73,544 research outputs found
The quotidian mysteries: laundry, liturgy, and \u27women\u27s work\u27
Norris, Kathleen. The quotidian mysteries: laundry, liturgy, and women\u27s work . New York: Paulist Press, 1998
Comparison of an open-hardware electroencephalography amplifier with medical grade device in brain-computer interface applications
Brain-computer interfaces (BCI) are promising communication devices between
humans and machines. BCI based on non-invasive neuroimaging techniques such as
electroencephalography (EEG) have many applications , however the dissemination
of the technology is limited, in part because of the price of the hardware. In
this paper we compare side by side two EEG amplifiers, the consumer grade
OpenBCI and the medical grade g.tec g.USBamp. For this purpose, we employed an
original montage, based on the simultaneous recording of the same set of
electrodes. Two set of recordings were performed. During the first experiment a
simple adapter with a direct connection between the amplifiers and the
electrodes was used. Then, in a second experiment, we attempted to discard any
possible interference that one amplifier could cause to the other by adding
"ideal" diodes to the adapter. Both spectral and temporal features were tested
-- the former with a workload monitoring task, the latter with an visual P300
speller task. Overall, the results suggest that the OpenBCI board -- or a
similar solution based on the Texas Instrument ADS1299 chip -- could be an
effective alternative to traditional EEG devices. Even though a medical grade
equipment still outperforms the OpenBCI, the latter gives very close EEG
readings, resulting in practice in a classification accuracy that may be
suitable for popularizing BCI uses.Comment: PhyCS - International Conference on Physiological Computing Systems,
Jul 2016, Lisbon, Portugal. SCITEPRESS, 201
About the whereabouts of indefinites
The paper characterizes three different domains in the German middle field which are relevant for the interpretation of an indefinite. It is argued that the so-called 'strong' reading of an indefinite is the basic one and that the 'weak' reading needs special licensing which is mirrored by certain syntactic requirements. Some popular claims about the relation between the position and the interpretation of indefinites as well as some claims about scrambling are discussed and rejected. From the findings also follows that the strong reading of an indefinite is independent of its information status
Connectionist Taxonomy Learning
The paper at hand describes an approach to automatise the creation of a class taxonomy. Information about objects, e.g. "a tank is armored and moves by track", but no prior knowledge about taxonomy structure is presented to a connectionist system which organizes itself by means of activation spreading (McClelland and Rumelhart, 1981) and weight adjustments. The resulting connectionist network has a form of a taxonomy sought-after
Realizability Toposes from Specifications
We investigate a framework of Krivine realizability with I/O effects, and
present a method of associating realizability models to specifications on the
I/O behavior of processes, by using adequate interpretations of the central
concepts of `pole' and `proof-like term'. This method does in particular allow
to associate realizability models to computable functions.
Following recent work of Streicher and others we show how these models give
rise to triposes and toposes
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