654 research outputs found
Disaggregating the dependent variable in policy feedback research: An analysis of the EU Emissions Trading System
The literature on policy dynamics has long argued for a better conceptualization and measurement of the dependent variable (“policy”), but this fundamental point has often been neglected in the policy feedback literature. In this paper we explore how far disaggregating policy into different elements (policy instruments, objectives, and settings) addresses this gap. We do so by examining the world’s largest market-based climate policy instrument – emissions trading in the European Union – and reveal a number of valuable new insights. First, even if positive policy feedback locks in a policy instrument, actor contestation does not disappear, but narrows down to the more detailed level of policy settings. Second, feedback may operate differently at each policy level: the policy instrument and its settings may strengthen at the same time as support for broader objectives weakens. Finally, positive feedback may simultaneously strengthen opposing actors’ support for multiple policy elements, leading to a form of “policy stability by stalemate”. These findings highlight the need for a new, interdisciplinary phase of policy feedback research that more fully disaggregates the dependent variable across a wider range of policy areas and policy instrument types. Policy scientists are well equipped to contribute to and benefit from such a debate
Fast Algorithms and Efficient Statistics: N-point Correlation Functions
We present here a new algorithm for the fast computation of N-point
correlation functions in large astronomical data sets. The algorithm is based
on kdtrees which are decorated with cached sufficient statistics thus allowing
for orders of magnitude speed-ups over the naive non-tree-based implementation
of correlation functions. We further discuss the use of controlled
approximations within the computation which allows for further acceleration. In
summary, our algorithm now makes it possible to compute exact, all-pairs,
measurements of the 2, 3 and 4-point correlation functions for cosmological
data sets like the Sloan Digital Sky Survey (SDSS; York et al. 2000) and the
next generation of Cosmic Microwave Background experiments (see Szapudi et al.
2000).Comment: To appear in Proceedings of MPA/MPE/ESO Conference "Mining the Sky",
July 31 - August 4, 2000, Garching, German
Final reflections
This concluding chapter offers some final reflections regarding the four objectives of the research project 'Inclusive epistemologies and practices of out- of- school English learning (IEP!)1', funded by the Spanish Ministry of Science and Innovation, which ran from January 2019 until June 2021. These aims were: 1) to collaboratively researchteenagers' existing practices of using and learning English out of school time; 2) to implement new, inclusive, nonformal English language educational initiatives; 3) to evaluate the impact of the nonformal English language educational intiatives implemented; 4) to support the sustainability and transferability of the initiatives. Both the main outcomes and some enduring challenges are presented
A global fit of top quark effective theory to data
In this paper we present a global fit of beyond the Standard Model (BSM)
dimension six operators relevant to the top quark sector to currently available
data. Experimental measurements include parton-level top-pair and single top
production from the LHC and the Tevatron. Higher order QCD corrections are
modelled using differential and global K-factors, and we use novel fast-fitting
techniques developed in the context of Monte Carlo event generator tuning to
perform the fit. This allows us to provide new, fully correlated and
model-independent bounds on new physics effects in the top sector from the most
current direct hadron-collider measurements in light of the involved
theoretical and experimental systematics. As a by-product, our analysis
constitutes a proof-of-principle that fast fitting of theory to data is
possible in the top quark sector, and paves the way for a more detailed
analysis including top quark decays, detector corrections and precision
observables.Comment: Additional references and preprint code added. Minor error in
generation of plots fixed, no conclusions affecte
Results from TopFitter
We discuss a global fit of top quark BSM couplings, phrased in the
model-independent language of higher-dimensional effective operators, to the
currently available data from the LHC and Tevatron. We examine the interplay
between inclusive and differential measurements, and the complementarity of LHC
and Tevatron results. We conclude with a discussion of projections for
improvement over LHC Run II.Comment: 5 pages, 4 figures, proceedings of the 9th International Workshop on
the CKM Unitarity Triangle, 28 November - 3 December 2016, Tata Institute for
Fundamental Research (TIFR), Mumbai, Indi
Perceptions of Kentucky Secondary School Principals About Agricultural Education Programs: A Comparison of Schools With and Without Agricultural Education Programs
Countless research suggests that secondary agricultural education programs could benefit all students regardless of school characteristics and geographic location, yet many secondary schools have yet to include agricultural education as part of their curricular offerings. In response, numerous studies have been conducted in recent years throughout the United States regarding how secondary agricultural education programs are perceived by school leaders. For the first time, this study sought to shed light on how secondary principals in Kentucky perceived agricultural education programs. Considered in this study, were how secondary principals with agricultural education in their schools perceived those programs differently than secondary principals without agricultural education in their schools. Secondary principals in Kentucky were selected to participate in this study based on the population of Kentucky counties that had at least one secondary school with agricultural education and at least one secondary school without agricultural education (N = 95). This quantitative descriptive study measured how participants perceived secondary agricultural education programs by utilizing a survey with Likert-type and demographic questions. Four constructs guided the survey items to measure how secondary principals perceived agricultural education based upon overall program success, the courses offered in agricultural education programs, the quality of agriculture teachers, and personal familiarity with the FFA. Results indicated that secondary principals with agricultural education in their schools have significantly higher perceptions of such programs than do secondary principals without agricultural education in their schools. Furthermore, results revealed that all constructs included in this study have predictive variables of one’s overall perception of secondary agricultural education programs. Additional research is necessary to further examine how secondary principals nationwide perceive agricultural education programs and to what extent their perceptions are valued regarding decision making for program implementation
Locations of marine animals revealed by carbon isotopes
Knowing the distribution of marine animals is central to understanding climatic and other environmental influences on population ecology. This information has proven difficult to gain through capture-based methods biased by capture location. Here we show that marine location can be inferred from animal tissues. As the carbon isotope composition of animal tissues varies with sea surface temperature, marine location can be identified by matching time series of carbon isotopes measured in tissues to sea surface temperature records. Applying this technique to populations of Atlantic salmon (Salmo salar L.) produces isotopically-derived maps of oceanic feeding grounds, consistent with the current understanding of salmon migrations, that additionally reveal geographic segregation in feeding grounds between individual philopatric populations and age-classes. Carbon isotope ratios can be used to identify the location of open ocean feeding grounds for any pelagic animals for which tissue archives and matching records of sea surface temperature are available
Governing the Metropolis: An International Review of Metropolitanisation, Metropolitan Governance and the Relationship with Sustainable Land Management
Recent research has identified the potential of the metropolitan scale, and indeed metropolitan bodies, in achieving greater coordination and more effective land-use management. In this paper, we have undertaken a systematic scoping review of the English-language literature (2014–2019) on metropolitanisation and metropolitan governance, with a view to understanding the potential relationship with more sustainable land management. Our scoping review identified several dominant trends within current research on metropolitanisation and metropolitan governance illustrating the complexity between sustainable land management and issues of territorial politics, resourcing, and power relations. The centrality of collaborative working relationships in supporting sustainable land management is identified, yet collaboration and effective metropolitan scale governance is not always an easy task or readily implemented. The paper identifies a series of challenges and concludes that while there is general consensus that the metropolitan arena may be an appropriate scale through which to support more sustainable land management, there is no agreement on the mechanisms to enable this. Steering and more strongly directing metropolitanisation processes through either formal metropolitan governance structures or other tools could provide a potential approach but will require significant adaptation in power and funding structures
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