6 research outputs found
Infected by chicken meat?: A System Dynamics Perspective on the Occurence of Campylobacter in the Chicken Meat Production Chain
No full textEngineering and Policy Analysi
A Required College Wellness Course Changes Beliefs, Attitudes, and Behaviors Related to Physical Activity
No full textWe examined effects of a required college health and wellness course on students’ physical activity (PA) attitudes and behaviors. A survey based on models of behavior change was emailed (September 2016 – May 2017) to all students at a liberal arts college. Of 408 students who responded, 217 had completed the course and 191 had not. Students who had taken the course reported more confidence in their ability to improve their physical fitness; found more encouragement from cues to action; and met recommended guidelines for weekly PA more than students who had not taken the course. Compared to males, females had less confidence in their ability to increase PA and improve fitness and overall health. Females perceived barriers to PA as more discouraging and cues to action as less encouraging. Data showed a required college health and wellness course altered students’ PA attitudes and behaviors
Sur les paquets d'Arthur des groupes classiques et unitaires non quasi-d\'eploy\'es
No full text15 pages, in FrenchNous \'etendons aux groupes orthogonaux et unitaires non quasi-d\'eploy\'es sur un corps local des r\'esultats de J. Arthur et de la premi\`ere auteure \'etablis dans le cas quasi-d\'eploy\'e. En particulier, nous obtenons une classification de Langlands compl\`ete pour les repr\'esentations temp\'er\'ees dans le cas -adique. Nous en d\'eduisons en utilisant l'involution d'Aubert-Schneider-Stuhler un r\'esultat de multiplicit\'e un dans les paquets unipotents, et par des m\'ethodes globales, le m\^eme r\'esultat pour les paquets unipotents dans le cas archim\'edien. We extend to non quasi-split orthogonal and unitary groups over a local field some results of J. Arthur and the first author established in the quasi-split case. In particular, we obtain a full Langlands classification for tempered representations in the -adic case. Using Aubert-Schneider-Stuhler involution, we deduce from this a multiplicity one result for unipotent packets, and by global methods, the same result for unipotent packets in the archimedean case
Sur les paquets d'Arthur des groupes classiques et unitaires non quasi-d\'eploy\'es
No full text15 pages, in FrenchNous \'etendons aux groupes orthogonaux et unitaires non quasi-d\'eploy\'es sur un corps local des r\'esultats de J. Arthur et de la premi\`ere auteure \'etablis dans le cas quasi-d\'eploy\'e. En particulier, nous obtenons une classification de Langlands compl\`ete pour les repr\'esentations temp\'er\'ees dans le cas -adique. Nous en d\'eduisons en utilisant l'involution d'Aubert-Schneider-Stuhler un r\'esultat de multiplicit\'e un dans les paquets unipotents, et par des m\'ethodes globales, le m\^eme r\'esultat pour les paquets unipotents dans le cas archim\'edien. We extend to non quasi-split orthogonal and unitary groups over a local field some results of J. Arthur and the first author established in the quasi-split case. In particular, we obtain a full Langlands classification for tempered representations in the -adic case. Using Aubert-Schneider-Stuhler involution, we deduce from this a multiplicity one result for unipotent packets, and by global methods, the same result for unipotent packets in the archimedean case
The impacts of biosecurity measures on Campylobacter contamination in broiler houses and slaughterhouses in the Netherlands: A simulation modelling approach
No full textIntestinal campylobacteriosis, caused by Campylobacter ingestion, is the most reported zoonosis in the EU; it is societally costly and can lead to more severe sequelae. To reduce Campylobacter infections, biosecurity measures at both farms and slaughterhouses are warranted. However, the potential improvements achieved by these interventions have not been quantified. We used a systems science approach to develop a simulation model, synthesizing information from interviews with stakeholders in the Dutch broiler production industry and the current literature. The model includes both farms and slaughterhouses in a “system of systems,” helping to clarify the complexity of interrelated components of these systems and analyse the impact of various interventions. Insects, transportation crates, farm personnel, and catchers were identified as potential Campylobacter sources and modelled as elements of feedback loops. Insect control, farm