O TDAH é um transtorno do neurodesenvolvimento e, de acordo com os novos critérios do DSM, a presença de vários sintomas antes de 12 anos de idade são exigidos. Além disso, o DSM-5 também incentiva o clínico a buscar informações colaterais para corroborar o diagnóstico, mesmo para adultos. O esforço para a obtenção de informações de terceiros seria justificada se uma evidência robusta de sua relevância pudesse ser demonstrada. Este é um estudo transversal com 449 pacientes adultos com TDAH e 143 controles, entrevistados entre 2002 e 2012. Os participantes foram consecutivamente avaliados para transtornos psiquiátricos considerando-se o DSM-IV, através de instrumentos diagnósticos padronizados. Informações colaterais foram obtidas usando-se as escalas de Barkley para sintomas de TDAH atuais e da infância. Nós comparamos os perfis demográficos e clínicos de pacientes adultos cujos informantes concordavam (n = 277) ou discordavam (n = 172) dos pacientes em relação à presença de sintomatologia na infância, e adultos sem TDAH (controles). Os pacientes com TDAH e controles não diferiram quanto à idade, anos de escolaridade, renda e sexo. Os grupos com TDAH diferiram dos controles com relação a repetência escolar, problemas com autoridade e disciplina, problemas com a lei e polícia, e tratamento farmacológico prévio. Comparados com os controles, os grupos com TDAH também apresentaram escores mais elevados de prejuízo e maiores taxas de prevalência de uso do tabaco, transtorno bipolar, transtorno de oposição e desafio, transtorno de conduta e dependência de substâncias não-alcoólicas. Poucas e pequenas diferenças entre os dois grupos com TDAH (suspensões escolares, problemas com autoridade e disciplina, e escores SNAP-IV) foram observadas. Nossos resultados não oferecem suporte para a ideia de que a informação colateral sobre a sintomatologia da infância é essencial para confirmar o diagnóstico de TDAH em adultos com uma síndrome clara auto relatada desse período, mas reafirmam a ideia de que o diagnóstico não deve ser descartado na ausência de um colateral que corrobore o relato do paciente. Contudo não podemos descartar a importância de informações de fontes externas ao próprio paciente em outras situações clínicas ou apresentações psicopatológicas. / ADHD is a neurodevelopmental disorder, and, according to the new DSM, the presence of various symptoms before 12 years of age is required. In addition, the DSM-5 also stimulates the clinician to look for collateral information to support the diagnostis, even for adults. The effort to obtain information from third parties would be justified if a robust evidence of its relevance could be demonstrated. This is a cross-sectional study of 449 adult patients with ADHD and 143 controls, that were interviewed between 2002 and 2012. Participants were consecutively evaluated for DSM-IV psychiatric disorders through standardized diagnostic instruments. Collateral information was obtained with Barkley’s scales for current and childhood ADHD symptoms. We compared the demographic and clinical profiles of adult patients whose informants agreed (n=277) or disagreed (n=172) from patients for the presence of symptoms in childhood, and adults without ADHD (controls). Patients with ADHD and controls did not differ in age, years of education, income and gender. Groups with ADHD differed from controls with respect to school failure, problems with authority and discipline, problems with the law and police, and prior psychopharmacological treatment. Compared with controls, the groups with ADHD also had higher scores of injury and higher prevalence rates of tobacco use, bipolar disorder, oppositional defiant disorder, conduct disorder and non- alcoholic substance dependence. Few and small differences between the two groups with ADHD (school suspensions, problems with authority and discipline, and SNAP-IV scores) were observed. These results do not support the idea that collateral information about symptoms of childhood is essential to confirm the diagnosis of ADHD in adults with a clear self-reported syndrome in childhood, but reaffirm the idea that the diagnosis should not be dismissed in the absence of an informant to corroborate the patient's report. However, we can not rule out the importance of information from external sources for patients with different clinical situations or psychopathological presentations.

