6,279 research outputs found
Behavior of fluids in the vicinity of the critical point
Fluid behavior in vicinity of critical poin
The Neoliberal Circulation of Affects: Happiness, accessibility and the capacitation of disability as wheelchair
The International Symbol of Access (ISA) produces, capacitates, and debilitates disability in particular ways and is grounded by a happy affective economy that is embedded within neoliberal capitalism. This production of disability runs counter to the dismantling of ableism and compulsory able-bodiedness. In charting the development of the modern wheelchair, the rise of disability rights in North America, and the emergence of the ISA as a universally acceptable representation of access for disabled people, I argue that this production of disability serves a capacitating function for particular forms of impairment. These capacitated forms are celebrated through a neoliberal economy of inclusion. I conclude by critically approaching the happy affects of the ISA, including the way in which the symbol creates a sense of cruel optimism for disabled people
Impact of different Agents on the Efficacy of Codling Moth Granulovirus in Tank Mixtures
In the control of codling moth it is common to combine the granulovirus with other agents,
especially fungicides, in spray application. Therefore the knowledge about the influence of
these agents on the efficacy of the virus in tank mix is very important. Studies on this
subject were part of a project supported by BMELV (German Federal Ministry for Food,
Agriculture and Consumer protection) at the Institute for Biological Control of JKI in
Darmstadt.
The granulovirus of Cydia pomonella (L.) (CpGV) was mixed with 10 different agents at
concentrations as applied in the field. After the exposure the virus activity was calculated
from larval mortality determined in bioassays with neonates of a susceptible codling moth
strain.
Only two agents with a pH of 11 (sodium silicate (water glass) and calcium polysulfide
(lime sulphur)) reduced the virulence of CpGV significantly
Quantum phase transitions and decoupling of magnetic sublattices in the quasi-two-dimensional Ising magnet Co3V2O8 in a transverse magnetic field
The application of a magnetic field transverse to the easy axis, Ising
direction in the quasi-two-dimensional Kagome staircase magnet, Co3V2O8,
induces three quantum phase transitions at low temperatures, ultimately
producing a novel high field polarized state, with two distinct sublattices.
New time-of-flight neutron scattering techniques, accompanied by large angular
access, high magnetic field infrastructure allow the mapping of a sequence of
ferromagnetic and incommensurate phases and their accompanying spin
excitations. At least one of the transitions to incommensurate phases at \mu
0Hc1~6.25 T and \mu 0Hc2~7 T is discontinuous, while the final quantum critical
point at \mu 0Hc3~13 T is continuous.Comment: 5 pages manuscript, 3 pages supplemental materia
Observation of mixed anisotropy in the critical susceptibility of an ultrathin magnetic film
Measurements of the magnetic susceptibility of Fe/W(110) films with thickness
in the range of 1.6 to 2.4 ML Fe, show that in addition to the large response
along the easy axis associated with the Curie transition, there is a much
smaller, paramagnetic hard axis response that is not consistent with the 2D
anisotropic Heisenberg model used to describe homogeneous in-plane ferromagnets
with uniaxial anisotropy. The shape, amplitude, and peak temperature of the
hard axis susceptibility, as well as its dependence upon layer completion close
to 2.0 ML, indicate that inhomogeneities in the films create a system of mixed
anisotropy. A likely candidate for inhomogeneities that are magnetically
relevant in the critical region are the closed lines of step edges associated
with the incomplete layers. According to the Harris criterion, the existence of
magnetically relevant inhomogeneities may alter the critical properties of the
films from those of a 2D Ising model. Experiments in the recent literature are
discussed in this context.Comment: 9 two-column pages, 6 figures. This replacement has a new title and
abstract, and one additional figur
Glycocalyx of Epidermal Cells in Vitro: Demonstration and Enzymatic Removal
Guinea-pig epidermal cells in culture possess a glycocalyx coat similar to that in vivo, as revealed by the ruthenium red staining technique. Trypsin. phospholipase C, and lysozyme do not produce any changes of the glycocalyx, while hyaluronidase and neuraminidase lead to partial and subcomplete removal, respectively. Cells stripped of their glycocalyx coat by neuraminidase do not detach from the support and do not show any signs of toxicity. There is complete reconstitution of the glycocalyx within 24 hr
Optical absorption of non-interacting tight-binding electrons in a Peierls-distorted chain at half band-filling
In this first of three articles on the optical absorption of electrons in
half-filled Peierls-distorted chains we present analytical results for
non-interacting tight-binding electrons. We carefully derive explicit
expressions for the current operator, the dipole transition matrix elements,
and the optical absorption for electrons with a cosine dispersion relation of
band width and dimerization parameter . New correction
(``''-)terms to the current operator are identified. A broad band-to-band
transition is found in the frequency range whose shape
is determined by the joint density of states for the upper and lower Peierls
subbands and the strong momentum dependence of the transition matrix elements.Comment: 17 pages REVTEX 3.0, 2 postscript figures; hardcopy versions before
May 96 are obsolete; accepted for publication in The Philosophical Magazine
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