14,071 research outputs found
Ordinary self-Consciousness
âthe thinking about others thinking of us... excites a blushâ Darwin ([1872] 1965, 325) Ordinary self-consciousness When one walks into a room full of strangers one may describe oneself as âfeeling self-conscious.â To feel self-conscious is to be conscious of oneself as an object represented by others. It seems to me that this kind of self-consciousness is a pervasive phenomenon that is worthy of our attention. It has, however, been rather overlooked in philosophy. When philosophy has focused on self-consciousness it has been the kind of self-consciousness that characterizes our ability to think about ourselves in the first person. While that ability might be required for feeling self-conscious, the latter self-consciousness is I think a distinct and important phenomenon. In this chapter I will explore the nature of what I will call âordinary self-consciousnessâ (OSC) and offer an analysis that aims to identify its key components. My main aim is to identify, and to look closely at the phenomenon. However, I will also raise the suggestion that the phenomenon has a crucial role to play in explaining and understanding the nature of the self-conscious emotions of guilt, shame, pride, and embarrassment. Darwin has tended to be slightly mocked by psychologists of the emotions for his tendency to treat all self-conscious emotions as if they were like embarrassment, and to treat embarrassment as merely being the focus of attention of others. Surely, not all emotions that involve âthe thinking about others thinking of usâ excite the blush associated with embarrassment, and surely more is needed for embarrassment than just being the focus of others. Guilt, shame, pride, and hubris all involve others thinking about us, but often do not, and certainly need not, make us blush. It is of course right that not all self-conscious emotions are like embarrassment. Nevertheless, I think that Darwin might be right in thinking that a relatively simple self-conscious emotion is at the heart of the family of self-conscious emotions. It is not that the relevant emotion is an emotion of which the other self-conscious emotions are a variety. Rather it is what we might call an âur-self-conscious emotionâ â an emotion which will enable us to understand the others, and out of which the others develop. Nor do I think the relevant emotion is embarrassment, rather it is ordinary self-consciousness. I will not, in this piece, try to account for the particular relations between ordinary self-conscious and the distinct self-conscious emotions. Rather, I will table a general hypothesis that ordinary self-consciousness is a phenomenon that has a role to play in our ability to have self-conscious emotions at all
Strongly correlated fermions on a kagome lattice
We study a model of strongly correlated spinless fermions on a kagome lattice
at 1/3 filling, with interactions described by an extended Hubbard Hamiltonian.
An effective Hamiltonian in the desired strong correlation regime is derived,
from which the spectral functions are calculated by means of exact
diagonalization techniques. We present our numerical results with a view to
discussion of possible signatures of confinement/deconfinement of fractional
charges.Comment: 10 pages, 10 figure
Towards predicting post-editing productivity
Machine translation (MT) quality is generally measured via automatic metrics, producing scores that have no meaning for translators who are required to post-edit MT output or for project managers who have to plan and budget for transla- tion projects. This paper investigates correlations between two such automatic metrics (general text matcher and translation edit rate) and post-editing productivity. For the purposes of this paper, productivity is measured via processing speed and cognitive measures of effort using eye tracking as a tool. Processing speed, average fixation time and count are found to correlate well with the scores for groups of segments. Segments with high GTM and TER scores require substantially less time and cognitive effort than medium or low-scoring segments. Future research involving score thresholds and confidence estimation is suggested
Tracking Pacific bluefin tuna (Thunnus thynnus orientalis) in the northeastern Pacific with an automated algorithm that estimates latitude by matching sea-surface-temperature data from satellites with temperature data from tags on fish
Data recovered from 11 popup satellite archival tags and 3
surgically implanted archival tags were used to analyze the movement patterns of juvenile northern bluefin tuna (Thunnus thynnus orientalis) in the eastern Pacific. The light sensors on archival and pop-up satellite transmitting
archival tags (PSATs) provide data on the time of sunrise
and sunset, allowing the calculation of an approximate geographic position of the animal. Light-based estimates
of longitude are relatively robust but latitude estimates are prone to large degrees of error, particularly near the times of the equinoxes and when the tag is at low latitudes. Estimating latitude remains a problem for
researchers using light-based geolocation algorithms and it has been suggested that sea surface temperature data from satellites may be a useful tool for refining latitude estimates. Tag data from bluefin tuna were subjected to a newly developed algorithm, called âPSAT Tracker,â which automatically matches sea surface temperature data from the tags with sea surface temperatures recorded by satellites.
