769 research outputs found
Deference, Displacement, and Due Diligence in AIIB and World Bank Lending in India: The Amaravati Capital City and Mumbai Urban Transport Projects
The Asian Infrastructure Investment Bank (AIIB) has invested almost one-third of its entire pan-Asian portfolio in India, which has quietly become the Chinese-led bank’s top borrower despite rising China-India tensions. Over the first half-decade of the AIIB, most of its projects were co-financed with other multilaterals, led by the World Bank, and applied their environmental and social policies, accountability mechanisms, and grievance processes. This empirical research paper traces the development of two projects in India involving AIIB and the World Bank: the ill-fated Amaravati Capital City Project in Andhra Pradesh, a cancelled co-financed project, and the ongoing Mumbai Urban Transport Project, Phase III, originally intended for co-financing but is an AIIB standalone after India’s negotiations with the World Bank met at an impasse. While the cases exhibit quite different examples of AIIB and World Bank’s partnership in (and with) India, both raise similar questions about AIIB’s accountability for environmental and social impacts of its projects—particularly where land acquisition is concerned.https://dc.suffolk.edu/rifellows/1002/thumbnail.jp
An Overview of the South Carolina Water Resources Consortium: Functions and Benefits
2010 S.C. Water Resources Conference - Science and Policy Challenges for a Sustainable Futur
BIMA N2H+ 1-0 mapping observations of L183 -- fragmentation and spin-up in a collapsing, magnetized, rotating, pre-stellar core
We have used the Berkeley-Illinois-Maryland Array (BIMA) to make deep N2H+
1-0 maps of the pre-stellar core L183, in order to study the spatial and
kinematic substructure within the densest part of the core. Three spatially and
kinematically distinct clumps are detected, which we label L183-N1, L183-N2 and
L183-N3. L183-N2 is approximately coincident with the submillimetre dust peak
and lies at the systemic velocity of L183. Thus we conclude that L183-N2 is the
central dense core of L183. L183-N1 and 3 are newly-discovered fragments of
L183, which are marked by velocity gradients that are parallel to, but far
stronger than, the velocity gradient of L183 as a whole, as detected in
previous single-dish data. Furthermore, the ratio of the large-scale and
small-scale velocity gradients, and the ratio of their respective size-scales,
are consistent with the conservation of angular momentum for a rotating,
collapsing core undergoing spin-up. The inferred axis of rotation is parallel
to the magnetic field direction, which is offset from its long axis, as we have
seen in other pre-stellar cores. Therefore, we propose that we have detected a
fragmenting, collapsing, filamentary, pre-stellar core, rotating about its
B-field, which is spinning up as it collapses. It will presumably go on to form
a multiple protostellar system.Comment: 7 figures, 1 table, 21 pages, accepted for publication in Ap
Specification of high-level application programming interfaces (SemSorGrid4Env)
This document defines an Application Tier for the SemsorGrid4Env project. Within the Application Tier we distinguish between Web Applications - which provide a User Interface atop a more traditional Service Oriented Architecture - and Mashups which are driven by a REST API and a Resource Oriented Architecture. A pragmatic boundary is set to enable initial development of Web Applications and Mashups; as the project progresses an evaluation and comparison of the two paradigms may lead to a reassessment of where each can be applied within the project, with the experience gained providing a basis for general guidelines and best practice. Both Web Applications and Mashups are designed and delivered through an iterative user-centric process; requirements generated by the project case studies are a key element of this approach
The Origin of Sequential Chromospheric Brightenings
Sequential chromospheric brightenings (SCBs) are often observed in the
immediate vicinity of erupting flares and are associated with coronal mass
ejections. Since their initial discovery in 2005, there have been several
subsequent investigations of SCBs. These studies have used differing detection
and analysis techniques, making it difficult to compare results between
studies. This work employs the automated detection algorithm of Kirk et al.
