6,026 research outputs found
Writing as life performed
In this chapter I explore the interrelatedness of practice, rehearsal, and performance and their applicability in the domain of “life.” These relationships are complicated when, in reference to Adorno’s Minima Moralia, the content of critical-essayistic production (which is analogous to aesthetic production in many ways) is ultimately that of the life of the author. I propose that to a large extent, the categories of practicing, rehearsing, and performing that are derivable from artistic-productive experience can be extended to lived experience. Working and living seriously and critically have significant points of convergence. What I attempt to disrupt is the presupposition of any “natural” hierarchy between these categories, whereby, for example, performance – connoting the tangible accomplishment of goals and the visibility of that accomplishment – takes precedence over the open-ended tasks of practice and rehearsal
Workload control concepts in job shops: a critical assessment
The paper considers a (static) portfolio system that satisfies adding-up contraints and the gross substitution theorem. The paper shows the relationship of the two conditions to the weak dominant diagonal property of the matrix of interest rate elasticities. This enables to investigate the impact of simultaneous changes in interest rates on the asset demands.
Assessing farmer behaviour as affected by policy and technological innovations: bio-economic farm models
Farm Management,
NLO prescription for unintegrated parton distributions
We show how parton distributions unintegrated over the parton transverse
momentum, k_t, may be generated, at NLO accuracy, from the known integrated
(DGLAP-evolved) parton densities determined from global data analyses. A few
numerical examples are given, which demonstrate that sufficient accuracy is
obtained by keeping only the LO splitting functions together with the NLO
integrated parton densities. However, it is important to keep the precise
kinematics of the process, by taking the scale to be the virtuality rather than
the transverse momentum, in order to be consistent with the calculation of the
NLO splitting functions.Comment: 20 pages, 8 figures. v2: version to appear in Eur. Phys. J.
Effect of graphene substrate on the SERS Spectra of Aromatic bifunctional molecules on metal nanoparticles
The design of molecular sensors plays a very important role within nanotechnology and
especially in the development of different devices for biomedical applications. Biosensors can be classified according to various criteria such as the type of interaction established between the recognition element and the analyte or the type of signal detection from the analyte
(transduction). When Raman spectroscopy is used as an optical transduction technique the
variations in the Raman signal due to the physical or chemical interaction between the analyte and the recognition element has to be detected. Therefore any significant improvement in the amplification of the optical sensor signal represents a breakthrough in the design of molecular sensors. In this sense, Surface-Enhanced Raman Spectroscopy (SERS) involves an enormous enhancement of the Raman signal from a molecule in the vicinity of a metal surface.
The main objective of this work is to evaluate the effect of a monolayer of graphene oxide (GO)
on the distribution of metal nanoparticles (NPs) and on the global SERS enhancement of paminothiophenol (pATP) and 4-mercaptobenzoic acid (4MBA) adsorbed on this substrate.
These aromatic bifunctional molecules are able to interact to metal NPs and also they offer the
possibility to link with biomolecules. Additionally by decorating Au or Ag NPs on graphene sheets, a coupled EM effect caused by the aggregation of the NPs and strong electronic
interactions between Au or Ag NPs and the graphene sheets are considered to be responsible
for the significantly enhanced Raman signal of the analytes [1-2]. Since there are increasing
needs for methods to conduct reproducible and sensitive Raman measurements, Grapheneenhanced
Raman Scattering (GERS) is emerging as an important method [3].Universidad de Málaga. Campus de Excelencia Internacional AndalucĂa Tech
Writing as life performed
In this chapter I explore the interrelatedness of practice, rehearsal, and performance and their applicability in the domain of “life.” These relationships are complicated when, in reference to Adorno’s Minima Moralia, the content of critical-essayistic production (which is analogous to aesthetic production in many ways) is ultimately that of the life of the author. I propose that to a large extent, the categories of practicing, rehearsing, and performing that are derivable from artistic-productive experience can be extended to lived experience. Working and living seriously and critically have significant points of convergence. What I attempt to disrupt is the presupposition of any “natural” hierarchy between these categories, whereby, for example, performance – connoting the tangible accomplishment of goals and the visibility of that accomplishment – takes precedence over the open-ended tasks of practice and rehearsal
The L1-Potts functional for robust jump-sparse reconstruction
We investigate the non-smooth and non-convex -Potts functional in
discrete and continuous time. We show -convergence of discrete
-Potts functionals towards their continuous counterpart and obtain a
convergence statement for the corresponding minimizers as the discretization
gets finer. For the discrete -Potts problem, we introduce an time
and space algorithm to compute an exact minimizer. We apply -Potts
minimization to the problem of recovering piecewise constant signals from noisy
measurements It turns out that the -Potts functional has a quite
interesting blind deconvolution property. In fact, we show that mildly blurred
jump-sparse signals are reconstructed by minimizing the -Potts functional.
Furthermore, for strongly blurred signals and known blurring operator, we
derive an iterative reconstruction algorithm
Generalized parton correlation functions for a spin-1/2 hadron
The fully unintegrated, off-diagonal quark-quark correlator for a spin-1/2
hadron is parameterized in terms of so-called generalized parton correlation
functions. Such objects, in particular, can be considered as mother
distributions of generalized parton distributions on the one hand and
transverse momentum dependent parton distributions on the other. Therefore, our
study provides new, model-independent insights into the recently proposed
nontrivial relations between generalized and transverse momentum dependent
parton distributions. We find that none of these relations can be promoted to a
model-independent status. As a by-product we obtain the first complete
classification of generalized parton distributions beyond leading twist. The
present paper is a natural extension of our previous corresponding analysis for
spin-0 hadrons.Comment: 41 pages, 3 figures; v2: added referenc
The CantiClever: a dedicated probe for magnetic force microscopy
We present a new cantilever for magnetic-force microscopy (MFM), the CantiClever, which is not derived from atomic-force microscopy (AFM) probes but optimized for MFM. Our design integrates the cantilever and the magnetic tip in a single manufacturing process with the use of silicon micromachining techniques, which allows for batch fabrication of the probes. This manufacturing process enables precise control on all dimensions of the magnetic tip, resulting in a very thin magnetic element with a very high aspect ratio. Using. the CantiClever, magnetic features down to 30 nm could be observed in a CAMST reference sample
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