73 research outputs found

    The Impact of Sovereign Wealth Funds on the Regulation of Foreign Direct Investment in Strategic Industries: A Comparative View

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    Investments by sovereign wealth funds (\u27SWFs\u27) - pools of capital accumulated by and under the control of sovereign states, mostly from the Persian Gulf and East Asia - in European and North American companies have changed dramatically both in scope and in nature in the last few years. In terms of scope, SWFs are estimated to currently control USD2−3trillioninassets−morethanallhedgefundsandprivateequityfundscombined−andwithinthenextfiveyears,theyareexpectedtodirectUSD2-3 trillion in assets - more than all hedge funds and private equity funds combined - and within the next five years, they are expected to direct USD6-10 trillion in assets.\u27 In terms of the nature of the investments made, these funds have recently moved from largely small-scale, low-key, passive investments to larger, higher-profile, more active investments. Given the nature of the investors in question ie, sovereigns, these recent changes have stirred up the long-standing debate between protectionism versus free-market approaches towards foreign direct investment (\u27FDI\u27) especially as it relates to industries that are viewed as \u27strategic\u27. These dramatic changes, the effects of which on the global economy and, indeed, international affairs, are only starting to become clear, have propelled states with screening mechanisms for the review of such investments to re-evaluate and bolster these mechanisms. In the last two years eg, at least 11 major countries, which together accounted for over 40 per cent of all world inflows of FDI in 2006, have approved or are seriously considering new laws that would either restrict certain types of FDI or expand government oversight of certain cross-border investments. Most of these regulatory changes have been justified on the basis of protecting national security or safeguarding so-called strategic industries. This article examines the screening mechanisms in place, recently changed or currently under consideration by the United States, France and India. While by no means an exhaustive or even representative survey, this sample highlights how different jurisdictions apply varying degrees of scrutiny to FDI in an age of increased sovereign-directed investments. As such, it illustrates some of the key issues an investor and its advisers may wish to examine when contemplating a potentially sensitive investment such as the role of the executive in the review, the availability of judicial review in national or transnational courts, the definition of key concepts such as foreign investment/investor, and the sectors regarded as sensitive. foreign investment/investor, and the sectors regarded as sensitive. For each jurisdiction, the article examines: (1) the governing law and recent changes thereto; (2) the screening mechanisms including (i) the composition of the review body, (ii) key concepts such as \u27foreign investment\u27, (iii) the industries subject to review, and (iv) review timelines and other key features of the review process; and (3) notable recent deals or public controversies

    Layout of Graphs with Bounded Tree-Width

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    A \emph{queue layout} of a graph consists of a total order of the vertices, and a partition of the edges into \emph{queues}, such that no two edges in the same queue are nested. The minimum number of queues in a queue layout of a graph is its \emph{queue-number}. A \emph{three-dimensional (straight-line grid) drawing} of a graph represents the vertices by points in Z3\mathbb{Z}^3 and the edges by non-crossing line-segments. This paper contributes three main results: (1) It is proved that the minimum volume of a certain type of three-dimensional drawing of a graph GG is closely related to the queue-number of GG. In particular, if GG is an nn-vertex member of a proper minor-closed family of graphs (such as a planar graph), then GG has a O(1)×O(1)×O(n)O(1)\times O(1)\times O(n) drawing if and only if GG has O(1) queue-number. (2) It is proved that queue-number is bounded by tree-width, thus resolving an open problem due to Ganley and Heath (2001), and disproving a conjecture of Pemmaraju (1992). This result provides renewed hope for the positive resolution of a number of open problems in the theory of queue layouts. (3) It is proved that graphs of bounded tree-width have three-dimensional drawings with O(n) volume. This is the most general family of graphs known to admit three-dimensional drawings with O(n) volume. The proofs depend upon our results regarding \emph{track layouts} and \emph{tree-partitions} of graphs, which may be of independent interest.Comment: This is a revised version of a journal paper submitted in October 2002. This paper incorporates the following conference papers: (1) Dujmovic', Morin & Wood. Path-width and three-dimensional straight-line grid drawings of graphs (GD'02), LNCS 2528:42-53, Springer, 2002. (2) Wood. Queue layouts, tree-width, and three-dimensional graph drawing (FSTTCS'02), LNCS 2556:348--359, Springer, 2002. (3) Dujmovic' & Wood. Tree-partitions of kk-trees with applications in graph layout (WG '03), LNCS 2880:205-217, 200

    The implementation of a shared reading programme within a university : a case study