(Solar Phys. 283, 97, 2013) to extract the physical characteristics of SCBs in
11 flares of varying size and intensity. We demonstrate that the magnetic
substructure within the SCB appears to have a significantly smaller area than
the corresponding H-alpha emission. We conclude that SCBs originate in the
lower corona around 0.1 R_sun above the photosphere, propagate away from the
flare center at speeds of 35 - 85 km/s, and have peak photosphere magnetic
intensities of 148 +/- 2.9 G. In light of these measurements, we infer SCBs to
be distinctive chromospheric signatures of erupting coronal mass ejections.Comment: 25 pages, 9 figures, 5 table
Locally Optimally-emitting Clouds and the Narrow Emission Lines in Seyfert Galaxies
The narrow emission line spectra of active galactic nuclei are not accurately
described by simple photoionization models of single clouds. Recent Hubble
Space Telescope images of Seyfert 2 galaxies show that these objects are rich
with ionization cones, knots, filaments, and strands of ionized gas. Here we
extend to the narrow line region the ``locally optimally emitting cloud'' (LOC)
model, in which the observed spectra are predominantly determined by powerful
selection effects. We present a large grid of photoionization models covering a
wide range of physical conditions and show the optimal conditions for producing
many of the strongest emission lines. We show that the integrated narrow line
spectrum can be predicted by an integration of an ensemble of clouds, and we
present these results in the form of diagnostic line ratio diagrams making
comparisons with observations. We also predict key diagnostic line ratios as a
function of distance from the ionizing source, and compare these to
observations. The predicted radial dependence of the [O III]/[O II] ratio may
be matched to the observed one in NGC4151, if the narrow line clouds see a more
intense continuum than we see. The LOC scenario when coupled with a simple
Keplerian gravitational velocity field will quite naturally predict the
observed line width versus critical density relationship. The influence of dust
within the ionized portion of the clouds is discussed and we show that the more
neutral gas is likely to be dusty, although a high ionization dust-free region
is most likely present too. This argues for a variety of NLR cloud origins.Comment: 29 pages plus 16 figures, accepted for publication in Ap
Implementation and Deployment of a Library of the High-level Application Programming Interfaces (SemSorGrid4Env)
The high-level API service is designed to support rapid development of thin web applications and mashups beyond the state of the art in GIS, while maintaining compatibility with existing tools and expectations. It provides a fully configurable API, while maintaining a separation of concerns between domain experts, service administrators and mashup developers. It adheres to REST and Linked Data principles, and provides a novel bridge between standards-based (OGC O&M) and Semantic Web approaches. This document discusses the background motivations for the HLAPI (including experiences gained from any previously implemented versions), before moving onto specific details of the final implementation, including configuration and deployment instructions, as well as a full tutorial to assist mashup developers with using the exposed observation data
Stem cells transplanted into the brain are immunogenic and are actively rejected by the host [abstract]
Abstract only availableStem cell-based therapies have shown great promise in the treatment of neurodegenerative diseases such as Batten's Disease and Parkinson's Disease. Intracranial stem cell transplantation has the potential to restore function and compensate for neural cells lost due to injury or disease. However, rejection of donor cells by the host immune system may limit the effectiveness of stem cell therapies. Recent research has suggested that some stem cells may be immunoprivileged, able to avoid rejection by the host's immune system in both allogeneic and xenogeneic settings. This can occur regardless of an MHC mismatch. However, several aspects of these studies complicate interpretations of their results. Transplant recipients are often irradiated before the transplant (Drukker et al. 2006) or otherwise immunocompromised and studies often culminate in a time period insufficient for immune rejection to have occurred (under a week) (Li et al. 2004). To evaluate whether stem cells are immunoprivileged when transplanted into the brain, GFP-expressing neural stem cells (NSCs) were transplanted into the brains of immunocompetent, immunologically mismatched mice. Mice were then sacrificed at time points of one, three, five, seven and nine days posttransplantation. The brains were fixed, freeze-embedded with OCT and sectioned. Graft survival was evaluated by observing the amount of GFP-expressing donor cells in the sections. Sections were also immunolabeled for cells expressing CD4, CD8 and CD11b, all of which are markers for infiltrating immune cells. Presence of such cells indicates immune detection and rejection and can be used to quantify the immune response to foreign stem cells. In future studies, the use of Regulatory T Cells may help to alleviate this rejection by suppressing the activity of CD8 (cytotoxic) and CD4 (helper) T Cells.National Institutes of Healt
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