hygiene, visitor control, thinning, and transportation control interventions were analysed. The model was shown to accurately describe the seasonality of Campylobacter, which supports its validity. Model simulation revealed that insect control interventions had the strongest impacts, followed by combined farm hygiene and visitor control, and combined thinning and transportation control. Insect control interventions alone reduced the peak percentage of contaminated chickens from 51% to 26% and the peak percentage of highly contaminated (>1000 CFU/g) neck samples of chicken carcasses from 13% to 8%. Implementing all interventions concurrently reduced the peak percentages of contaminated chickens to 5% and highly contaminated chicken neck samples to 2%. These results suggest that multiple biosecurity measures must be implemented to reduce Campylobacter contamination.Policy Analysi
From page to screen : placing hypertext fiction in an historical and contemporary context of print and electronic literary experiments
No full textOnly recently has our perception of the computer, now a familiar and ubiquitous element of
everyday life, changed from seeing it as a mere tool to regarding it as a medium for creative
expression. Computer technologies such as multimedia and hypertext applications have
sparked an active critical debate not only about the future of the book format, ("the late age
of print" {Bolter} is only one term used to describe the shift away from traditional print
media to new forms of electronic communication) but also about the future of literature.
Hypertext Fiction is the most prominent of proposed electronic literary forms and strong
claims have been made about it: it will radically alter concepts of text, author and reader,
enable forms of non-linear writing closer to the associative working of the mind, and make
possible reader interaction with the text on a level impossible in printed text.
So far the debate that has attempted to put hypertext fiction into a historical perspective
has linked it to two developments. Firstly the developments in computer technology that
made hypertext not only possible but also widely accessible and secondly a tradition of
postmodern theory, where characteristics attributed to hypertext echo concepts of
fragmentation, multiplicity and instability that theorists like Barthes and Derrida have
formulated previously and that have led to the notion of hypertext as an "authentic, yet
functional postmodern form" {Roberts}
A third element that is not generally subject to critical evaluation is the practice of
(post)modern writing in which a number of authors consciously break with the linearity of
print conventions in favour for a more fragmented narrative and presentation as well as
actively inviting the reader's participation in what Barthes calls "writerly" text. There are two
reasons why these "proto-hypertexts" have been widely ignored or dismissed: Hypertext is
still widely define as exclusive to the electronic realm and is furthermore generally
perceived in oppositional pairs in contrast to print, i.e. non-linear vs. linear and interactive
vs. passive, which conceptually does not leave room for a study of an "evolution" out of
existing forms of writing practice.
By examining hypertext fiction in a context of print experiments (Cortazar, Borges, B.S.
Johnson, Andreas Okopenko, Raymond Queneau, Miroslav Pavic, Italo Calvino) and also in
a context of other forms of digital literary experimentation (collaborative projects and
computer-generated writing), this thesis aims to, on a diachronic level, reincorporate
hypertext fiction into an evolutionary (though radical) literary tradition and examines the
manner in which concepts which originated in this tradition have been taken over often
very literally and without much redefinition. On the a-historical, synchronic level, this study
explores some of the possible formats for literature in the new electronic textual media:
hypertext fiction, collaborative writing projects, computer-generated writing and the
different challenges these present to our understanding ofliterature.
After an introduction in Chapter 1, Chapter 2 and 3 discuss two of the keywords of
hypertext theory, its "grand narratives' (non-linearity and interactivity) and the
appropriation of the terminology to hypertext theory and to hypertext fiction. Chapter 4
and 5 will look at alternative, though related, approaches to electronic fiction: Chapter 4 will
examine aspects of collaborative writing in both a print and a digital environment while
computer-generated writing stands at the centre of Chapter 5
