1,543 research outputs found
Quantum Field Theory and Unification in AdS5
We consider gauge bosons in the bulk of AdS5 in a two-brane theory that
addresses the hierarchy problem. We show such a theory can be consistent with
gauge coupling unification at a high scale. We discuss subtleties in this
calculation and show how to regulate consistently in a bounded AdS5 background.
Our regularization is guided by the holographic dual of the calculation.Comment: Published version, some typos correcte
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Determining Utility System Value of Demand Flexibility From Grid-interactive Efficient Buildings
This report focuses on ways current methods and practices that establish the value to electric utility systems of distributed energy resource (DER) investments can be enhanced to determine the value of demand flexibility in grid-interactive efficient buildings that can provide grid services. The report introduces key valuation concepts that are applicable to demand flexibility that these buildings can provide and links to other documents that describe these concepts and their implementation in more detail.The scope of this report is limited to the valuation of economic benefits to the utility system. These are the foundational values on which other benefits (and costs) can be built. Establishing the economic value to the grid of demand flexibility provides the information needed to design programs, market rules, and rates that align the economic interest of utility customers with building owners and occupants. By nature, DERs directly impact customers and provide societal benefits external to the utility system. Jurisdictions can use utility system benefits and costs as the foundation of their economic analysis but align their primary cost-effectiveness metric with all applicable policy objectives, which may include customer and societal (non-utility system) impacts.This report suggests enhancements to current methods and practices that state and local policymakers, public utility commissions, state energy offices, utilities, state utility consumer representatives, and other stakeholders might support. These enhancements can improve the consistency and robustness of economic valuation of demand flexibility for grid services. The report concludes with a discussion of considerations for prioritizing implementation of these improvements
Proteomic analysis of a novel protein complex KIAA1310 and studying the roles of DNA hydroxymethylation in diabetic patients
Thesis (M.A.)--Boston UniversityEpigenetic modifications affect the genome without directly affecting the genetic code within the DNA. There are many different types of these modifications and they can last for just a few cell replications or for many generations of cells. Many of them involve covalent modifications of histone proteins, affecting the packing of the chromatin and therefore regulating the transcription and expression of different genes. One epigenetic modification that has been considered more permanent is the methylation of the 5' carbon on cytosine. DNA methylation is performed and maintained by different DNA methyltransferase (DNMT) enzymes. Recently, it has been discovered that this methylation is not permanent, as once thought, but rather it is reversible.
5mC can be hydroxymethylated by the ten-eleven translocase (TET) family of enzymes. They convert 5mC into 5-hydroxymethylcytsoine (5hmC), 5-carboxylcytosine (5caC), 5-formylcytosine (5fC). These changes to the epigenome remove the effects of 5mC, changing gene transcription and expression levels. It is yet to be determined how these modified cytosines are
recycled into an unmodified cytosine within the DNA. There are many proposed mechanisms, and they all seem to involve the TET family proteins and their product, 5hmC. [TRUNCATED
Health Benefits for the Uninsured: Design and Early Implementation of the Accelerated Benefits Demonstration
Many Social Security Disability Insurance (SSDI) beneficiaries have serious and immediate health care needs, but, under current law, most are not eligible for Medicare until 24 months after they start receiving cash benefits. This policy brief describes a new project that is testing whether providing earlier access to health benefits, as well as other services, for new SSDI beneficiaries who have no other health insurance improves employment and health outcomes
A study of oral language use in a grade three classroom: implications of a systematic approach
Oral communication is a vital component of the learning process. Research demonstrates that children benefit from engaging in oral interactions with their peers and, through such interactions, can co-construct knowledge and develop deeper understandings of issues being explored. Currently, however, it can be argued that talk is undervalued in our educational system and little effort is made to focus teaching in this area. The research outlined in this thesis explores the impact of a focus on oral communication skills in a grade 3 classroom. Making use of ongoing assessment and explicit instruction, a systematic approach to instruction was implemented, over a five month period, with tracking of both feasibility and effects. The intention was also to create a community of learners in the classroom, through students' increased use of collaborative, exploratory, and accountable talk. Interventions attempted to address both social and cognitive aspects of classroom talk. The results of the study demonstrate that the impact of the interventions was complex and appeared to be affected by the initial socio-cognitive profiles of the individual children involved. Discussion is provided of the implications of these results for various stakeholders
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Cost of saving natural gas through efficiency programs funded by utility customers: 2012–2017
This study estimates the cost of saving a therm of natural gas from energy efficiency programs funded by utility customers during the period 2012 to 2017. Berkeley Lab researchers compiled and analyzed efficiency program data reported by investor-owned utilities and other program administrators in a dozen states representative of the four U.S. Census regions — Arkansas, California, Connecticut, Iowa, Massachusetts, Michigan, Minnesota, New Jersey, New York, Oklahoma, Rhode Island and Utah. Depending on the year, the dataset accounts for about 50 percent to 70 percent of annual national spending on natural gas efficiency programs.
