SimInf: An R package for Data-driven Stochastic Disease Spread Simulations

We present the R package SimInf which provides an efficient and very flexible framework to conduct data-driven epidemiological modeling in realistic large scale disease spread simulations. The framework integrates infection dynamics in subpopulations as continuous-time Markov chains using the Gillespie stochastic simulation algorithm and incorporates available data such as births, deaths and movements as scheduled events at predefined time-points. Using C code for the numerical solvers and OpenMP to divide work over multiple processors ensures high performance when simulating a sample outcome. One of our design goal was to make SimInf extendable and enable usage of the numerical solvers from other R extension packages in order to facilitate complex epidemiological research. In this paper, we provide a technical description of the framework and demonstrate its use on some basic examples. We also discuss how to specify and extend the framework with user-defined models.Comment: The manual has been updated to the latest version of SimInf (v6.0.0). 41 pages, 16 figure

Ensuring Smallholder Farmers’ Food Security through Homegarden Agroforestry System in Ethiopia

Homegarden is one form of traditional agroforestry systems and involving deliberate management of multipurpose trees and shrubs in close association with annual and perennial agricultural crops and livestock within the compounds of individual houses managed by family labor. The presence of trees in the homegarden agroforestry system gives multiple services of timber, firewood, food and fodder and improving ecosystems and nutrient cycle through litter fall and decomposition. Homegardens are characterized by high species diversity and usually 3-4 vertical canopy strata tree layers; upper story, herbaceous layer near the ground and intermediate layers in between with the main purpose of subsistence production and sale for cash income. The main objective of this paper is to highlight the multiple role of homegarden agroforestry system for ensuring and improving food security of smallholder farmers’ in Ethiopia. The reason for homegarden agroforestry system includes; potential for climate change adaptation and mitigation, more diversity of species and their multifunctional roles, utilization efficiency, productivity and social value. Homegardens practice serves critical functions in fulfilling community and household needs ranging from food provision and food security to supplementing the family nutritional status, ensuring primary healthcare, income generation and other utility functions. It plays an important role in the food security by supplying of varied products throughout the seasons. Identify appropriate intervention strategies for the introduction and expansion of the homegarden to other crop producing areas; improving the production, processing, handling, and marketing of products from homegarden agroforestry systems, improving nutrition and health of households through fruit tree based homegarden agroforestry systems in the cereal dominated production system will need further consideration and integration of homegarden agroforestry systems. Keywords:Agroforestry, Homegarden, Role of homegarden DOI: 10.7176/JNSR/14-7-03 Publication date:May 31st 202

Medicine murder of people with albinism in Tanzania – how casino capitalism creates rumorscapes and occult economies

In 2007, a spate of killings of people with albinism in Northwest Tanzania placed the country in the international limelight. Rumors that the bones of people with albinism were a necessary ingredient in wealth generating magic potions provoked the killings which had no precedents in Tanzania or the local Sukuma culture. This working paper places the rumors in a wider context of living with albinism in Tanzania as well as a general retreat to magic in the face of economic distress. It is argued that the specific nature of the mining and fishing industries in Northwest Tanzania as examples of casino capitalism brings about ‘rumorscapes’, in which stories from near and far are exchanged, fused, adapted and, by some ‘witchdoctors’, turned into viable business options. The rumors and the killings must be understood as a new phenomenon, not as a retreat to traditional modi operandi from local Sukuma magic. Only by addressing the uncertainties faced by people working in the fishing and mining industries will it be possible to prevent such murders in the future.Im Jahr 2007 zog Tansania durch eine Serie an Mordfällen an Menschen mit Albinismus in Nordwesttansania international Aufmerksamkeit auf sich. Gerüchte, dass die Knochen der Menschen mit Albinismus ein zwingender Bestanteil von magischen Mitteln, die Reichtum versprachen, seien, provozierten diese Morde, die keine Vorläufer in Tansania oder der lokalen Ethnie der Sukuma hatten. Dieses Working Paper erläutert die Entstehung der Gerüchte vor dem Hintergrund, was es bedeutet, in Tansania mit Albinismus zu leben und untersucht sie im Hinblick auf eine häufiger auftretende Tendenz, sich angesichts ökonomischer Unsicherheit auf Magie zu besinnen. Es wird argumentiert, dass die Besonderheiten des Bergbaus und des Fischfangs als ‚casino capitalism‘ ein internationales Fluidum an Gerüchten (‚rumorscape‘) entstehen lassen, innerhalb dessen Geschichten von nah und fern ausgetauscht, fusioniert, adaptiert und von einigen ‚witchdoctors‘ zu erträglichen Geschäftsmodellen gemacht werden. Die Gerüchte und Morde müssen als neues Phänomen begriffen werden, nicht als eine Rückbesinnung auf traditionelle modi operandi der Magie der lokalen Sukuma. Erst, wenn die Unsicherheiten der Leute, die im Bergbau und Fischfang arbeiten, beseitigt werden, wird es möglich sein, solche Morde in Zukunft zu verhindern