Introdução: A avaliação do consumo alimentar de crianças e adolescentes representa um desafio na pesquisa epidemiológica. O Recordatório de 24 horas (R24h) é considerado um ótimo método para coletar dados dietéticos e é muito utilizado no acompanhamento alimentar da população. Porém requer entrevistadores altamente treinados, o que dificulta o uso em pesquisas de grandes amostras. Objetivo. Desenvolver um Recordatório de 24 horas estruturado e computadorizado (R24ec) para a avaliação do consumo alimentar de escolares e testar a usabilidade deste sistema. Métodos. Os alimentos escolhidos para o R24ec foram pré-definidos a partir de um banco de dados secundário. O R24ec inclui seis refeições prédefinidas, embutidas em questões que contextualizam as rotinas e locais do dia anterior. Contém ainda uma lista de alimentos dividida em grupos alimentares e subgrupos. Durante a entrevista, itens não listados podem ser adicionados em espaço previsto para este uso. A base de dados de composição de alimentos é composta pela tabela TACO. O R24ec ainda inclui um atlas fotográfico, contendo diferentes tipos de alimentos que serve como auxílio visual para que os entrevistados possam selecionar os tamanhos de porções. Realizou-se um teste com o R24ec em uma escola pública de Guarulhos com 73 escolares. A usabilidade foi testada por 17 profissionais da área da tecnologia da informação através de um questionário que avalia a usabilidade de sistemas utilizando a lógica Fuzzy baseado na ISO. Resultados. Foi desenvolvido um instrumento computadorizado contendo uma lista de aproximadamente 120 alimentos com média de três tamanhos de porções. Dos escolares pesquisados, cerca de 45 por cento fizeram alguma observação referente ao sistema durante o preenchimento do R24ec. 8,2 por cento tiveram problemas em relação à manipulação do sistema e 30 por cento tiveram problemas no preenchimento devido à incompreensão das perguntas, devido à idade ou maturidade. 67 por cento não cometeram erros ao preencher o R24ec. O teste de usabilidade apresentou para as métricas Controle de Erros, Eficiência e Satisfação amplitude Média (2), representando maior grau de confiança no resultado obtido. As métricas Facilidade de Aprender, Facilidade de Relembrar e Eficácia apresentaram amplitude Alta (3), o que representa um grau de confiança baixo. Conclusão. O Recordatório de 24 horas estruturado foi desenvolvido com sucesso e será hospedado no sitio da Universidade de São Paulo. O teste na escola com estudantes de 5ª a 8ª série apontou uma boa interação entre usuários e o sistema. O estudo de usabilidade com profissionais teve boas avaliações, porém deveria ser refeito com uma população maior para obterse maior confiança nos resultados / Introduction: The assessment of children and teenagers food intake brings a new challenge in epidemiological research. The 24-hour Dietary Recall (R24h) is considered an efficient method to collect diet data and is also very much used in population food monitoring. However, it requires highly qualified interviewers and this fact therefore generates great difficulty to the use of great sample research. Objectives: It aims at developing a structured and automated 24-hour Dietary Recall (R24ec) to evaluate school children food intake and test the usability of this system. Methods: The foods chosen to R24ec were pre-defined from a secondary database. The R24ec includes six pre-defined meals, incorporated in questions that contextualize the routines and places of the day before. It also contains a list of food divided in food groups and subgroups. During the interview, non-listed items can be included in proper blanks for this purpose. The database of food combination is composed of the TACO chart. The R24ec also includes a food photographic atlas, containing different types of food, used as visual help so that the interviewees can select the portion sizes. A test with school children was carried out with R24ec in a public school of Guarulhos. The usability was tested by 17 Information Technology professionals through a questionnaire that assesses the usability of systems using the Fuzzy logic, based on ISO. Results: An automated tool was developed, containing a list of approximately 120 types of food with an average of three portion sizes. Among the school children evaluated, around 45 per cent made some observation referring to the system during the R24ec filling process. 8,2 per cent had problems to manipulate the system and 30 per cent had problems to fill out the R24ec due to question misunderstandings, fact that can be related to the low level of maturity of the candidates. 67 per cent did not make any mistakes filling out the R24ec. The usability test presented to the metric Error Control, Efficiency and Satisfaction an average amplitude (2), representing a higher level of reliability in the obtained results. The metrics Facility to Learn, Facility to Remember and Efficiency presented high amplitude (3), which represents a low level of reliability. Conclusion: The structured 24-hour Dietary Recall was successfully developed and it will be posted in the Universidade de São Paulo website. The test with students from the Elementary School revealed good interaction between users and system. The usability study with professionals obtained good reviews, but it should be reapplied to a bigger audience in order to obtain a higher level of reliability towards the results

Ringtones are a common distracting sound in modern workspaces. In an earlierexperiment, ringtones increasing in volume (looming) produced greater attentional capture effectin the context of serial short-term memory, than ringtones with sudden onsets that decreased involume (receding). To determine whether this effect occurred merely because the loudest part ofthe looming ringtone coincided with the most sensitive part of the serial short-term memory task,this study repeated the sound conditions of the first experiment, but altered their timing. In thisstudy, the onset of the ringtones were brought forward in time such that the loudest part of thelooming ringtone now coincided with the part of the serial short-term memory task wherein theonset of the looming ringtone occurred in the first experiment. The looming ringtone againproduced more disruption than the receding ringtone, which failed to disrupt performance relativeto the quiet control condition. The presence of a masking sound eliminated the looming ringtoneeffect, as in the previous study. The results here support previous work demonstrating that thelooming sounds give rise to attentional capture and that this reflects an evolutionary adaptation tounconsciously react to approaching sounds/objects.