The estimated cost of saving natural gas during the study period is $0.40 per therm. The analysis also includes estimates of the program administrator cost of saved energy for three core sectors for natural gas: commercial and industrial, residential, and low-income households. It aggregates these sectors to provide regional and national values. Our metrics include savings-weighted averages, unweighted medians, and interquartile ranges (25th and 75th percentiles) of the levelized program administrator cost of saving gas, in constant 2017 dollars. In addition, the study analyzes cost trends during the study period, finding that average program costs trended downward.
The U.S. Department of Energy’s Building Technologies Office supported this work
Teaching Students About The Financial Crisis Through Best-Selling Books
The 2007-2009 financial crisis was such a momentous time that entire business courses could be devoted to its study. While some schools may undertake that task, this paper discusses ways in which students may learn about the crisis as part of an established course in economics or finance departments. Popular press books are highlighted, and writing prompts and discussion questions are shared. The paper focuses on the response by two key public institutions: the Federal Reserve and the Treasury. Results from a student survey provide evidence of value from the use of such books
The Drug Facts Box: Improving the Communication of Prescription Drug Information
Communication about prescription drugs ought to be a paragon of public science communication. Unfortunately, it is not. Consumers see $4 billion of direct-to-consumer advertising annually, which typically fails to present data about how well drugs work. The professional label—the Food and Drug Administration\u27s (FDA) mechanism to get physicians information needed for appropriate prescribing—may also fail to present benefit data. FDA labeling guidance, in fact, suggests that industry omit ben
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Applying Non-Energy Impacts from Other Jurisdictions in Cost-Benefit Analyses of Energy Efficiency Programs: Resources for States for Utility Customer-Funded Programs
Avoided energy and capacity costs are the primary yardstick utilities use to determine which energy efficiency programs are cost-effective for their customers. But sometimes "non-energy impacts" — not commonly recognized as directly associated with energy generation, transmission and distribution — represent substantial benefits, such as improving comfort, air quality and public health.Considering whether and how to include non-energy impacts is an important part of cost-benefit analyses for these programs. This report offers practical considerations for deciding which non-energy impacts to include and how to apply values or methods from other jurisdictions.Researchers reviewed studies quantifying non-energy impacts used in 30 states and applied a five-point system to indicate transferability of a value or method from each study for 16 categories of non-energy impacts:Water resource costs and benefitsOther fuels costs and benefitsAvoided environmental compliance costsEnvironmental impactsProductivityHealth and safety Asset valueEnergy and/or capacity price suppression effectsAvoided costs of compliance with Renewable Portfolio Standard requirementsAvoided credit and collection costsAvoided ancillary servicesComfortEconomic development and job impactsPublic health impactsEnergy security impactsIncreased reliabilityThe U.S. Department of Energy’s Building Technologies Office supported this work
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