Development of linguistic linked open data resources for collaborative data-intensive research in the language sciences

Making diverse data in linguistics and the language sciences open, distributed, and accessible: perspectives from language/language acquistiion researchers and technical LOD (linked open data) researchers. This volume examines the challenges inherent in making diverse data in linguistics and the language sciences open, distributed, integrated, and accessible, thus fostering wide data sharing and collaboration. It is unique in integrating the perspectives of language researchers and technical LOD (linked open data) researchers. Reporting on both active research needs in the field of language acquisition and technical advances in the development of data interoperability, the book demonstrates the advantages of an international infrastructure for scholarship in the field of language sciences. With contributions by researchers who produce complex data content and scholars involved in both the technology and the conceptual foundations of LLOD (linguistics linked open data), the book focuses on the area of language acquisition because it involves complex and diverse data sets, cross-linguistic analyses, and urgent collaborative research. The contributors discuss a variety of research methods, resources, and infrastructures. Contributors Isabelle Barrière, Nan Bernstein Ratner, Steven Bird, Maria Blume, Ted Caldwell, Christian Chiarcos, Cristina Dye, Suzanne Flynn, Claire Foley, Nancy Ide, Carissa Kang, D. Terence Langendoen, Barbara Lust, Brian MacWhinney, Jonathan Masci, Steven Moran, Antonio Pareja-Lora, Jim Reidy, Oya Y. Rieger, Gary F. Simons, Thorsten Trippel, Kara Warburton, Sue Ellen Wright, Claus Zin

Associates or zamestnanci? Language choice, attitudes and code-switching practices: The case of workplace email communication in Slovakia

