2,459 research outputs found
Nightmares in the Kitchen: Personal Experience Narratives About Cooking and Food
This thesis explores personal experience narratives about making mistakes in the preparation and serving of food. In order to understand when these narratives, referred to in the text as “kitchen nightmares,” are told, to whom, in what form, and why, one-onone and group ethnographic interviews were conducted. In total, 13 interviews were conducted with 25 individuals (men and women) ranging in age from 19 to 70. Six major themes of kitchen nightmare narratives are identified in Chapter One. Chapter Two explores one of these themes, resistance, in the context of the kitchen nightmare stories of heterosexual married women. Chapter Three illustrates how individuals use kitchen nightmare stories to perform aspects of their identity for one another in group interviews, as well as how group members collaborate to tell these stories and negotiate what matters most about them during their telling
Radar backscattering data for surfaces of geological interest
Radar backscattering data for surfaces of geological interes
The Reapportionment Cases: Cognitive Lag, the Malady and its Cure
The reapportionment cases have been considered by many to be the product of a liberal, activist Court which is endeavoring to reshape America’s political life according to its own views. The authors of this article assert that, to the contrary, the Court actually is reacting to the incontrovertible fact of the modern predominance of urban complexities which have rendered inappropriate our older political boundaries. In this sense, they consider the Court’s decisions conservative rather than liberal- because the Court’s purpose is to maintain a version of federalism along state boundaries which may have become outmoded even before the Court entered the arena
The Reapportionment Cases: Cognitive Lag, the Malady and its Cure
The reapportionment cases have been considered by many to be the product of a liberal, activist Court which is endeavoring to reshape America’s political life according to its own views. The authors of this article assert that, to the contrary, the Court actually is reacting to the incontrovertible fact of the modern predominance of urban complexities which have rendered inappropriate our older political boundaries. In this sense, they consider the Court’s decisions conservative rather than liberal- because the Court’s purpose is to maintain a version of federalism along state boundaries which may have become outmoded even before the Court entered the arena
Na(V)1.5 sodium channel window currents contribute to spontaneous firing in olfactory sensory neurons
Olfactory sensory neurons (OSNs) fire spontaneously as well as in response to odor; both forms of firing are physiologically important. We studied voltage-gated Na+ channels in OSNs to assess their role in spontaneous activity. Whole cell patch-clamp recordings from OSNs demonstrated both tetrodotoxin-sensitive and tetrodotoxin-resistant components of Na+ current. RT-PCR showed mRNAs for five of the nine different Na+ channel α-subunits in olfactory tissue; only one was tetrodotoxin resistant, the so-called cardiac subtype NaV1.5. Immunohistochemical analysis indicated that NaV1.5 is present in the apical knob of OSN dendrites but not in the axon. The NaV1.5 channels in OSNs exhibited two important features: 1) a half-inactivation potential near −100 mV, well below the resting potential, and 2) a window current centered near the resting potential. The negative half-inactivation potential renders most NaV1.5 channels in OSNs inactivated at the resting potential, while the window current indicates that the minor fraction of noninactivated NaV1.5 channels have a small probability of opening spontaneously at the resting potential. When the tetrodotoxin-sensitive Na+ channels were blocked by nanomolar tetrodotoxin at the resting potential, spontaneous firing was suppressed as expected. Furthermore, selectively blocking NaV1.5 channels with Zn2+ in the absence of tetrodotoxin also suppressed spontaneous firing, indicating that NaV1.5 channels are required for spontaneous activity despite resting inactivation. We propose that window currents produced by noninactivated NaV1.5 channels are one source of the generator potentials that trigger spontaneous firing, while the upstroke and propagation of action potentials in OSNs are borne by the tetrodotoxin-sensitive Na+ channel subtypes.This work was aided by support from Boston University, the Rocky Mountain Taste and Smell Center Core for Cellular Visualization and Analysis [National Institute on Deafness and Other Communication Disorders (NIDCD) P30 DC-04657; D. Restrepo, principal investigator], and NIDCD Grants DC-04863 to V. Dionne and DC-006070 to D. Restrepo and T. E. Finger. (Boston University; P30 DC-04657 - Rocky Mountain Taste and Smell Center Core for Cellular Visualization and Analysis [National Institute on Deafness and Other Communication Disorders (NIDCD)]; DC-04863 - Rocky Mountain Taste and Smell Center Core for Cellular Visualization and Analysis [National Institute on Deafness and Other Communication Disorders (NIDCD)]; DC-006070 - Rocky Mountain Taste and Smell Center Core for Cellular Visualization and Analysis [National Institute on Deafness and Other Communication Disorders (NIDCD)])https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4122723/Accepted manuscrip
Lack of Peripherally Induced Tolerance to Established Skin Allografts in Immunologically Reconstituted Scid Mice
The mechanism by which the antigen-specific immune system distinguishes between
foreign antigens (toward which it mounts an immune response) and self-antigens (of
