1,074 research outputs found

    Czeslaw Tubilewicz, Taiwan and Post-Communist Europe. Shopping for Allies Londres, Routledge, 2007, 242 p.

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    Cet ouvrage rejoint l’étude de Chen Jie, Foreign Policy of the New Taiwan: Pragmatic Diplomacy in Southeast Asia (Elgar, 2002), au rang des meilleures analyses des relations Ă©trangĂšres de la dĂ©mocratie taĂŻwanaise. Le livre de Tubilewicz analyse les relations entretenues par TaĂŻwan avec les nations d’Europe qui ont Ă©tĂ© communistes jusqu’en 1990. Avant cette date, l’ancien gouvernement dictatorial du Guomindang interdisait tout type de relation, y compris commerciale, avec ses « ennemis » commu..

    Czeslaw Tubilewicz, Taiwan and Post-Communist Europe. Shopping for Allies

    Get PDF
    This book joins Chen Jie’s Foreign Policy of the New Taiwan: Pragmatic Diplomacy in Southeast Asia (Elgar, 2002) as a leading analysis of the foreign relations of democratic Taiwan . Tubilewicz’s book analyses Taiwan ’s relations with the European nations that had been Communist prior to 1990. Before then, the former dictatorial Kuomintang government had forbade any sort of relations, including trade, with its Communist “enemies,” thus providing a special challenge for a newly democratic Taiw..

    Czeslaw Tubilewicz, Taiwan and Post-Communist Europe. Shopping for Allies Londres, Routledge, 2007, 242 p.

    Get PDF
    Cet ouvrage rejoint l’étude de Chen Jie, Foreign Policy of the New Taiwan: Pragmatic Diplomacy in Southeast Asia (Elgar, 2002), au rang des meilleures analyses des relations Ă©trangĂšres de la dĂ©mocratie taĂŻwanaise. Le livre de Tubilewicz analyse les relations entretenues par TaĂŻwan avec les nations d’Europe qui ont Ă©tĂ© communistes jusqu’en 1990. Avant cette date, l’ancien gouvernement dictatorial du Guomindang interdisait tout type de relation, y compris commerciale, avec ses « ennemis » commu..

    Separation of river network–scale nitrogen removal among the main channel and two transient storage compartments

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    Transient storage (TS) zones are important areas of dissolved inorganic nitrogen (DIN) processing in rivers. We assessed sensitivities regarding the relative impact that the main channel (MC), surface TS (STS), and hyporheic TS (HTS) have on network denitrification using a model applied to the Ipswich River in Massachusetts, United States. STS and HTS connectivity and size were parameterized using the results of in situ solute tracer studies in first‐ through fifth‐order reaches. DIN removal was simulated in all compartments for every river grid cell using reactivity derived from Lotic Intersite Nitrogen Experiment (LINX2) studies, hydraulic characteristics, and simulated discharge. Model results suggest that although MC‐to‐STS connectivity is greater than MC‐to‐HTS connectivity at the reach scale, at basin scales, there is a high probability of water entering the HTS at some point along its flow path through the river network. Assuming our best empirical estimates of hydraulic parameters and reactivity, the MC, HTS, and STS removed approximately 38%, 21%, and 14% of total DIN inputs during a typical base flow period, respectively. There is considerable uncertainty in many of the parameters, particularly the estimates of reaction rates in the different compartments. Using sensitivity analyses, we found that the size of TS is more important for DIN removal processes than its connectivity with the MC when reactivity is low to moderate, whereas TS connectivity is more important when reaction rates are rapid. Our work suggests a network perspective is needed to understand how connectivity, residence times, and reactivity interact to influence DIN processing in hierarchical river systems

    Trends in the Treatment of Adults with Ureteropelvic Junction Obstruction

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    Background and Purpose: Minimally invasive pyeloplasty is an effective treatment for patients with ureteropelvic junction obstruction that offers quicker convalescence than open pyeloplasty. Technical challenges, however, may have limited its dissemination. We examined population trends and determinants of surgical options for ureteropelvic junction obstruction. Patients and Methods: Using the State Inpatient and Ambulatory Surgery Databases for Florida, we identified adults who underwent ureteropelvic junction obstruction repair between 2001 and 2009. After determining the surgical approach (minimally invasive pyeloplasty, open pyeloplasty, or endopyelotomy), we estimated annual utilization rates and the effects of patient, surgeon, and hospital predictors on surgery type, using multilevel multinomial logistic regression. Results: Rates of minimally invasive pyeloplasty increased 360% (P for monotonic trendPeer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140371/1/end.2012.0017.pd

    Submesoscale dispersion in the vicinity of the Deepwater Horizon spill

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    Reliable forecasts for the dispersion of oceanic contamination are important for coastal ecosystems, society and the economy as evidenced by the Deepwater Horizon oil spill in the Gulf of Mexico in 2010 and the Fukushima nuclear plant incident in the Pacific Ocean in 2011. Accurate prediction of pollutant pathways and concentrations at the ocean surface requires understanding ocean dynamics over a broad range of spatial scales. Fundamental questions concerning the structure of the velocity field at the submesoscales (100 meters to tens of kilometers, hours to days) remain unresolved due to a lack of synoptic measurements at these scales. \textcolor{black} {Using high-frequency position data provided by the near-simultaneous release of hundreds of accurately tracked surface drifters, we study the structure of submesoscale surface velocity fluctuations in the Northern Gulf Mexico. Observed two-point statistics confirm the accuracy of classic turbulence scaling laws at 200m−-50km scales and clearly indicate that dispersion at the submesoscales is \textit{local}, driven predominantly by energetic submesoscale fluctuations.} The results demonstrate the feasibility and utility of deploying large clusters of drifting instruments to provide synoptic observations of spatial variability of the ocean surface velocity field. Our findings allow quantification of the submesoscale-driven dispersion missing in current operational circulation models and satellite altimeter-derived velocity fields.Comment: 9 pages, 6 figure

    Lattice models and Landau theory for type II incommensurate crystals

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    Ground state properties and phonon dispersion curves of a classical linear chain model describing a crystal with an incommensurate phase are studied. This model is the DIFFOUR (discrete frustrated phi4) model with an extra fourth-order term added to it. The incommensurability in these models may arise if there is frustration between nearest-neighbor and next-nearest-neighbor interactions. We discuss the effect of the additional term on the phonon branches and phase diagram of the DIFFOUR model. We find some features not present in the DIFFOUR model such as the renormalization of the nearest-neighbor coupling. Furthermore the ratio between the slopes of the soft phonon mode in the ferroelectric and paraelectric phase can take on values different from -2. Temperature dependences of the parameters in the model are different above and below the paraelectric transition, in contrast with the assumptions made in Landau theory. In the continuum limit this model reduces to the Landau free energy expansion for type II incommensurate crystals and it can be seen as the lowest-order generalization of the simplest Lifshitz-point model. Part of the numerical calculations have been done by an adaption of the Effective Potential Method, orginally used for models with nearest-neighbor interaction, to models with also next-nearest-neighbor interactions.Comment: 33 pages, 7 figures, RevTex, submitted to Phys. Rev.
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