The triple task technique for studying writing processes : on which task is attention focused ?

The triple task technique measures the time and cognitive effort devoted to specific writing processes by combining directed retrospection with secondary task reaction time (RT). Writing a text is the primary task and rapidly detecting auditory probes to index cognitive effort is the secondary task. The third task is retrospecting and categorizing the contents of working memory at the time of each probe. The present paper reviews studies on the reactivity and validity of the technique. Further, one recent criticism of the method's validity is tested here: namely, that the primary task for the experimenter is not the primary task for the writer, thus distorting the time and effort measurements. We found that time and effort allocated to planning, translating, executing, evaluating, and revising was the same when the writer was encouraged by instructions to focus either on the speed of responding or the accuracy of retrospection instead of the text itself. Because writing requires sustained thought and attention to produce a cumulative product, it is apparently difficult to make text production anything but the primary task. The triple task technique offers a useful alternative to pause analysis and verbal protocols for investigating the functional features of writing

New Companies' DNA: the Heritage of the Past Industrial Revolutions in Digital Transformation

AbstractThis paper debates the ongoing processes of digital transformation enhanced by the 4th industrial revolution in successful companies which have a long time business history and an international presence. The aim is analyzing how what they have experienced and learned in the 2nd and 3rd industrial revolutions represents key elements that have shaped their DNA and continue to inspire their transformation to the point that the gradual radical change concept is preferred to the concept of disruption. Such learning processes are primary values to transfer in companies' digital transformation in order to implement it efficiently and effectively creating new opportunities at an international level. The paper leverages on an explorative research based on the empirical setting of three international Italian manufacturing companies that have experienced challenges of the 2nd, 3rd and are now facing an important digital transformation process in a worldwide landscape. A qualitative constructive multiple case research design is conducted to evaluate the conceptual model and some considerations emerged from the analysis. The paper also benefits from 30 years of experience of one of the Authors as Business Development Director of big multinational companies accompanying many enterprises during their digital transformation. This study presents an interpretative framework that provides an exploration of main heritages coming from the past industrial revolutions according to three aspects: business drivers, supply view and entrepreneurial model. The emerged evidences can be taken as lessons by international manufacturing companies in order to implement digital transformation enhancing their international competitiveness

Extrusion Additive Manufacturing of PEI Pellets

The simplest, most cost-efficient, and most widespread Additive Manufacturing (AM) technology is Extrusion Additive Manufacturing (EAM). Usually, EAM is performed with filament feedstock, but using pellets instead of filaments yields many benefits, including significantly lower cost and a wider choice of materials. High-performance polymers offer high strength even when produced with AM technique, allowing to produce near-net-shape functional parts. The production of these materials in filament form is still limited and expensive; therefore, in this paper, the possibility of producing AM components with engineering polymers from pellets will be thoroughly investigated. In this work, the effectiveness of a specially designed AM machine for printing high-performance materials in pellet form was tested. The material chosen for the investigation is PEI 1000 which offers outstanding mechanical and thermal properties, giving the possibility to produce with EAM functional components. Sensitivity analyses have been carried out to define a process window in terms of thermal process parameters by observing different response variables. Using the process parameters in the specified range, the additive manufactured material has been mechanically tested, and its microstructure has been investigated, both in dried and undried conditions. Finally, a rapid tool for sheet metal forming has been produced

Comment on ‘The latency period of mesothelioma among a cohort of British asbestos workers (1978–2005)': the effect of left censoring

none4noWe read with extreme interest the article by Frost on mesothelioma latency period among asbestos workers (Frost, 2013). Despite the main aim of the study being to investigate ‘the determinants of mesothelioma latency among a cohort of asbestos workers, paying particular attention to indicators of intensity of asbestos exposure’ (Frost, 2013), the reported lack of evidence of an association between duration of exposure and latency attracted some attention. Commenters argued that right censoring occurring in the underlying cohort could have biased an analysis restricted to cases (Consonni et al, 2014; Mirabelli and Zugna, 2014).openFarioli, A; Mattioli, S; Curti, S; Violante, F SFarioli, A; Mattioli, S; Curti, S; Violante, F

Charge mentale et mobilisation des processus rédactionnels : examen de la procédure de Kellogg

The method used by Kellogg (1987) requires that the writer performs a concurrent task followed by a supplementary task. The subjects must react to auditory signals during writing (the recorded RT's express the weight of the subject's cognitive effort) and then qualify (directed retrospection) the ongoing writing activity (planning, translating or reviewing). The goal of experiment 1 is to test the role of bips distribution (15, 30, 60 sec) on the cognitive load. Experiment 2 tests how the retrospective task (retrospection with training, without retrospection vs. Kellogg's retrospection) affects the cognitive effort. The results show that the bips distribution as well as a training on retrospection had effects on RT's but not on the activation of writing processes. Contrary to Kellogg's findings, RT's are not different for the three writing processes. Writers distribute their cognitive resources as a function of the tasks' constraints: writing, quick reaction and retrospection. It is concluded that Kellogg's method must be revaluated as an appropriate tool for measuring the cognitive effort involved in the various writing processes

Terminal differentiation of adult hippocampal progenitor cells is a step functionally dissociable from proliferation and is controlled by Tis21, Id3 and NeuroD2