which it is tolerant) is not completely understood. Studies using “superantigens” and
transgenic mice have allowed investigations into some of the mechanisms of clonal
deletion, anergy, and peripheral tolerance. In the present report, we have attempted to
develop a new model system to investigate the possible mechanism(s) of peripheral
tolerance to allografts. In this system, skin grafts from C57BL/6J (B6; H-2b mice are
grafted onto T- and B-lymphocyte-deficient C.B-17-scid/scid (H-2d; hereafter referred to
as scid) mice. Because of their lack of functional lymphocytes, the scid mice readily
accept the allogeneic skin grafts. After the allografts healed, the scid mice were
reconstituted with T-cell-deficient fetal liver from coisogeneic C.B-17-∤/∤ mice or bone
marrow from weanling congenitally athymic BALB/c-nu/nu (H-2d; hereafter referred to
as nude) mice. Upon immunological reconstitution, the scid mice reiected the established
B6 skin allografts, suggesting that an immune system developing in the presence of an
intact peripheral skin allograft fails to develop tolerance to the peripheral allograft. This
model system may be useful for the study of the mechanisms required for the induction
of peripheral tolerance
Spice, culinary tourism, and expressions of whiteness in London, England and Nashville, Tennessee
Using curry in East London in the United Kingdom and hot chicken in Nashville, Tennessee as
case studies, this dissertation explores how ideas of spice and heat in “ethnic” foodways become
linked to conceptions of authenticity and exoticness within the context of culinary tourism.
Drawing on scholarship of folk narrative, culinary tourism, critical whiteness studies, and
vernacular rhetoric, among others, I investigate the ways in which the concept of spice is used
rhetorically in ongoing conversations about links between “ethnic” foods and cultural
appropriation, identity invention, and representation from both local and touristic perspectives. I
have concentrated mainly on how specifically white racial identities are expressed through the
consumption of spicy food within the context of culinary tourism, in which “ethnic” foods are a
primary attraction and are often understood to be non-white. This investigation includes
historical context on both curry in east London and hot chicken in Nashville, interviews with
locals, culinary tourists, and tourism professionals, participant observation on culinary tours in
east London, and analyses of online restaurant reviews in each location. An analysis of these
collected materials reveals that consumers in both locations share a frontier orientation towards
the act of consuming spicy foods that utilizes aspects of the white racial frame (Feagin 2013),
and consumers use the concept of spice to signify that they have had an experience that is
sufficiently or insufficiently exotic. In both locations, the concept of spice also opens up
opportunities for individuals (both locals and tourists) to push back against master narratives
created by tourism agencies and local governments that oversimplify their lived experiences and
understandings of history
Development of prototype abstraction and exemplar memorization
We present a connectionist model of concept learning that integrates prototype and exemplar effects and reconciles apparently conflicting findings on the development of these effects. Using sibling-descendant cascade-correlation networks, we found that prototype effects were more prominent at the beginning of training and decreased with further training. In contrast, exemplar effects steadily increased with learning. Both kinds of effects were also influenced by category structure. Well-differentiated categories encouraged prototype abstraction while poorly structured categories promoted example memorization.Irina Baetu and Thomas R. Shult
Electrical Conductivity of Fermi Liquids. I. Many-body Effect on the Drude Weight
On the basis of the Fermi liquid theory, we investigate the many-body effect
on the Drude weight. In a lattice system, the Drude weight is modified by
electron-electron interaction due to Umklapp processes, while it is not
renormalized in a Galilean invariant system. This is explained by showing that
the effective mass for is defined through the current, not
velocity, of quasiparticle. It is shown that the inequality is required
for the stability against the uniform shift of the Fermi surface. The result of
perturbation theory applied for the Hubbard model indicates that as a
function of the density is qualitatively modified around half filling
by Umklapp processes.Comment: 20 pages, 2 figures; J. Phys. Soc. Jpn. Vol.67, No.
Youth voices on global citizenship: Deliberating across Canada in an online invited space
This article examines the processes of youth engagement in an ‘invited space’ for Canadian secondary school students. The organizers created a participatory citizenship education space in which Canadian students discussed their views and visions and developed their policy position on global citizenship and global citizenship education. The content and process of The National Youth White Paper on Global Citizenship (2015) demonstrated that youth have important policy knowledge and understand they live in a globalized world that includes unacceptable inequalities and oppressions. They also understand that, through acts of citizenship, these conditions can be changed. The article discusses how students were engaged in developing public opinion and working in the public sphere while developing the policy paper on the topic of global citizenship
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