A percepção gestual de três licenciandos em situações de uso de representações estruturais químicas (REQ) foi caracterizada em uma disciplina do curso de licenciatura de Metodologia de Ensino de uma universidade pública. Esta percepção foi construída a partir da análise em entrevistas de Lembrança Estimulada por Vídeo (LEV), de uma enquete e da análise de situações de sala de aula de episódios de ensino. A LEV é uma técnica de origem cognitiva que foi adaptada para o estudo em uma abordagem sociocultural. A comparação de dados nesta pesquisa empregou a multimodalidade como modelo teórico e metodológico para caracterizar as interações multimodais em sala de aula. Na categorização de episódios de ensino, adaptamos algumas categorias de Silva (2008) como as operações epistêmicas, a proxêmica e os suportes. Na análise gestual, utilizamos a categorização de Kendon (2004). A percepção gestual foi construída com categorias inspiradas no funcionalismo de Lemke (2009). Contrastamos a análise de aula com a entrevista e a enquete para validar as respostas da entrevista. Os resultados da comparação entre a percepção dos licenciandos contribuíram para diferenciar como cada sujeito identifica sua performance gestual. / The gestural perception of three pre-service teachers has been characterized when using of chemical structural representations (CSR) from public university in a course of Chemistry Teaching. This perception has been constructed with analysis of Stimulated Recall Interviews (SRI), polls and classroom analysis of teaching episodes. SRI is a technique based on cognitive approach which has adapted to sociocultural perspective. We compared data using multimodality as a theoretical methodological model to characterize multimodal interactions at classroom. In categorization of teaching episodes, we adapted some categories from Silva (2008) like epistemic operations, proxemic and media. In gestural analysis, we used Kendon (2004) categories. The gestural perception has been constructed motivate by functionalist of Lemke (2009). We contrast classroom analysis with interviews and polls to increase the reliability of answers in interviews. Results of comparative between pre-service teacher perceptions is some differences how each subject index their gestural performance.

Business leaders lack transformational leadership strategies to promote the use of digital communication in the electricity supply industry. The purpose of this multiple case study was to explore transformational leadership strategies to promote the use of digital communication to mitigate electricity-related shutdowns and other electricity-related product recalls. The conceptual framework for this study aligns with general systems theory. The participants recruited in the study were business leaders, key account electricity consumers, and electricity consumers located in Johannesburg, South Africa. The rationale for the target population was their success in implementing transformational leadership strategies to promote the use of digital communication to mitigate the risk of electricity-related shutdowns. Data collection included semistructured interviews, direct observations with 14 participants, archival records/materials, and documents. Saldana's sequence of coding and data analysis technique using thematic coding and content analysis were used to determine specific themes and patterns derived from the 3 data sources. Based on methodological triangulation, 4 emergent themes evolved: business sustainability, digital media, electricity-related product recall crisis, and leadership efficacy that would assist leaders in growing a sustainable business in the electricity supply industry. The results of this study may contribute to positive social change by providing leaders with transformational leadership strategies for embracing digital media to ensure the industry's sustainability. This in turn would encourage improved economic activity, broad-based black economic empowerment, investments in health, education, environmental issues, and business opportunities for small businesses.

