4,125 research outputs found
Museums and Heritage Collections in the Cultural Economy : The Challenge of Addressing Wider Audiences and Local Communities
Although more museums are opening now than at any time in the past, too little attention has been paid to the concrete ways in which cultural processes of commoditisation affect heritage production. How can collections speak to wider audiences as well as to local communities in ways that are economically sustainable? This is not a question that invites simple solutions. Turning to ethnographic fieldwork and interviews, this article focuses on The Nordic Heritage Museum in Seattle and Skokloster Castle near Stockholm to explore how these institutions negotiate public participation, engage new audiences, and adapt their operations to meet the demands of the cultural economy they operate in. Drawing on critical cultural theory, the article highlights how different cultural and economic contexts affect museums’ potential to develop, expand, and meet their objectives. The study explains how two particular museums struggle to open their collections to broader publics, which can be understood as part of a wider process of democratisation
Spatial and Temporal Modalities of Everyday Integration
Abstract in Undetermined A presentation of theory, method and eight instructive case-studies regarding the premises for everyday integration within and across the urban centers of the Oresund Region
Activity-Dependent β-Adrenergic Modulation of Low Frequency Stimulation Induced LTP in the Hippocampal CA1 Region
Abstractβ-Adrenergic receptor activation has a central role in the enhancement of memory formation that occurs during heightened states of emotional arousal. Although β-adrenergic receptor activation may enhance memory formation by modulating long-term potentiation (LTP), a candidate synaptic mechanism involved in memory formation, the cellular basis of this modulation is not fully understood. Here, we report that, in the CA1 region of the hippocampus, β-adrenergic receptor activation selectively enables the induction of LTP during long trains of 5 Hz synaptic stimulation. Protein phosphatase inhibitors mimic the effects of β-adrenergic receptor activation on 5 Hz stimulation–induced LTP, suggesting that activation of noradrenergic systems during emotional arousal may enhance memory formation by inhibiting protein phosphatases that normally oppose the induction of LTP
Recommended from our members
A Study of the Effect of Short-Term Group Counseling on the Self Concept of College Students
The purpose of this thesis is to see if a significant change in the self concept of college students can be brought about through short term group counseling
Recommended from our members
Mycorrhizal and other root endophytic fungi of lupines in the Pacific Northwest
We investigated the root endophytic fungi of lupine using
four approaches: (1) occurrence of fungal colonization in field-collected
roots; (2) growth response of L. latifolius to inoculation
with two types of fungi; (3) structure of root colonizations of
Pinus and Lupinus by Phialocephala fortinii, a septate endophytic
fungus of lupine; and (4) comparison root morphology, mycorrhizal
colonization and natural ¹⁵5N-abundance N₂ fixation of three
legumes. In part 1, three species of Lupinus were never observed
to have fungal colonization; nine species were colonized by VA
mycorrhizal fungi; seven species were colonized by fungi with
septate hyphae which often formed intracellular scierotia, here
called septate endophytes. In part 2, shoot weight of 16 week old
L. latifolius seedlings in the greenhouse was significantly
reduced by Glomus spp. in one experiment; p. fortinii significantly
increased nodule weight in one experiment and reduced it in the
other. In part 3, P. fortinii colonized root epidermal and cortical
cells in the root hair zone on ultimate lateral pine roots, as well
as cortical and epidermal cells of primary roots of Pinus and
Lupinus. Fungal colonization was inter- and intracellular with
scierotia forming in cells of both hosts. Labyrinthine tissue, a
type of fungal differentiation which occurs in the Hartig net of
ectomycorrhizae, formed sporadically on pine roots. In part four,
Roots of Lupinus albicaulis cv. hederma had a significantly larger
proportion of coarse roots (> 1 mm diameter) and significantly
less mycorrhizal colonization than two other legumes, Medicago
lupinula and Trifolium hybridum. Estimated aboveground N
derived from fixation ranged from 6.1 to 39.9 kg per hectare
(average = 22.0 kg/ha) and did not vary significantly among
species
The Transparency of the Universe Limited by Ly-alpha Clouds
The brightnesses of supernovae are commonly understood to indicate that
cosmological expansion is accelerating due to dark energy. However the entire
discussion presumes a perfectly transparent universe because no effects of
reddening associated with the interstellar extinction law are seen. We note
that with two kinds of dark matter (baryonic and non-baryonic) strongly
dominating the known mass of the universe, it is seriously premature to assume
that these dark matter components have not reduced the transmission of the
universe for cosmological sources.
We show that the long-known clouds, if nucleated by the
population of baryonic dark matter primordial planetoids indicated by quasar
microlensing, would act as spherical lenses and achromatically fade
cosmologically distant sources. We attempt to estimate the amount of this
cosmological fading, but ultimately the calculation is limited by lack of a
satisfactory model for the tenuous outer parts of a primordial planetoid. We
also consider the effects of such cosmological fading on the light of quasars.Comment: 8-Page article submitted to Astronomical Jouna
- …