1,721,003 research outputs found
Infrared Imaging: a New Process Analytical Technology for Real Time Monitoring and Control of a Freeze-Drying Process
Full text linkL'abstract è presente nell'allegato / the abstract is in the attachmen
Endowment effects at different time scenarios: the role of ownership and possession
Full text linkThe central issue of the wide literature about the endowment effect is the search for an explanation of the fact
that the selling price of a good will be higher than that at which a person is willing to buy that same good,
once they own it. The experimental evidence is not unanimous in replicating the results found by Kahneman
et al. (1990 and 1991). The challenge is that of disentangling the several determinants that may be at work in
generating the final effect, as the loss aversion is not considered the only explanation.
We dig deeper by examining two of these likely determinants which remain understudied: the first is the
impact that the amount of time of ownership can have on the endowment effect. The second is the type of
item (non-material good and exchange goods) used to test the effect. Through an online questionnaire we
investigate these aspects by using three different goods: a mug, an Amazon Gift Card and a quarterly
subscription to Spotify. We also test whether the endowment effect occurs in different time scenarios, that is
if participants imagine to own the good for one day, one week or one month.
We find that the endowment effect clearly appears for all types of goods while less clear results take shape
when considering the duration of the ownership
Computer-implemented method for automated planning deployment of radio communication devices in an environment
No full textA computer-implemented method for automated planning the deployment of radio communication devices in an environment is disclosed, comprising:
a) providing a map of the environment including a set of
elementary areas, each elementary area representing a
location of the environment suitable to host a radio communication device, wherein a partition of the set of elementary areas represents a plurality of individuals of a
population in a genetic representation of a solution domain to the deployment of radio communication devices
in the environment, each elementary area corresponding
to a gene of an individual that may take on one of a binary
set of values including a first value representative of the
presence of a radio communication device at a location
of the environment corresponding to the elementary area, and a second value representative of the absence of
a radio communication device at a location of the environment corresponding to the elementary area;
b) defining a fitness function for calculating a fitness score
of a population of individuals depending upon predetermined metrics comprising at least the maximization of
the distance between radio communication devices in
the environment;
c) setting a seed population of candidate individuals by
generating random values of the genes of the individuals;
d) calculating a fitness score for the seed population of
candidate individuals based on the fitness function;
e) applying at least one predetermined evolutionary step
to at least a subset of the seed population of candidate
individuals so as to determine a next generation population;
f) calculating a fitness score for the next generation population and comparing the fitness score of the next generation population with the fitness score of the seed population, and in response to determining that the fitness
score for the next generation population differs from the
fitness score of the seed population for a value greater
than a predetermined threshold value indicative of a termination condition,
g) considering the next generation population as the seed
population and iterating steps
e) and f),
and
in response to determining that the fitness score for the
next generation population differs from the fitness score
of the seed generation population for a value lower than
a predetermined threshold value indicative of a termination condition,
h) determining locations of the environment for the deployment of the radio communication devices at the elementary areas of the map corresponding to the genes
of the individuals of the determined next generation population that have the value representative of the presence of a radio communication device
Methods for locating a mobile radiocommunication device or passive object in a confined environment
No full textMethods are provided for locating a mobile radio communication device with a receiver detecting electromagnetic identification signals broadcast by transmitters in a confined environment, or an object with a transmitter periodically broadcasting an electromagnetic identification signal detectable by a plurality of receivers of a localization infrastructure. The receiver of the mobile radiocommunication device, or the plurality of receivers of the localization infrastructure, determine identification data indicative of strength of received identification signals, forming an identification data matrix which is processed to obtain an identification data matrix with reduced noise, from which a characteristic identification vector is extracted including a characteristic identification data element for each transmitter or receiver. Position coordinates of the mobile radio communication device or of the object are determined by minimizing an error in calculating distances between position of the mobile radio communication device, or of the object, and position of at least three transmitters, respectively receivers
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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