本論文共分成五章。第一章「緒論」，旨在說明公平而競爭的選舉，對於民主國家的重要性，其對於一個開放社會而言，任何僵化的意識型態皆是極權統治的象徵，是不切實際的烏托邦，本章藉學者卡爾、巴柏之筆，首先點出一個多元化民主化的社會，才是我們所要追求的。 　　第二章「理論與實際」則企圖利用立法程序的過程面和民主化理論的動態面為經緯，鋪陳我國選舉政策之變遷情形，為力求明確清晰，政策之本體係以選罷法諸條文之規定為代表，立法程序之變遷係反應以國會結構之調整，而時空環境之變化則以民主化理論中的不斷舉行之選舉為最佳的個案。 　　第三章「我國選舉政策合法化過程分析」，則詳細說明歷次選罷法之修正情形，主要分成在行政機關的部分和立法機關的階段，環環相扣，但兩機關對於政策之主導權限則互有消長之情形，而黨政關係自解嚴與開放黨禁之後，其對於公共政策之影響，也產生了相當程度之變化。 　　第四章「我國選舉政策重要內容分析」，其內容在於說明我國選舉政策之諸多規範要項，為求分析之便，部分選罷法條文之說明係採用各國制度比較之方式，或特別註引其是某一次重要修正時之產物，或是因為曾經產生重大爭議事件，以突顯政策內容之特殊性。 　　第五章「結論」。依研究之發現，可以論證我國選舉活動舉行之頻繁和我國政治發展之過程有相當密切之關係，而選舉政策之變遷，亦與時推移的對我國之民主發展產生不同程度之影響。

本文主要探討「最低購買金額門檻」促銷，例如、「滿一千送一百」、「滿三千送三百」等對於消費者購物行為之影響。分為兩大研究主題：研究主題一旨在探討「最低購買金額門檻」促銷對購物決策與認知之影響，透過實地賣場購物實驗，瞭解該促銷能否提高購買金額、令消費者傾向去計算購買商品總價格，及帶來較高之知覺交易效用。 研究主題二則根據研究一中發現「最低購買金額門檻」促銷下消費者會傾向於心中計算總價格之結果，進一步探究該促銷是否會影響消費者對價格的認知，包括如價格記憶的正確性、及內部參考價格的影響，透過型錄購物及電腦網頁模擬購物之實驗來驗證。 根據上述兩大研究主題，本文中進行了三個實驗，皆同樣以提供10%折扣幅度，但未設定購買金額門檻的「九折優惠」促銷來做為控制組：研究一實驗在實際書店賣場舉行，以賣場門口發放三種促銷 (滿一千送一百、滿五百送五十、及九折優惠)折扣券方式，購物結束後再透過購物發票、賣場銷售資料及問卷衡量，瞭解消費者當日購物行為結果。 研究二則透過實驗室實驗法，以商品型錄模擬購物來瞭解消費者在「滿千送百」與「九折優惠」促銷下回憶商品價格正確性之差異；研究三實驗以電腦網頁模擬百貨公司購物，先讓受測者在兩種促銷 (滿三千送三百、九折優惠)情境下購買商品，觀察他們購物接近促銷金額門檻時，購買最後一件商品的選擇結果，之後再請受測者賣回所購買商品，並藉由訂價過程瞭解其內部參考價格水準。 本研究的主要發現，對於消費者購物行為影響方面：(1)「最低購買金額門檻」促銷確實能夠提高消費者購買的金額，符合定錨調整理論 (Tversky and Kahneman, 1974)推論之結果；(2)兩種促銷下的知覺交易效用結果則無法證實，推測由於實驗中「滿千送百」贈送的現金是緊接著消費決策後發生，延遲得到小額利得的感受不夠明顯，使得銀線原則 (Thaler, 1985)無法被驗證。 對於商品價格認知影響方面：(1) 當購買金額超過促銷門檻時，「最低購買金額門檻」促銷下的內部參考價格高於「直接折扣」促銷者；(2)在該促銷下消費者在心中計算總價格的比例明顯高於「直接折扣」促銷；(3)在該促銷下消費者因為必須計算總價格，使得價格回憶的正確性提高；(4)透過內部參考價格間接推估「最低購買金額門檻」促銷在購買金額超過促銷門檻時，有較高之交易效用。 / The present research explores the effects of “the minimum purchase requirement promotions” on consumers’ purchasing behavior. Study 1 examined consumers’ purchasing decisions in a field experiment with three types of promotional coupons randomly handed to customers: Purchase over $1000 and get a $100 cash reward, purchase over $500 and get a $50 cash reward, or 10% off price discount. Consumers’ invoices from the bookstore’s database were recorded, and questionnaires were used to measure transaction value and how these promotions influenced consumers’ shopping spending, and tendency to calculate total expense. Study 1’s findings show that consumers tend to calculate total expense under “the minimum purchase requirement promotion”. Study 2 and Study3 explored how this promotional type influences on consumers’ price cognition, including price recall accuracy and internal reference price. In Study 2, laboratory experiment was used: (a) purchase over $1000 and get a $100 cash reward and (b) 10% off price discount through manipulated catalog shopping. Study 3 was a computer-manipulated shopping experiment, with participants purchasing product in the shopping stage of experiment and selling the products in a later auction to ascertain their internal reference price under two different promotional frames (purchase over $3000 and get a $300 cash reward, and a 10% off price discount). Major findings about consumers’ purchasing decisions were: (a) as the inference of anchoring and adjusting heuristic theory (Tversky and Kahneman, 1974), consumers increase their spending; (b) the “requirement promotion” improvement of consumers’ transaction value cannot be proved as the inference of silver linings principle (Thaler, 1985) because the time delay was not obvious in the experiment. The results of the influence on price cognition were: (a) “the minimum purchase requirement promotion” had a higher internal reference price than regular price discount with total expense over the promotional threshold; (b) this promotion will increase consumers’ tendency to calculate total expense; (c) consumers have higher price recall accuracy in this requirement promotion; and (d) the internal reference price was used to infer that this promotion might have a higher transaction value with total expense over the promotional threshold.