Cell proliferation and differentiation are interdependent processes. Here, we have asked to what extent the two processes of neural progenitor cell amplification and differentiation are functionally separated. Thus, we analyzed whether it is possible to rescue a defect of terminal differentiation in progenitor cells of the dentate gyrus, where new neurons are generated throughout life, by inducing their proliferation and/or their differentiation with different stimuli appropriately timed. As a model we used the Tis21 knockout mouse, whose dentate gyrus neurons, as demonstrated by us and others, have an intrinsic defect of terminal differentiation. We first tested the effect of two proliferative as well as differentiative neurogenic stimuli, one pharmacological (fluoxetine), the other cognitive (the Morris water maze (MWM) training). Both effectively enhanced the number of new dentate gyrus neurons produced, and fluoxetine also reduced the S-phase length of Tis21 knockout dentate gyrus progenitor cells and increased the rate of differentiation of control cells, but neither factor enhanced the defective rate of differentiation. In contrast, the defect of terminal differentiation was fully rescued by in vivo infection of proliferating dentate gyrus progenitor cells with retroviruses either silencing Id3, an inhibitor of neural differentiation, or expressing NeuroD2, a proneural gene expressed in terminally differentiated dentate gyrus neurons. This is the first demonstration that NeuroD2 or the silencing of Id3 can activate the differentiation of dentate gyrus neurons, complementing a defect of differentiation. It also highlights how the rate of differentiation of dentate gyrus neurons is regulated genetically at several levels and that a neurogenic stimulus for amplification of neural stem/progenitor cells may not be sufficient in itself to modify this rat

Italy's health performance, 1990-2017: findings from the Global Burden of Disease Study 2017

BACKGROUND: Through a comprehensive analysis of Italy's estimates from the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2017, we aimed to understand the patterns of health loss and response of the health-care system, and offer evidence-based policy indications in light of the demographic transition and government health spending in the country. METHODS: Estimates for Italy were extracted from GBD 2017. Data on Italy are presented for 1990 and 2017, on prevalence, causes of death, years of life lost, years lived with disability, disability-adjusted life-years (DALYs), life expectancy at birth and at age 65 years, healthy life expectancy, and Healthcare Access and Quality (HAQ) Index. We compared the estimates for Italy with those of 15 other western European countries. FINDINGS: The quality of the universal health system and healthy behaviours contribute to favourable overall health, even in comparison with other western European countries. In 2017, life expectancy and HAQ Index score in Italy were among the highest globally, with life expectancy at birth reaching 85·3 years for females and 80·8 for males in 2017, ranking Italy eighth globally for females and sixth for males, and an HAQ Index score of 94·9 in 2016 compared with 81·54 in 1990, keeping Italy ranked as ninth globally. Between 1990 and 2017 age-standardised death rates for cardiovascular diseases decreased by 53·7% (95% uncertainty interval -56·1 to -51·4), for neoplasms decreased by 28·2% (-32·3 to -24·6), and for transport injuries decreased by 62·1% (-64·6 to -59·2). However, population ageing is causing an increase in the burden of specific diseases, such as Alzheimer's disease and other dementias (DALYs increased by 77·9% [68·4 to 87·2]) and pancreatic (DALYs increased by 39·7% [28·4 to 51·7]) and uterine cancers (DALYs increased by 164·7% [129·7 to 202·5]). Behavioural risk factors, which are potentially modifiable, still have a strong effect, particularly on cardiovascular diseases and neoplasms. For instance, in 2017, 44 400 (41 200 to 47 800) cancer deaths were attributed to smoking, 12 000 (9600 to 14 800) to alcohol use, and 9500 (5400 to 14 200) to high body-mass index, while 47 000 (31 100 to 65 700) deaths due to cardiovascular diseases could be attributed to high LDL cholesterol, 28 700 (19 700 to 38 500) to diets low in whole grains, and 15 900 (8500 to 24 900) to low physical activity. INTERPRETATION: Italy provides an interesting example of the results that can be achieved by a mix of relatively healthy lifestyles and a universal health system. Two main issues require attention, population ageing and gradual decrease of public health financing, which both pose several challenges to the future of Italy's health status. Our findings should be useful to Italy's policy makers and health system experts elsewhere. FUNDING: Bill & Melinda Gates Foundation

Proposição metodologica para modelagem de series de demanda de termoplasticos

Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro TecnologicoO mercado de termoplásticos, no Brasil, apesar de relativamente novo, vem num crescente, em termos de demanda, o que justifica os vultosos investimentos no setor. O presente trabalho tem por objetivo propor algumas técnicas de modelagem e previsão, para as séries de demanda de termoplásticos no mercado nacional, onde ressalta-se a Regressão Linear Multipla e a Função de Transferência de Box & Jenkins. Tais instrumentos, a título de ilustração, são aplicados sobre um conjunto de séries históricas que refletem o comportamento estrutural do mercado, num estudo comparativo com os modelos hoje utilizados, todos derivados de uma Regressão Linear Simples entre demanda e PIB per capita. Finalmente, são apresentadas as conclusões obtidas em decorrência do desenvolvimento e aplicação da metodologia proposta

337 Determinants of back-pain in the European Countries. A cross-sectional analysis of data from the fifth European Working Conditions Survey

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