The results of this algorithm compared favorably to the estimates of latitude calculated with the lightbased
algorithms and allowed for estimation of fish positions during times of the year when the lightbased algorithms failed. Three near one-year tracks produced by PSAT tracker showed that the fish range from the CaliforniaâOregon border
to southern Baja California, Mexico, and that the majority of time is spent off the coast of central Baja Mexico. A seasonal movement pattern was evident; the fish spend winter and spring off central Baja California, and summer through fall is spent moving northward to Oregon and returning to Baja California
Experimental Quantum Process Discrimination
Discrimination between unknown processes chosen from a finite set is
experimentally shown to be possible even in the case of non-orthogonal
processes. We demonstrate unambiguous deterministic quantum process
discrimination (QPD) of non-orthogonal processes using properties of
entanglement, additional known unitaries, or higher dimensional systems. Single
qubit measurement and unitary processes and multipartite unitaries (where the
unitary acts non-separably across two distant locations) acting on photons are
discriminated with a confidence of in all cases.Comment: 4 pages, 3 figures, comments welcome. Revised version includes
multi-partite QP
Heralding two- and four-photon path entanglement on chip
Generating quantum entanglement is not only an important scientific endeavor,
but will be essential to realizing quantum-enhanced technologies, in
particular, quantum-enhanced measurements with precision beyond classical
limits. We investigate the heralded generation of multiphoton entanglement for
quantum metrology using a reconfigurable integrated waveguide device in which
projective measurement of auxiliary photons heralds the generation of
path-entangled states. We use four and six-photon inputs, to analyze the
heralding process of two- and four-photon NOON states-a superposition of N
photons in two paths, capable of enabling phase supersensitive measurements at
the Heisenberg limit. Realistic devices will include imperfections; as part of
the heralded state preparation, we demonstrate phase superresolution within our
chip with a state that is more robust to photon loss
Negotiating Relationally: The Dynamics of the Relational Self In Negotiations
Although negotiation research is thriving, it has been criticized as having an arelational biasâemphasizing autonomy, competition, and rationality over interdependence, cooperation, and relationality. In this article, we advance a new model of relationality in negotiation. Drawing on research in social psychology, we describe the construct of relational self-construals (RSC) and present a temporal model of RSC and negotiation. After delineating the conditions through which RSC becomes accessible in negotiation and conditions that inhibit its use, we discuss how RSC affects negotiators\u27 pre-negotiation psychological states, early and later tactics, and negotiation outcomes. We illustrate a number of distinct relational dynamics that can occur based on the dyadic composition of RSC, each of which brings distinct benefits and costs to the negotiation table. Implications for the science and practice of negotiation are discussed
Quantum gate characterization in an extended Hilbert space
We describe an approach for characterizing the process of quantum gates using
quantum process tomography, by first modeling them in an extended Hilbert
space, which includes non-qubit degrees of freedom. To prevent unphysical
processes from being predicted, present quantum process tomography procedures
incorporate mathematical constraints, which make no assumptions as to the
actual physical nature of the system being described. By contrast, the
procedure presented here ensures physicality by placing physical constraints on
the nature of quantum processes. This allows quantum process tomography to be
performed using a smaller experimental data set, and produces parameters with a
direct physical interpretation. The approach is demonstrated by example of
mode-matching in an all-optical controlled-NOT gate. The techniques described
are non-specific and could be applied to other optical circuits or quantum
computing architectures.Comment: 4 pages, 2 figures, REVTeX (published version
Dynamics of the Lyman alpha and C IV emitting gas in 3C 273
In this paper we study the variability properties of the Lyman alpha and C IV
emission lines in 3C273 using archival IUE observations. Our data show for the
first time the existence of variability on time scales of several years. We
study the spatial distribution and the velocity field of the emitting gas by
performing detailed analyses on the line variability using correlations, 1D and
2D response functions, and principal component analysis. In both lines we find
evidence for two components, one which has the dynamic properties of gas in
Keplerian motion around a black hole with a mass of the order of 10^9 Mo, and
one which is characterized by high, blue-shifted velocities at large lag. There
is no indication of the presence of optically thick emission medium neither in
the Lya, nor in the Civ response functions. The component characterized by
blue-shifted velocities, which is comparatively much stronger in Civ than in
Lya, is more or less compatible with being the result of gas falling towards
the central black hole with free-fall acceleration. We propose however that the
line emission at high, blue-shifted velocities is better explained in terms of
entrainment of gas clouds by the jet. This gas is therefore probably
collisionally excited as a result of heating due to the intense infrared
radiation from the jet, which would explain the strength of this component in
Civ relative to Lya. This phenomenon might be a signature of disk-jet
interaction.Comment: 16 pages, 10 figures. Accepted for publication in ApJ. Uses aaste
Thermal radio emission from novae & symbiotics with the Square Kilometre Array
The thermal radio emission of novae during outburst enables us to derive
fundamental quantities such as the ejected mass, kinetic energy, and density
profile of the ejecta. Recent observations with newly-upgraded facilities such
as the VLA and e-MERLIN are just beginning to reveal the incredibly complex
processes of mass ejection in novae (ejections appear to often proceed in
multiple phases and over prolonged timescales). Symbiotic stars can also
exhibit outbursts, which are sometimes accompanied by the expulsion of material
in jets. However, unlike novae, the long-term thermal radio emission of
symbiotics originates in the wind of the giant secondary star, which is
irradiated by the hot white dwarf. The effect of the white dwarf on the giant's
wind is strongly time variable, and the physical mechanism driving these
variations remains a mystery (possibilities include accretion instabilities and
time-variable nuclear burning on the white dwarf's surface).
The exquisite sensitivity of SKA1 will enable us to survey novae throughout
the Galaxy, unveiling statistically complete populations. With SKA2 it will be
possible to carry out similar studies in the Magellanic Clouds. This will
enable high-quality tests of the theory behind accretion and mass loss from
accreting white dwarfs, with significant implications for determining their
possible role as Type Ia supernova progenitors. Observations with SKA1-MID in
particular, over a broad range of frequencies, but with emphasis on the higher
frequencies, will provide an unparalleled view of the physical processes
driving mass ejection and resulting in the diversity of novae, whilst also
determining the accretion processes and rates in symbiotic stars.Comment: 13 pages, 3 figures, in proceedings of "Advancing Astrophysics with
the Square Kilometre Array", PoS(AASKA14)116, in pres
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