278 research outputs found
Innovation oder Wiederkehr? : Das Methodenspektrum im Kurzzeitgedächtnis der Literaturwissenschaft
In recent years, a pronounced methodological self-reflexiveness has been established as a standard in studying language and literature. Methodological pluralism and a specific methodological adaptation to the objects of study are a characteristic feature of present-day literary and cultural studies. In keeping with this tendency, introductory textbooks on literary studies often provide an overview of the broad discussion and spectrum of methods and their seemingly boundless possible applications and the options for combining them. But this is not the first time that the boundaries of our discipline have undergone dissolution. Beginning with early examples of accounts of methodological variety and methodological reflection (Oscar Benda, Harry Maync, Emil Ermatinger, Julius Petersen), the present article discusses the ways in which an awareness of a surprisingly long tradition of discussions concerning methodological competence affects the present self-conception and identity of philology
Vacuum expectation value renormalization in the standard model and beyond
We show how the renormalization constant of the Higgs vacuum expectation value fixed by a tadpole condition is responsible for gauge dependences in various definitions of parameters in the R
-gauge. Then we show the relationship of this renormalization constant to the Fleischer-Jegerlehner (FJ) scheme, which is used to avoid these gauge dependences. In this way, we also present a viewpoint on the FJ scheme complementary to the ones already existing in the literature. Additionally, we compare and discuss different approaches to the renormalization of tadpoles by identifying the similarities and relations between them. The relationship to the Higgs background-field renormalization is also discussed
Renormalization of the multi-Higgs-doublet Standard Model and one-loop lepton mass corrections
Motivated by models for neutrino masses and lepton mixing, we consider the
renormalization of the lepton sector of a general multi-Higgs-doublet Standard
Model with an arbitrary number of right-handed neutrino singlets. We propose to
make the theory finite by \overline{\mbox{MS}} renormalization of the
parameters of the unbroken theory. However, using a general gauge, in
the explicit one-loop computations of one-point and two-point functions it
becomes clear that---in addition---a renormalization of the vacuum expectation
values (VEVs) is necessary. Moreover, in order to ensure vanishing one-point
functions of the physical scalar mass eigenfields, finite shifts of the
tree-level VEVs, induced by the finite parts of the tadpole diagrams, are
required. As a consequence of our renormalization scheme, physical masses are
functions of the renormalized parameters and VEVs and thus derived quantities.
Applying our scheme to one-loop corrections of lepton masses, we perform a
thorough discussion of finiteness and -independence. In the latter
context, the tadpole contributions figure prominently.Comment: 50 pages. Minor typos corrected. Matches version in JHE
Sample preparation strategies for food and biological samples prior to nanoparticle detection and imaging
Vacuum expectation value renormalization in the Standard Model and beyond
We show how the renormalization constant of the Higgs vacuum expectation
value, fixed by a tadpole condition, is responsible for gauge dependences in
various definitions of parameters in the -gauge. Then we show the
relationship of this renormalization constant to the Fleischer-Jegerlehner (FJ)
scheme, which is used to avoid these gauge dependences. In this way, we also
present a viewpoint on the FJ-scheme complementary to the ones already existing
in the literature. Additionally, we compare and discuss different approaches to
the renormalization of tadpoles by identifying the similarities and relations
between them. The relationship to the Higgs background field renormalization is
also discussed.Comment: 16 pages; accepted for publication in pr
Strategic use of instruments of land policy for mobilising private land for flood risk management
The focus on private land of this special issue points at a “policy delivery gap” (Moss, 2008) and the instruments by which to overcome it. Whereas the technical and hydrological functions of land in flood risk management are relatively well known, there remain considerable gaps in the understanding of how to mobilise the required land resources and overcome, respectively prevent, flood-related conflicts in land use (Edelenbos et al., 2013; Morris et al., 2016). As most studies focus on case and context specific solutions, gaining a more comprehensive and generic understanding of the different options and mechanisms of leveraging land for floods is an important task for research and policy practice alike. This cross-disciplinary edited collection brings together research from the natural, technical, legal and social sciences to provide an encompassing instrumental perspective of mobilising land in the context of flood risk management. The core aim of this volume is to explore solutions to this pertinent issue in the broadening policy paradigm
Single particle ICP-MS for the detection of inorganic nanoparticles in food and biological samples
- …