Multiple Trophic Levels in Soft-Bottom Communities

In order to assess the general applicability of recent field experiments with predatory infauna, we searched the literature and found 48 well-documented cases of infaunal consumption by such predators. In 63 % of the cases detailed enough to make a determination, the predators ate other predators. Multiple trophic levels within the infauna are probably a common feature of many soft-bottom communities

Population health profile of the NSW Outback Division of General Practice: supplement

© Commonwealth of Australia To view the data presented in the profiles in Excel spreadsheets or via Interactive Mapping, please see the PHIDU website at: www.publichealth.gov.au

Trends in life cycle greenhouse gas emissions of future light duty electric vehicles

The majority of previous studies examining life cycle greenhouse gas (LCGHG) emissions of battery electric vehicles (BEVs) have focused on efficiency-oriented vehicle designs with limited battery capacities. However, two dominant trends in the US BEV market make these studies increasingly obsolete: sales show significant increases in battery capacity and attendant range and are increasingly dominated by large luxury or high-performance vehicles. In addition, an era of new use and ownership models may mean significant changes to vehicle utilization, and the carbon intensity of electricity is expected to decrease. Thus, the question is whether these trends significantly alter our expectations of future BEV LCGHG emissions. To answer this question, three archetypal vehicle designs for the year 2025 along with scenarios for increased range and different use models are simulated in an LCGHG model: an efficiency-oriented compact vehicle; a high performance luxury sedan; and a luxury sport utility vehicle. While production emissions are less than 10% of LCGHG emissions for today's gasoline vehicles, they account for about 40% for a BEV, and as much as two-thirds of a future BEV operated on a primarily renewable grid. Larger battery systems and low utilization do not outweigh expected reductions in emissions from electricity used for vehicle charging. These trends could be exacerbated by increasing BEV market shares for larger vehicles. However, larger battery systems could reduce per-mile emissions of BEVs in high mileage applications, like on-demand ride sharing or shared vehicle fleets, meaning that trends in use patterns may countervail those in BEV design

Population health profile of the Northern Melbourne Division of General Practice

© Commonwealth of Australia To view the data presented in the profiles in Excel spreadsheets or via Interactive Mapping, please see the PHIDU website at: www.publichealth.gov.au

Ill-posedness of degenerate dispersive equations

In this article we provide numerical and analytical evidence that some degenerate dispersive partial differential equations are ill-posed. Specifically we study the K(2,2) equation $u_t = (u^2)_{xxx} + (u^2)_{x}$ and the "degenerate Airy" equation $u_t = 2 u u_{xxx}$. For K(2,2) our results are computational in nature: we conduct a series of numerical simulations which demonstrate that data which is very small in $H^2$ can be of unit size at a fixed time which is independent of the data's size. For the degenerate Airy equation, our results are fully rigorous: we prove the existence of a compactly supported self-similar solution which, when combined with certain scaling invariances, implies ill-posedness (also in $H^2$)

Building a Better Future on the Foundations of the Past: Incorporating Historic Districts into Ecocities

In an effort to become more sustainable, many cities are embarking on ecocity projects: city-wide urban projects intended to minimize environmental impacts as a result of urban development through a combination of environmental policy and urban planning. This thesis discusses how the ecocity movement can complement and conflict with historic preservation. The case studies of Strasbourg, France and Alexandria, Virginia shed light on how preservation can be successfully incorporated into ecocity plans. A best practices guide, synthesized from the case studies, outlines how preservation should be incorporated in the various planning stages to further a city’s sustainable goals. This thesis concludes that in many cases preservation goals and the sustainable goals identified in ecocity plans align, but without the inclusion of and collaboration with preservation professionals during the early planning stages, preservation can be left out of ecocity plans and historic fabric can ultimately be threatened by new “sustainable” development

STARR Progress Report

The State of Texas Advanced Resource Recovery program (STARR) has achieved its primary goal of boosting severance tax revenue for the State through research projects aimed at promoting the drilling of profitable oil and gas wells. Currently, the Bureau of Economic Geology (BEG) receives state funding to conduct research that aids oil and gas operators in either establishing new production or enhancing existing production across Texas. STARR operates under the mandate of being revenue neutral, meaning that the revenue generated from STARR projects must at least match the funds allocated by the Legislature. This progress report provides a detailed summary of the accomplishments of Project STARR over the past two years, from September 1, 2012, to August 31, 2014. According to the methodology approved by the State of Texas Comptroller's office, the credit attributed to the STARR program for the 2012—2014 biennium amounts to $140,766,560 (see table 1). With total income of$9 million over the current biennium, STARR demonstrates a positive revenue impact of 15.6. To date, the STARR program has concluded or is actively engaged in over 60 field (reservoir characterization) studies (see figs. 1 and 2). Figure 2 highlights 23 significant new reservoir characterization studies conducted during the 2012—2014 biennium. Additionally, STARR has initiated 8 new regional studies, encompassing areas such as the Eaglebine trend in southeastern Texas Gulf Coast, as well as the Cline Shale and Wolfcamp and Spraberry Formations in the Permian Basin of West Texas (see fig. 3). Furthermore, STARR includes eight supplementary program elements that complement the Oil and Gas Resources program. Each of these elements targets research relevant to critical economic opportunities or challenges in Texas concerning natural resources or geological conditions. These elements encompass geothermal resources, water-related issues affecting the Texas economy, mineral and earth resources, geological hazards, energy economics, baseline mapping for oil spill response, economic implications of environmental flows, and analysis of water-energy nexus issues.Bureau of Economic Geolog