Rating mechanisms for sustainability of crowdsourcing platforms

Crowdsourcing leverages the diverse skill sets of large collections of individual contributors to solve problems and execute projects, where contributors may vary significantly in experience, expertise, and interest in completing tasks. Hence, to ensure the satisfaction of its task requesters, most existing crowdsourcing platforms focus primarily on supervising contributors\u27 behavior. This lopsided approach to supervision negatively impacts contributor engagement and platform sustainability

Hacia una tecnología de apoyo conductual "no aversivo"

En este artículo se hace una introducción del tratamiento conductual no aversivo. Se sugieren importantes definiciones y se presentan tres elementos fundamentales: a) un emergente conjunto de procedimientos para apoyar a personas con trastornos conductuales graves; b) criterios de validación social que insisten en la dignidad de las personas; y c) una recomendación de que se prohíban o limiten ciertas estrategias. Estos elementos se definen con la esperanza de que provoquen ulteriores debates y análisis empíricos del apoyo conductual positivo

Hacia una tecnología de apoyo conductual "no aversivo"

En este artículo se hace una introducción del tratamiento conductual no aversivo. Se sugieren importantes definiciones y se presentan tres elementos fundamentales: a) un emergente conjunto de procedimientos para apoyar a personas con trastornos conductuales graves; b) criterios de validación social que insisten en la dignidad de las personas; y c) una recomendación de que se prohíban o limiten ciertas estrategias. Estos elementos se definen con la esperanza de que provoquen ulteriores debates y análisis empíricos del apoyo conductual positivo

Crowdsourcing in China: Exploring the Work Experience of Solo Crowdworkers and Crowdfarm Workers

Recent research highlights the potential of crowdsourcing in China. Yet very few studies explore the workplace context and experiences of Chinese crowdworkers. Those that do, focus mainly on the work experiences of solo crowdworkers but do not deal with issues pertaining to the substantial amount of people working in ‘crowdfarms’. This article addresses this gap as one of its primary concerns. Drawing on a study that involves 48 participants, our research explores, compares and contrasts the work experiences of solo crowdworkers to those of crowdfarm workers. Our findings illustrate that the work experiences and context of the solo workers and crowdfarm workers are substantially different, with regards to their motivations, the ways they engage with crowdsourcing, the tasks they work on, and the crowdsourcing platforms they utilize. Overall, our study contributes to furthering the understandings on the work experiences of crowdworkers in China

Designing for Diagnosing

When faced with anything out of the ordinary, faulty or suspicious, the work of determining and categorizing the trouble, and scoping for what to do about it (if anything) often go hand in hand – this is diagnostic work. In all its expert and non-expert forms diagnostic work is often both intellectual and embodied, collaborative and distributed, and ever more deeply entangled with technologies. Yet, it is often poorly supported by them. In this special issue we show that diagnostic work is an important and pervasive aspect of people's activities at work, at home, and on the move. The papers published in this Special Issue come from a range of domains including, ambulance dispatch, a friendly fire incident and anomaly response for the NASA space shuttle; software, network and photocopier troubleshooting; and users attempting to use a new travel management system. These papers illustrate the variety of work that may be thought of as diagnostic. We hope that bringing a focus on diagnostic work to these diverse practices and situations opens up a rich vein of inquiry for CSCW scholars, designers, and users

Proceedings of 16th IFIP TC 13 International Conference on Human Computer Interaction (INTERACT 2017)

International audienceThe four-volume set LNCS 10513—10516 constitutes the proceedings of the 16th IFIP TC 13 International Conference on Human-Computer Interaction, INTERACT 2017, held in Mumbai, India, in September 2017. The total of 68 papers presented in these books was carefully reviewed and selected from 221 submissions. The contributions are organized in topical sections named: Part I: adaptive design and mobile applications; aging and disabilities; assistive technology for blind users; audience engagement; co-design studies; cultural differences and communication technology; design rationale and camera-control. Part II: digital inclusion; games; human perception, cognition and behavior; information on demand, on the move, and gesture interaction; interaction at the workplace; interaction with children. Part III: mediated communication in health; methods and tools for user interface evaluation; multi-touch interaction; new interaction techniques; personalization and visualization; persuasive technology and rehabilitation; and pointing and target selection. Part IV: security and trust; social media and design innovation; UX adoption in the organizations; virtual reality and feeling of immersion; case studies; courses; demonstrations; interactive posters; field trips

Data from: Vitamin D receptor gene expression and function in a South African population: ethnicity, vitamin D and FokI

Polymorphisms of the vitamin D receptor gene (VDR) have been associated inconsistently with various diseases, across populations of diverse origin. The T(f) allele of the functional SNP FokI, in exon 2 of VDR, results in a longer vitamin D receptor protein (VDR) isoform, proposed to be less active. Genetic association of VDR with disease is likely confounded by ethnicity and environmental factors such as plasma 25(OH)D3 status. We hypothesized that VDR expression, VDR level and transactivation of target genes, CAMP and CYP24A1, depend on vitamin D, ethnicity and FokI genotype. Healthy volunteers participated in the study (African, n = 40 and White, n = 20). Plasma 25(OH)D3 levels were quantified by LC-MS and monocytes cultured, with or without 1,25(OH)2D3. Gene expression and protein level was quantified using qRT-PCR and flow cytometry, respectively. Mean plasma 25(OH)D3 status was normal and not significantly different between ethnicities. Neither 25(OH)D3 status nor 1,25(OH)2D3 supplementation significantly influenced expression or level of VDR. Africans had significantly higher mean VDR protein levels (P<0.050), nonetheless transactivated less CAMP expression than Whites. Genotyping the FokI polymorphism by pyrosequencing together with HapMap data, showed a significantly higher (P<0.050) frequency of the CC genotype in Africans than in Whites. FokI genotype, however, did not influence VDR expression or VDR level, but influenced overall transactivation of CAMP and 1,25(OH)2D3-elicited CYP24A1 induction; the latter, interacting with ethnicity. In conclusion, differential VDR expression relates to ethnicity, rather than 25(OH)D3 status and FokI genotype. Instead, VDR transactivation of CAMP is influenced by FokI genotype and, together with ethnicity, influence 1,25(OH)2D3-elicited CYP24A1 expression. Thus, the expression and role of VDR to transactivate target genes is determined not only by genetics, but also by ethnicity and environment involving complex interactions which may confound disease association

Data for Vitamin D receptor gene expression and function in a South African population

The raw data presented is in excel format with sheet one containing the data of the larger study comprising 60 South African individuals, while sheet two contains data for a smaller study in which the effect of increased vitamin D on VDR function was assessed (n = 8)