scholarly journals Is poor coordination of saccades in dyslexics a consequence of reading difficulties? A study case

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
Elham Ghassemi ◽  
Zoë Kapoula
Keyword(s):  
Motor Preparation ◽  
Time Analysis ◽  
Attentional Resources ◽  
Fixation Durations ◽  
Scanning Task ◽  
Text Reading ◽  
Study Case ◽  
Oculomotor Learning ◽  
Binocular Coordination

We hypothesize that the high quality of binocular coordination of saccades in reading is progressively learned during childhood, and this oculomotor learning is based on a synergy between saccades and vergence. In present work deficits in the binocular control of saccades in six dyslexic children (mean age was 11±2.48 years) are studied for two tasks (text reading and Xs-C scanning), and at two viewing distances (40 cm and 100 cm). Fixation durations resulting are longer in Xs-C scanning task than in text reading task. We postulate that while reading motor preparation processes are executed with less demand for attentional resources. Importantly all physiological parameters of the saccades were the same for the two conditions and in either distance. Namely disconjugacy of saccades and disconjugate post-saccadic drifts were high but similar for the two conditions. Time analysis applied on saccade amplitude disconjugacy, on disconjugate post-saccadic drift and on fixation duration showed no significant effect of repetition or time. we believe that the binocular coordination deficits in dyslexic children reflect some type of microdyspraxia due to reduced oculomotor learning, perhaps related to inefficiency of the magnocellular visual system and the cerebellar functions.

scholarly journals Binocular coordination during smooth pursuit in dyslexia: a multiple case study

2010 ◽  
Vol 3 (3) ◽  
Author(s):  
Qing Yang ◽  
Marine Vernet ◽  
Maria-Pia Bucci ◽  
Zoe Kapoula
Keyword(s):  
Smooth Pursuit ◽  
Older Children ◽  
Learning Mechanisms ◽  
Multiple Case ◽  
Catch Up ◽  
The Right ◽  
Oculomotor Learning ◽  
Binocular Coordination

Smooth pursuit (SP) was explored in dyslexics and non-dyslexics. Dyslexic children show similar gain of SP, and number and amplitude of catch-up saccades (CUS) as non-dyslexic children. The quality of binocular coordination is good for both groups; the only significant exception is for pursuit to the right for both smooth phase and CUS; dyslexics show higher disconjugacy. Decrement of binocular control during rightward pursuit only could reflect immaturity of oculomotor learning mechanisms needed to optimize binocular coordination for all directions. Yet, these observations need to be confirmed in a larger population including older children and compared with other populations, e.g. with right-to-left reading.

scholarly journals Registros de enfermagem e suas implicações para a qualidade do cuidado

2019 ◽  
Vol 9 (26) ◽  
pp. 3
Author(s):  
Beatriz Da Silva Sousa ◽  
Ana Clara Maciel Barroso
Keyword(s):  
Medical Records ◽  
Electronic Records ◽  
Structured Interviews ◽  
Health Records ◽  
Study Case ◽  
Artery Disease ◽  
Study Type ◽  
Nursing Professionals

Avaliar o registro dos enfermeiros nos prontuários do paciente eletrônico e convencional, com vista à melhoria da qualidade do cuidado. Estudo descritivo, tipo estudo de caso. Foram realizadas entrevistas semiestruturadas com 8 enfermeiros da enfermaria de coronariopatias e a análise dos registros nos dois tipos de prontuários do paciente. Nos 25 prontuários revistos, constatou-se o número de 51 registros, sendo 37 do prontuário eletrônico e 14 do prontuário convencional, média de 31 dias de internação. Atrelou-se a não realização ao número insuficiente de profissionais de enfermagem no setor em comparação à complexidade dos pacientes atendidos. Destaca-se como obstáculo o quantitativo de pessoal da equipe de enfermagem e sua carga de trabalho. Consequentemente, há necessidade de ajustes quantitativo e qualitativo no processo de trabalho relacionados a execução desta e das demais tarefas para que possam ser adequadamente conduzidas.Descritores: Cuidados de Enfermagem, Registros Eletrônicos de Saúde, Carga de trabalho. Nursing records and their implications for the quality of careAbstract: To evaluate nurses' records in the electronic and conventional patient charts, with a view to improving the quality of care. Descriptive study, case study type. Semi-structured interviews were carried out with 8 nurses from the coronary artery disease ward and the analysis of the records in the two types of patient records. In the 25 revised records, the number of 51 records was verified, being 37 of the electronic records and 14 of the conventional medical records, average of 31 days of hospitalization. There was a lack of achievement of the insufficient number of nursing professionals in the sector compared to the complexity of the patients attended. The number of nursing staff and their workload stands out as an obstacle. Consequently, there is a need for quantitative and qualitative adjustments in the work process related to the execution of this and other tasks so that they can be properly conducted.Descriptors: Nursing Care, Eletronic Health Records, Workload. Registros de enfermería y sus implicaciones para la calidad de la atenciónResumen: Evaluar el registro de los enfermeros en los prontuarios del paciente electrónico y convencional, con objetivo la mejora de la calidad del cuidado. Estudio descriptivo, tipo estudio de caso. Se realizaron entrevistas semiestructuradas con 8 enfermeros de la enfermería de coronariopatias y el análisis de los registros en los dos tipos de prontuarios del paciente. En los 25 prontuarios revisados, se constató el número de 51 registros, siendo 37 del prontuario electrónico y 14 del prontuario convencional, promedio de 31 días de internación. La no realización se debe al número insuficiente de profesionales de enfermería en el sector en comparación a la complejidad de los pacientes atendidos. Se destaca como obstáculo el cuantitativo de personal del equipo de enfermería y su carga de trabajo. En consecuencia, hay necesidad de ajustes cuantitativos y cualitativos en el proceso de trabajo relacionados con la ejecución de ésta y de las demás tareas para que puedan ser adecuadamente conducidas.Descriptores: Atención de Enfermería, Registros Electrónicos de Salud, Carga de Trabajo.