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    Based on research into the benefits of involvement in reading for pleasure and the operation in the US of pre-arrival shared reading schemes for those about to embark on a university education, both within the context of wider research into how to engage newly arrived students in their institution, an exploration was made of the likely response to such a shared reading scheme within a London university. A representative sample of current first years were asked about their how they spent their leisure time, their attitudes towards and involvement in reading for pleasure and their reactions to such a potential scheme. The findings were that more reading for pleasure was taking part than had been anticipated, that students were generally keen to become more involved in reading and that a shared reading scheme would be welcomed by the majority of students. The decisions made on the basis of the outcomes are discussed, along with recommendations for future associated research

    Lake regionalization and diatom metacommunity structuring in tropical South America

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    Lakes and their topological distribution across Earth’s surface impose ecological and evolutionary constraints on aquatic metacommunities. In this study, we group similar lake ecosystems as metacommunity units influencing diatom community structure. We assembled a database of 195 lakes from the tropical Andes and adjacent lowlands (8°N–30°S and 58–79°W) with associated environmental predictors to examine diatom metacommunity patterns at two different levels: taxon and functional (deconstructed species matrix by ecological guilds). We also derived spatial variables that inherently assessed the relative role of dispersal. Using complementary multivariate statistical techniques (principal component analysis, cluster analysis, nonmetric multidimensional scaling, Procrustes, variance partitioning), we examined diatom–environment relationships among different lake habitats (sediment surface, periphyton, and plankton) and partitioned community variation to evaluate the influence of niche-and dispersal-based assembly processes in diatom metacommunity structure across lake clusters. The results showed a significant association between geographic clusters of lakes based on gradients of climate and landscape configuration and diatom assemblages. Six lake clusters distributed along a latitudinal gradient were identified as functional metacommunity units for diatom communities. Variance partitioning revealed that dispersal mechanisms were a major contributor to diatom metacommunity structure, but in a highly context-dependent fashion across lake clusters. In the Andean Altiplano and adjacent lowlands of Bolivia, diatom metacommunities are niche assembled but constrained by either dispersal limitation or mass effects, resulting from area, environmental heterogeneity, and ecological guild relationships. Topographic heterogeneity played an important role in structuring planktic diatom metacommunities. We emphasize the value of a guild-based metacommunity model linked to dispersal for elucidating mechanisms underlying latitudinal gradients in distribution. Our findings reveal the importance of shifts in ecological drivers across climatic and physiographically distinct lake clusters, providing a basis for comparison of broad-scale community gradients in lake-rich regions elsewhere. This may help guide future research to explore evolutionary constraints on the rich Neotropical benthic diatom species pool

    Lake Regionalization and Diatom Metacommunity Structuring in Tropical South America

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    Lakes and their topological distribution across Earth\u27s surface impose ecological and evolutionary constraints on aquatic metacommunities. In this study, we group similar lake ecosystems as metacommunity units influencing diatom community structure. We assembled a database of 195 lakes from the tropical Andes and adjacent lowlands (8°N–30°S and 58–79°W) with associated environmental predictors to examine diatom metacommunity patterns at two different levels: taxon and functional (deconstructed species matrix by ecological guilds). We also derived spatial variables that inherently assessed the relative role of dispersal. Using complementary multivariate statistical techniques (principal component analysis, cluster analysis, nonmetric multidimensional scaling, Procrustes, variance partitioning), we examined diatom–environment relationships among different lake habitats (sediment surface, periphyton, and plankton) and partitioned community variation to evaluate the influence of niche‐ and dispersal‐based assembly processes in diatom metacommunity structure across lake clusters. The results showed a significant association between geographic clusters of lakes based on gradients of climate and landscape configuration and diatom assemblages. Six lake clusters distributed along a latitudinal gradient were identified as functional metacommunity units for diatom communities. Variance partitioning revealed that dispersal mechanisms were a major contributor to diatom metacommunity structure, but in a highly context‐dependent fashion across lake clusters. In the Andean Altiplano and adjacent lowlands of Bolivia, diatom metacommunities are niche assembled but constrained by either dispersal limitation or mass effects, resulting from area, environmental heterogeneity, and ecological guild relationships. Topographic heterogeneity played an important role in structuring planktic diatom metacommunities. We emphasize the value of a guild‐based metacommunity model linked to dispersal for elucidating mechanisms underlying latitudinal gradients in distribution. Our findings reveal the importance of shifts in ecological drivers across climatic and physiographically distinct lake clusters, providing a basis for comparison of broad‐scale community gradients in lake‐rich regions elsewhere. This may help guide future research to explore evolutionary constraints on the rich Neotropical benthic diatom species pool

