserved within the cobble-boulder terrace fill, and constrains a maximum age for the overlying archaeological assemblage. This is the first MSA site in northern Namibia in direct stratigraphic context with a securely dated unit. The artifact assemblage underscores the importance of riparian corridors in reconstructing hominin behaviours during the Middle Pleistocene, the time frame marked by the first appearance and the dispersal of the modern human species Homo sapiens.

  17. Post-cultural stand dynamics in an abandoned chestnut coppice at its ecological border

    Directory of Open Access Journals (Sweden)

    2006-01-01

    Full Text Available Until the be­ginning of the last century, chestnut has played an important role as staple food and primary wood source. In many cases it was cultivated at the border of its ecological limits where it was planted by man in place of the original and more site-adapted tree species. However, with the abandonment of the rural activities, ma­nagement of chestnut forests was progressively left starting from more marginal areas, usually occupied by coppice stands. After the interruption of the traditional coppice management system (usual rotation periods of 10-25 years, natural intra- and interspecific competition dynamics have become the driving force of the stand evolution. This may lead to dramatic changes in both structure and species composition of the stands. The aim of this study is to analyse the post-cultural evolution of an abandoned chestnut coppice in the Pesio Valley (Piedmont, Italy in order to highlight the competition among different "basic silvi­cultural components" of the forest using a dendroecological approach. The "basic silvicultural components" are intended as the elements defined as groups of trees of the stand that have similar features such as silvi­culturally relevant attributes: species (chestnut, beech, fir, origin (seed, sprout and cultural age and function (standard/reserve, maiden, shoot, regeneration, dead tree. The mean growth curves of the compo­nents show the different fitness of each category. From a general point of view, the beech and fir components show a better competitive potential in comparison with chestnut. Among chestnut components, maidens from seeds reveal a better growth trend compared to coppice shoots and standards.

  18. Buried Quaternary Valleys In NW Europe - Aquifers and Drilling Hazards

    Science.gov (United States)

    Huuse, M.; Lykke-Andersen, H.; Piotrowski, J.

    Buried Quaternary valleys are extremely widespread in the formerly glaciated, low- land areas of NW Europe (Huuse &Lykke-Andersen 2000, Fig. 4). The valleys may be several hundred metres deep, some kilometres across and few to several tens of kilometres long. Most of the deep valleys have irregular length profiles with sills and basins, unlike standard subaerial river systems. We interpret these as overdeepened valleys, formed mainly by subglacial meltwater erosion. Buried valleys located on- shore often provide sheltered reservoirs of clean groundwater, and much attention is presently focused on locating onshore valleys and quantifying their potential as groundwater aquifers. In nearshore areas, buried valleys may be a risk factor by pro- viding pathways of salt-water intrusion of onshore groundwater aquifers. Far offshore, buried valleys are located in the shallow subsurface above the prolific oil and gas fields of the central North Sea. Here, the valleys pose a risk for drilling operations by hosting shallow gas and potentially unstable sediments. The central North Sea is now largely covered by 3D seismic data, which often image the buried valleys in a level of de- tail much greater than that available onshore. Hence offshore valleys imaged by 3D seismic data may be used as analogues for groundwater reservoirs onshore NW Eu- rope. Here, we present examples of buried valleys from onshore, nearshore and far offshore locations, to illustrate how genetically and morphologically identical valleys may benefit or hamper the exploitation of subsurface accummulations of groundwater and hydrocarbons. Huuse, M. &Lykke-Andersen, H. 2000. Buried Quaternary valleys in the eastern Dan- ish North Sea: morphology and origin. Quaternary Science Reviews 19, 1233-1253.

  19. Effects of vegetated field borders on arthropods in cotton fields in eastern North Carolina.

    Science.gov (United States)

    Outward, Randy; Sorenson, Clyde E; Bradley, J R

    2008-01-01

    The influence, if any, of 5m wide, feral, herbaceous field borders on pest and beneficial arthropods in commercial cotton, Gossypium hirsutum (L.) (Malvales: Malvaceae), fields was measured through a variety of sampling techniques over three years. In each year, 5 fields with managed, feral vegetation borders and five fields without such borders were examined. Sampling was stratified from the field border or edge in each field in an attempt to elucidate any edge effects that might have occurred. Early season thrips populations appeared to be unaffected by the presence of a border. Pitfall sampling disclosed no differences in ground-dwelling predaceous arthropods but did detect increased populations of crickets around fields with borders. Cotton aphid (Aphis gossypii Glover) (Hemiptera: Aphididae) populations were too low during the study to adequately assess border effects. Heliothines, Heliothis virescens (F.) and Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae), egg numbers and damage rates were largely unaffected by the presence or absence of a border, although in one instance egg numbers were significantly lower in fields with borders. Overall, foliage-dwelling predaceous arthropods were somewhat more abundant in fields with borders than in fields without borders. Tarnished plant bugs, Lygus lineolaris (Palisot de Beauvois) (Heteroptera: Miridae) were significantly more abundant in fields with borders, but stink bugs, Acrosternum hilare (Say), and Euschistus servus (Say) (Hemiptera: Pentatomidae) numbers appeared to be largely unaffected by border treatment. Few taxa clearly exhibited distributional edge effects relative to the presence or absence of border vegetation. Field borders like those examined in this study likely will have little impact on insect pest management in cotton under current insect management regimens.

  20. Border collisions inside the stability domain of a fixed point

    Science.gov (United States)

    Avrutin, Viktor; Zhusubaliyev, Zhanybai T.; Mosekilde, Erik

    2016-05-01

    Recent studies on a power electronic DC/AC converter (inverter) have demonstrated that such systems may undergo a transition from regular dynamics (associated with a globally attracting fixed point of a suitable stroboscopic map) to chaos through an irregular sequence of border-collision events. Chaotic dynamics of an inverter is not suitable for practical purposes. However, the parameter domain in which the stroboscopic map has a globally attracting fixed point has generally been considered to be uniform and suitable for practical use. In the present paper we show that this domain actually has a complicated interior structure formed by boundaries defined by persistence border collisions. We describe a simple approach that is based on symbolic dynamics and makes it possible to detect such boundaries numerically. Using this approach we describe several regions in the parameter space leading to qualitatively different output signals of the inverter although all associated with globally attracting fixed points of the corresponding stroboscopic map.