scholarly journals Technical note: the caRamel R package for Automatic Calibration by Evolutionary Multi Objective Algorithm

2019 ◽  
Author(s):  
Céline Monteil ◽  
Fabrice Zaoui ◽  
Nicolas Le Moine ◽  
Frédéric Hendrickx
Keyword(s):  
Stable Solution ◽  
R Package ◽  
Technical Note ◽  
Main Function ◽  
Nsga Ii ◽  
Multiple Criteria Optimization ◽  
Multi Objective ◽  
Study Case ◽  
Nondominated Sorting

Abstract. Environmental modelling is complex, and models often require the calibration of several parameters that are not directly evaluable from a physical quantity or a field measurement. The R package caRamel has been designed to easily implement a multi-objective optimizer in the R environment to calibrate these parameters. A multiobjective calibration allows to find a compromise between different goals by defining a set of optimal parameters. The algorithm is a hybrid of the Multiobjective Evolutionary Annealing Simplex method (MEAS) and the Nondominated Sorting Genetic Algorithm II (ε-NSGA-II algorithm). The optimizer was initially developed for the calibration of hydrological models but can be used for any environmental model. The main function of the package, caRamel(), requires to define a multi-objective calibration function as well as bounds on the variation of the underlying parameters to optimize. CaRamel is well adapted to complex modelling. As an example, caRamel converges quickly and has a stable solution after 5,000 model evaluations with robust results for a real study case of a hydrological problem with 8 parameters and 3 objectives of calibration. The comparison with another well-known optimizer (i.e. MCO, for Multiple Criteria Optimization) confirms the quality of the algorithm.

scholarly journals TRACKING DAN CHROMAKEY SEBAGAI ELEMEN TEKNIK DESAIN EFEK VISUAL Studi Kasus: Efek Visual Video Klip

2020 ◽  
Vol 5 (1) ◽  
pp. 85
Author(s):  
Ardiyan Ardiyan ◽  
Satria Mahardika ◽  
Melki Sadekh Mansuan ◽  
Veronica Wijayanti
Keyword(s):  
Video Clip ◽  
Visual Media ◽  
Visual Effect ◽  
Alpha Channel ◽  
Early Production ◽  
Study Case ◽  
Technical Factors ◽  
Green Screen ◽  
E Mail