    Realizability of Polytopes as a Low Rank Matrix Completion Problem

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    This article gives necessary and sufficient conditions for a relation to be the containment relation between the facets and vertices of a polytope. Also given here, are a set of matrices parameterizing the linear moduli space and another set parameterizing the projective moduli space of a combinatorial polytope

    Panel 2: Types of Litigation Funding

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    This is a transcript from the second panel of the 2015 NYU School of Law conference: Litigation Funding: The Basics and Beyond. Panel Two The second panel will build on the basics. Participants will explain and discuss different subcategories of funding, each of which may raise different conceptual, practical and/or regulatory concerns. Panelists: Geoffrey Miller, New York University School of Law (Moderator) Maya Steinitz, University of Iowa College of Law Joshua Schwadron, Founder and CEO, Mighty Bradley Wendel, Cornell Law School Michael G. Faure, Maastricht University & Rotterdam University, the Netherlands Jef De Mot, Ghent University Travis Lenkner, Gerchen Keller Capita

    Women physicists in Canada

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    Publisher's version/PDFIn recent years the overall climate for women in academia in Canada has improved. Efforts are being made to attract girls to science at a young age. The enrollment of women across undergraduate and graduate programs in the physical sciences has increased gradually in the past decade, with a sharp increase at the graduate level. In light of a large number of upcoming retirements in academic positions, the presence of women in academia will continue to grow, supported by efforts to ensure equity in academia made by government agencies, academic institutions, and faculty associations

    Magnetic character of a large continental transform : an aeromagnetic survey of the Dead Sea Fault

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    Author Posting. © American Geophysical Union, 2007. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry Geophysics Geosystems 8 (2007): Q07005, doi:10.1029/2007GC001582.New high-resolution airborne magnetic (HRAM) data along a 120-km-long section of the Dead Sea Transform in southern Jordan and Israel shed light on the shallow structure of the fault zone and on the kinematics of the plate boundary. Despite infrequent seismic activity and only intermittent surface exposure, the fault is delineated clearly on a map of the first vertical derivative of the magnetic intensity, indicating that the source of the magnetic anomaly is shallow. The fault is manifested by a 10–20 nT negative anomaly in areas where the fault cuts through magnetic basement and by a <5 nT positive anomaly in other areas. Modeling suggests that the shallow fault is several hundred meters wide, in agreement with other geophysical and geological observations. A magnetic expression is observed only along the active trace of the fault and may reflect alteration of magnetic minerals due to fault zone processes or groundwater flow. The general lack of surface expression of the fault may reflect the absence of surface rupture during earthquakes. The magnetic data also indicate that unlike the San Andreas Fault, the location of this part of the plate boundary was stable throughout its history. Magnetic anomalies also support a total left-lateral offset of 105–110 km along the plate boundary, as suggested by others. Finally, despite previous suggestions of transtensional motion along the Dead Sea Transform, we did not identify any igneous intrusions related to the activity of this fault segment.The project was funded by U.S.-AID Middle Eastern Regional Cooperation grant TA-MOU-01-M21-012

    Examining the efficacy of localised gemcitabine therapy for the treatment of pancreatic cancer using a hybrid agent-based model

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    The prognosis for pancreatic ductal adenocarcinoma (PDAC) patients has not significantly improved in the past 3 decades, highlighting the need for more effective treatment approaches. Poor patient outcomes and lack of response to therapy can be attributed, in part, to a lack of uptake of perfusion of systemically administered chemotherapeutic drugs into the tumour. Wet-spun alginate fibres loaded with the chemotherapeutic agent gemcitabine have been developed as a potential tool for overcoming the barriers in delivery of systemically administrated drugs to the PDAC tumour microenvironment by delivering high concentrations of drug to the tumour directly over an extended period. While exciting, the practicality, safety, and effectiveness of these devices in a clinical setting requires further investigation. Furthermore, an in-depth assessment of the drug-release rate from these devices needs to be undertaken to determine whether an optimal release profile exists. Using a hybrid computational model (agent-based model and partial differential equation system), we developed a simulation of pancreatic tumour growth and response to treatment with gemcitabine loaded alginate fibres. The model was calibrated using in vitro and in vivo data and simulated using a finite volume method discretisation. We then used the model to compare different intratumoural implantation protocols and gemcitabine-release rates. In our model, the primary driver of pancreatic tumour growth was the rate of tumour cell division. We were able to demonstrate that intratumoural placement of gemcitabine loaded fibres was more effective than peritumoural placement. Additionally, we quantified the efficacy of different release profiles from the implanted fibres that have not yet been tested experimentally. Altogether, the model developed here is a tool that can be used to investigate other drug delivery devices to improve the arsenal of treatments available for PDAC and other difficult-to-treat cancers in the future
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