90,216 research outputs found
Quantizing the line element field
A metric with signature (-+++) can be constructed from a metric with
signature (++++) and a double-sided vector field called the line element field.
Some of the classical and quantum properties of this vector field are studied.Comment: 9 page
Testing the Limits of Antidiscrimination Law: The Business, Legal, and Ethical Ramifications of Cultural Profiling at Work
While courts have rarely ruled in favor of plaintiffs bringing discrimination claims based on identity performance, legal scholars have argued that discrimination on the basis of certain cultural displays should be prohibited because it creates a work environment that is heavily charged with ethnic and racial discrimination. Drawing upon empirical studies of diversity management, stereotyping, and group dynamics, we describe how workplace cultural profiling often creates an unproductive atmosphere of heightened scrutiny and identity performance constraints that lead workers (especially those from marginalized groups) to behave in less authentic, less innovative ways in diverse organizational settings
Images of the Origin of Mass
Recent years have brought considerable progress with studies of the
bound-state problem in continuum QCD. A small part of that made with Dyson
Schwinger equations is highlighted herein. Topics covered include:
opportunities provided by precision experimental studies of the (far) valence
region; and capitalising upon new data on hadron elastic and transition form
factors.Comment: 7 pages, 3 figures. Contribution to the Proceedings of MENU 2013 -
13th International Conference on Meson-Nucleon Physics and the Structure of
the Nucleon, Rome, 30 Sept. - 4. Oct. 201
Science on View
Book review of "Envisioning Science: The Design and Craft of the Science Image," by Felice Frankel, MIT Press, 2002
P-model Alternative to the T-model
Standard linguistic analysis of syntax uses the T-model. This model
requires the ordering: D-structure S-structure LF,
where D-structure is the deep structure,
S-structure is the surface structure, and LF is logical form.
Between each of these representations there is movement which alters
the order of the constituent words; movement is achieved using the principles
and parameters of syntactic theory. Psychological analysis of sentence
production is usually either serial or connectionist. Psychological serial
models do not accommodate the T-model immediately so that here a new model
called the P-model is introduced. The P-model is different from previous
linguistic and psychological models. Here it is argued that the LF
representation should be replaced by a variant
of Frege's three qualities (sense, reference, and force),
called the Frege representation or F-representation.
In the F-representation the order of elements is not necessarily the same as
that in LF and it is suggested that the correct ordering is:
F-representation D-structure S-structure.
This ordering appears to lead to a more natural
view of sentence production and processing. Within this framework movement
originates as the outcome of emphasis applied to the sentence. The
requirement that the F-representation precedes the D-structure needs a picture
of the particular principles and parameters which pertain to movement of words
between representations. In general this would imply that there is a
preferred or optimal ordering of the symbolic string in the F-representation.
The standard ordering is retained because the general way of producing
such an optimal ordering is unclear. In this case it is possible to produce
an analysis of movement between LF and D-structure similar to the usual
analysis of movement between S-structure and LF.
It is suggested that a maximal amount of information about
a language's grammar and lexicon is stored,
because of the necessity of analyzing corrupted data
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