Can the Expansion of 45Q Effectively Spur Investment in Carbon Capture?

Carbon capture technologies play a critical role in the global effort to mitigate carbon dioxide (C02) emissions. Even with significant advancements in energy efficiency and an increase in renewable energy generation, the international community will not be able to meet critical climate goals without a strong carbon capture portfolio. Moreover, it is one of the few technologies capable of reducing emissions from the fossil fuel industry which is expected to remain a significant player in the energy sector well into the middle of the century. Despite this, there have been few federal incentives for carbon capture, and those that exist have proven largely insufficient for supporting commercial deployment

An Ace Up Their Sleeve or a House of Cards: Can the EPA\u27s Affordable Clean Energy Rule Withstand Chevron Deference?

The U.S. Court of Appeals for the District of Columbia (D.C. Circuit) is poised to become a prime battleground in a fight over the scope of the Environmental Protection Agency \u27s (EPA) authority to regulate greenhouse gas emissions (GHGs) from the power sector under the Clean Air Act (CAA). The dispute stems from the EPA\u27s recent efforts to replace the Obama-era Clean Power Plan (CPP) with the Affordable Clean Energy Rule (ACE Rule). This move was quickly challenged by a coalition of twenty-nine cities and states as well as several prominent American health associations. The two rules reflect very different views in regards to the role the federal government should play in combatting climate change, yet the core legal questions they pose are quite similar

Stability and evolution of transcriptional regulatory networks

How do transcriptional regulatory networks elicit stable gene expression patterns? How do such networks evolve? These topics have kept molecular biologists occupied for years. The recent elucidation of regulatory networks that control endoderm development, including ‘genomic location analysis ’ of transcription factors in endoderm-derived liver cells, provides more comprehensive views than in the past. But how much more have we learned? Genome location analysis, or ChIP-on-chip, first involves crosslinking chromatin in native cells, breaking it into small fragments (e.g., 0.5–1 kb), immunoprecipitating the fragments that contain a specific transcription factor antigen (ChIP), and performing ligation-mediated PCR to amplify the ChIP fragments. The amplified DNA pool is then labeled and hybridized to a microarray (chip) containing single-stranded DNA probe

Nonresident Travel Patterns Between Glacier and Yellowstone National Parks

Travel patterns of nonresidents who visited both Glacier and Yellowstone National Parks on their trip to Montana were analyzed for this study. Results showed a number of travel patterns emerged, but two patterns, the open loop and the linear patterns, were predominate. This report provides a discussion of travel patterns with detailed maps included

Range of normal values for left and right ventricular ejection fraction at rest and during exercise assessed by radionuclide angiocardiography

In order to reach a world-wide consensus on the normal range of left (LV) and right ventricular (RV) ejection fraction (EF) at rest and during exercise, pooled data of 1200 normal subjects from 28 leading centres in the field of nuclear cardiology (68% of those contacted) was analysed. Weighted mean normal values for LVEF at rest were 62.3±6.1% (1SD) with a lower limit of normal of 50% and for RVEF 52.3±6.2% (N=365) with a lower limit of normal of 40%. During exercise, LVEF increased in 475 subjects by +8.0 EF% (range 3-15%), a normal increase being accepted to be ≥5% over a normal resting value for both LVEF and RVEF. Subgroup analysis of results at rest revealed no significant differences regarding selection of normal subjects (based on normal catheterization findings vs. normal volunteers with low probability of disease), age or sex. During exercise, however, significantly larger increases in LVEF measurements were noted for men versus women (P<0.01), for normal volunteers versus subjects selected as ‘normals' based on a normal coronary angiogram (P<0.001) and for younger versus older subjects (P<0.001). Data on reproducibility and variability showed that radionuclide angiocardiography can be considered to be a reliable method today. No consensus was found for measurements of regional LV function or wall motion mainly because of differences in methodology used. These normal values may serve as general guidelines for future applications of these techniques but factors which may influence the normal range as defined and discussed in this study should be recognize

Sustaining Tacit and Embedded Knowledge in Textile Conservation and Textile and Dress Collections

Th is article explores the current paradoxical position of textile and dress collections and textile conservation in museums from an English perspective. Textile and dress exhibitions have become increasingly high profile, and conservators are being energized by an expanded vision for communicating the activity of heritage conservation, engaging with the public in different and exciting ways and making this oft en hidden process accessible. Nevertheless, despite many exciting initiatives, the underlying trend in the United Kingdom indicates a creeping loss of specialist textile curatorial and conservation posts. Th e article explores the implications of these losses on tacit and embedded knowledge and expertise and the growing threat to the longterm sustainability of textile and dress collections, particularly in the regions. It studies the reasons for these problems and considers in more detail a key issue, that of the loss of teaching needlework skills. Th e article argues that these issues need to be considered when planning strategies to ensure the sustainable future of textile and dress collections and related curatorial and conservation skills. It includes a case study exploring approaches to embedding sustainable expertise implemented during a Monument Fellowship at York Castle Museum, England