[ES] El cambio de co'digo esta' sujeto a una gran variedad de factores que dependen del medio de comunicacio'n y de la situacio'n comunicativa. En general, segu'n la lingu¿i'stica, el cambio de co'digo ocurre cuando un hablante alterna entre dos o ma's lenguas o variedades de una lengua en una misma conversacio'n. Estas pra'cticas comunicativas se han tratado en muchos contextos, lenguas y contacto entre culturas. Sin embargo, no hay estudios sobre el tema en el contexto eslovaco, de ahi' la relevancia del trabajo recogido en esta tesis doctoral que tiene como fin u'ltimo paliar esta escasez de estudios lingu¿i'sticos. En concreto, aqui' analizamos el cambio de co'digo exclusivamente en comunicaciones realizadas por correo electro'nico en un entorno laboral multilingu¿e y multicultural. El estudio se centra en la eleccio'n de lengua, las actitudes hacia una lengua y la mezcla de lenguas en las comunicaciones entre los compan¿eros de trabajo de una multinacional hotelera radicada en Eslovaquia. El ana'lisis examina u'nicamente los correos escritos en eslovaco que presentan cambios de co'digo al ingle's. Debido a la naturaleza multidisciplinar de este proyecto de investigacio'n, asi' como a su cara'cter dual, es decir, el examen de las actitudes hacia una lengua por una parte y las pra'cticas de cambio de co'digo por otra, esta tesis plantea varias preguntas de investigacio'n y tiene una serie de objetivos que pasamos a detallar. El objetivo principal del estudio cuantitativo basado en el cuestionario disen¿ado es examinar hasta que' punto los encuestados son conscientes de los cambios de co'digo al ingle's durante sus comunicaciones, en particular durante sus conversaciones electro'nicas, y determinar las razones por las que se lleva a cabo este cambio de co'digo, sacando a la luz las actitudes hacia este feno'meno lingu¿i'stico. Adema's, dado que los conocimientos que aportan los cuestionarios son generalmente limitados, se ha llevado a cabo un ana'lisis del discurso para observar ma's detalladamente el alcance de los cambios de lengua, los tipos y las funciones que presentan. La metodologi'a empleada, que sigue el me'todo mixto de investigacio'n, se utiliza para analizar las motivaciones y las razones por las que nuestros participantes prefieren usar el ingle's en lugar de su lengua nativa. Asi' pues, esta tesis doctoral recoge el primer ana'lisis completo de este tipo sobre el cambio de co'digo eslovaco/ingle's en la comunicacio'n electro'nica que examina conversaciones aute'nticas por Internet dentro de una corporacio'n. Palabras clave: cambio de co'digo, comunicacio'n electro'nica, correo electro'nico, comunicacio'n en entornos laborales, actitudes hacia la lengua[CA] El canvi de codi esta¿ subjecte a una gran varietat de factors que depenen del mitja¿ de comunicacio' i de la situacio' comunicativa. En general, segons la lingu¿i'stica, el canvi de codi ocorre quan un parlant alterna entre dues o me's llengu¿es o varietats d'una llengua en una mateixa conversa. Aquestes pra¿ctiques comunicatives han estat tractades en molts contexts, llengu¿es i contacte entre cultures. No obstant aixo¿, no hi ha estudis sobre el tema en el context eslovac, d'aqui' la relleva¿ncia del treball recollit en aquesta tesi doctoral que te' com a finalitat u'ltima pal.liar l'escassetat d'estudis lingu¿i'stics sobre el tema. En concret, aci' analitzem el canvi de codi exclusivament en comunicacions realitzades per correu electro¿nic en un entorn laboral multilingu¿e i multicultural. L'estudi se centra en l'eleccio' de llengua, les actituds cap a una llengua i la mescla de llengu¿es en les comunicacions entre els companys de treball d'una multinacional hotelera radicada a Eslova¿quia. L'ana¿lisi examina u'nicament els correus escrits en eslovac que presenten canvis de codi a l'angle's. A causa de la naturalesa multidisciplina¿ria d'aquest projecte d'investigacio', aixi' com al seu cara¿cter dual, e's a dir, l'examen de les actituds cap a una llengua per una part i les pra¿ctiques de canvi de codi per altra, aquesta tesi planteja diverses preguntes d'investigacio' i te' una se¿rie d'objectius que detallarem a continuacio'. L'objectiu principal de l'estudi quantitatiu basat en el qu¿estionari dissenyat e's examinar fins a quin punt les persones enquestades so'n conscients del canvi de codi a l'angle's durant les seues comunicacions, en particular durant les seues converses electro¿niques, i determinar les raons per les quals es duu a terme aquest canvi de codi, traient a la llum les actituds cap a aquest fenomen lingu¿i'stic. A me's, ate's que els coneixements que aporten els qu¿estionaris so'n generalment limitats, s'ha realitzat una ana¿lisi del discurs per a observar me's detalladament l'abast dels canvis de llengua, els tipus i les funcions que representen. La metodologia emprada, que segueix el me¿tode mixt d'investigacio', s'utilitza per a analitzar les motivacions i les raons per les quals els nostres participants prefereixen fer u's de l'angle's en comptes de la seua llengua nativa. Per tant, aquesta tesi doctoral recull la primera ana¿lisi completa d'aquest tipus sobre el canvi de codi eslovac/angle's en la comunicacio' electro¿nica que examina converses aute¿ntiques per Internet dins d'una corporacio'. Paraules clau: canvi de codi, comunicacio' electro¿nica, correu electro¿nic, comunicacio' en entorns laborals, actituds cap a la llengua.[EN] Code-switching (CS) is subject to the wide range of interrelations between medium and situation factors. Generally, from a linguistic point of view, CS occurs when a speaker alternates between two or more languages, or language varieties, in the course of a single conversation. The practice has been noticed all around the world in many contexts, language and culture contact situations. Hence, based on earlier studies of CS phenomenon, but shifting towards a more specific environment, the workplace, the present study aims to fill a considerable gap in scholarly knowledge about the online/ written CS practices of Slovak native speakers in the context of workplace email communication. Therefore, the study focuses on language choice, language attitudes and CS practices among colleagues in a multilingual workplace environment of a multinational hospitality company in Slovakia, focusing solely on the participants' workplace interactions, in particular their email messages written in Slovak (the national language) with switches to English. Due to the interdisciplinary nature of this research project, as well as its dual focus on language attitudes on the one hand and actual CS practices on the other, this thesis addresses a number of research questions and provides a series of analyses centring around the following objectives. The main focus of the quantitative, questionnaire- based study is to examine the participants' metalinguistic awareness of the extent of switching to English during their communication (particularly focusing on their CMC interactions) and to determine their reasons for doing so, while uncovering the attitudes they hold towards this phenomenon. Furthermore, as the depth of knowledge obtained through questionnaire survey is limited, the corpus analysis of email interactions is conducted in order to investigate more closely the extent of switching and the types, forms and functions of CS involved. Employing a mixed method approach in the process, motivations and reasons why our participants choose English over their native language are examined. Hence, the study represents the first comprehensive analysis of its kind on Slovak-English CS in CMC using authentic naturally-occurring computer-mediated corporate interactions. Keywords: code-switching, CMC, email, workplace communication, attitudesThe traineeship was partly funded by Erasmus+ grant, for which I am grateful.Lengyelová, A. (2019). Associates or zamestnanci? Language choice, attitudes and code-switching practices: The case of workplace email communication in Slovakia [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/124352TESI