<p><strong>Abstrak</strong></p><p>Tracking and Chromakey as Visual Effect Design Technique (Study Case: Video Clip Visual Effect. Visual effect in audio visual media and animation is commonly use, especially chromakey technique or usually described as green screen or blue screen, a certain color element to acknowledge the alpha channel. In compositing technique, the using of tracking and chromakey technique are both known as visual effect technique. But on online editing works, the result seldom not at its best. This problem is usually occurred from early production process until the final process in the process of video making. The quality of final result based on early raw footage used. The objective of this research is to know the technical factors to achieve better method appliance in order to enhance the quality of final result. The study case is video clip that has short duration, more variative and has natural compositing result. The literature studies of software and user approached is the method use to analyses the problem. The result of this research is the understanding of tracking and chromakey method in video clip making process to achieve the visual effect needed. </p><p> </p><p><strong> Abstrak</strong></p><p>Tracking dan Chromakey Sebagai Elemen Teknik Desain Efek Visual (Studi Kasus: Efek Visual Video Klip). Efek visual dalam media audio visual maupun animasi sudah sangat lazim digunakan, khususnya penggunaan teknik chromakey atau yang lebih umum disebut green screen atau blue screen, yaitu penggunaan elemen warna tertentu untuk menentukan alpha channel. Dalam lingkup teknik compositing, penggunaan teknik tracking dan chromakey ini dapat digolongkan sebagai teknik efek visual. Dalam pengerjaan online editing, hasil akhir terkadang terasa kurang maksimal apabila ditinjau dari hasil kedua teknik ini. Hal ini dapat diartikan adanya permasalahan yang selalu terkait dengan pengolahan produksi awal sampai akhir dalam pengerjaan sebuah video. Kualitas hasil akhir akan ditentukan dari raw footage awal yang akan digunakan. Penelitian ini bertujuan untuk mengetahui faktor teknis yang ada, sehingga lebih baik dalam penggunaan metode yang dilakukan serta akan meningkatkan kualitas hasil akhir. Sebagai studi kasus adalah video klip dengan mempertimbangkan durasi yang tidak lama, lebih variatif dan mengarah dalam pendekatan hasil compositing yang natural. Selain itu metode studi literatur tentang perangkat lunak juga dilakukan, sehingga pendekatan metode dan pola pikir pengguna perangkat lunak lebih memahami dalam melakukan kedua proses ini. Hasil dari penelitian ini adalah pemahaman terhadap metode tracking dan chromakey dalam pembuatan video klip untuk menghasilkan efek visual yang dibutuhkan. Kata kunci: efek visual, compositing, video klip, tracking, chromakey<br />*) Jurusan Desain Komunikasi Visual, Program Animasi School Of Design Universitas Bina Nusantara e-mail: [email protected]</p>

scholarly journals Object Frequency and Predictability Effects on Eye Fixation Durations in Real-World Scene Viewing

2010 ◽  
Vol 3 (3) ◽  
Author(s):  
Hsueh-Cheng Wang ◽  
Alex D. Hwang ◽  
Marc Pomplun
Keyword(s):  
Real World ◽  
Latent Semantic Analysis ◽  
Fixation Duration ◽  
Semantic Analysis ◽  
Scene Analysis ◽  
Eye Fixations ◽  
Fixation Durations ◽  
Scene Viewing ◽  
Direction Of Effects ◽  
Text Reading

During text reading, the durations of eye fixations decrease with greater frequency and predictability of the currently fixated word (Rayner, 1998; 2009). However, it has not been tested whether those results also apply to scene viewing. We computed object frequency and predictability from both linguistic and visual scene analysis (LabelMe, Russell et al., 2008), and Latent Semantic Analysis (Landauer et al., 1998) was applied to estimate predictability. In a scene-viewing experiment, we found that, for small objects, linguistics-based frequency, but not scene-based frequency, had effects on first fixation duration, gaze duration, and total time. Both linguistic and scene-based predictability affected total time. Similar to reading, fixation duration decreased with higher frequency and predictability. For large objects, we found the direction of effects to be the inverse of those found in reading studies. These results suggest that the recognition of small objects in scene viewing shares some characteristics with the recognition of words in reading.

scholarly journals Formation of a system of indicators of balanced economic development in the context of globalization: space-time analysis in order to ensure economic security

2021 ◽  
Vol 92 ◽  
pp. 07001
Author(s):  
Lubov Afanasyeva ◽  
Larisa Belousova ◽  
Tatyana Tkacheva
Keyword(s):  
Value Added ◽  
Temporal Analysis ◽  
Economic Security ◽  
Space Time ◽  
Modern World ◽  
Time Analysis ◽  
Balanced Development ◽  
Federal Districts ◽  
Spatio Temporal

Research background: The modern world economy of the 21st century, being innovatively oriented, global and based on the information space, is constantly being modified, focusing on the growth of the level and quality of life of the population by accelerating innovation processes. For the purposes of monitoring the innovation and investment activities of the regions in order to ensure the economic security of Russia, it is necessary to have a system of indicators that reflect the processes of innovative development of its territories as comprehensively as possible. Purpose of the article: Formation of a system of indicators for the balanced development of the region’s economy in the context of globalization: space-time analysis in order to ensure economic security. Methods: Spatio-temporal analysis of the identified indicators of balanced development of the regional economy in order to ensure economic security. Findings & Value added: The proposed system of indicators of economic security of the region and their threshold values can be used in assessing the development forecasts of the regions and the Federal Districts developed by the administration, draft budgets, expertise of the federal target programs, as well as in other elements of the regional economic security management.

Sign in / Sign up

Export Citation Format

Share Document