<p>In this age of ubiquitous advertisement, people are getting more and more burdened withadvertising clutter. Digital Signage (DS) has evolved to be a new medium that can cut throughthis clutter and reach a large number of consumers. Though Digital Signage was introduced asan in-store advertising medium, soon it started to replace traditional static billboards with thebenefit of technological advancement.</p><p>While advertising effectiveness is a much discussed subject, effectiveness of an advertisingmedia is still a less explored area. Our research explored the effectiveness of Digital Signageas an advertising media in terms of its placement inside of a store and outside of a store. Atthe beginning we developed a model to measure the effectiveness of Digital Signage on thebasis of an existing model, termed as Advertising Response Model (ARM). Based onprofound study and analysis of previous literature on advertising and media effectiveness,consumer psychology, outdoor advertising and intermediate measurement variables weconstructed the modified version of ARM that deemed to be the best fit with our purpose. Wefurther developed four hypotheses on the basis of the four major variables of our model.</p><p>The result of our study indicated that placement of Digital Signage inside and outside of thestore environment impacts the variables of Attention, Recall and Media Liking of theaudience differently. However, no significant difference in consumers’ Buying Interest issupported. Placing Digital Signage inside of the store as well outside of the store both hasdifferent degrees of impact on consumers in terms of Attention, Recall and Media Liking. Thecorrelations among the variables were also explored and thus we presented some strategicinsights about the placement of Digital Signage and practical implications for managers in thescope of our study.</p><p>Our research area has received comparatively less academic attention than other advertisingmedia. However, considering the growing importance of Digital Signage as a groundbreakingadvertising medium and scope of future research work, we believe Digital Signage will be asubject of interest for the academics, the advertisers as well as for the companies.</p>

<p>Keystroke logging records keyboard activity during writing. Time and position of all keystrokes are stored in a log file, which facilitates detailed analysis of all pauses, revisions and movements undertaken during writing. Keystroke logging further includes a replay function, which can be used as a tool for reflection and analysis of the writing process. During writing, writers continuously plan, transcribe, read, and revise in order to create a text that meets with their goals and intentions for the text. These activities both interact and trigger one another.</p><p>This thesis includes studies in which keystroke recordings are used as bases for visualisation of and reflection on the cognitive processes that underlie writing. The keystroke logging methodology is coupled with Geographical information systems (GIS) and stimulated recall in order to enhance the understanding of keystroke logged data as representations of interacting cognitive activities during writing. Particular attention is paid to writing revision and a taxonomy for analysis of on-line revision is proposed. In the taxonomy, revisions made at the point of inscription are introduced as ‘pre-contextual’ revisions, and highlighted as potential windows on cognitive processing during transcription. The function of pre-contextual revisions as revisions of form and concepts was ascertained in an empirical study, which also showed that 13-year-old writers revised more form and concepts at the point of inscription when they wrote in English as a foreign language (EFL) than in Swedish as a first language (L1).</p><p>In this thesis, a learning method, Peer-based intervention (PBI), is introduced and examined through case studies and statistical analysis. PBI is based on theories about cognitive capacity, noticing, individual-based learning and social interaction. In PBI, the keystroke-logging replay facility is used as a tool for reflection on and discussion of keystroke logged data, i.e. representations of cognitive processes active during writing. In the studies presented in this thesis, teen-aged and adult writers’ texts, written before and after PBI, were analysed according to text quality and revision. Descriptive and argumentative texts in both L1 and EFL were included in the studies. The results showed that PBI raised adult and teen-aged writers’ awareness of linguistic and extra-linguistic features, and that the effect varied across levels of learner ability, text type and language.</p>

Thesis (Ph.D. (Ethics))--North-West University, Potchefstroom Campus, 2006.