Comparison of stability statistics for yield in barley (Hordeum vulgare L.)

Analysis of multienvironment trials (METs) of crops for cultivar evaluation and recommendation is an important issue in plant breeding research. Evaluating both stability of performance and high yield is essential in MET analyses. The objectives of this study were to assess interrelationship among these measures and to identify high-yield and stable barley (Hordeum vulgare L.) cultivars in 11 environments during 2001 - 2003 in the central Black Sea region of Turkey. Significant differences were observed among barley cultivars for grain yield, thousand-grain weight, hectoliter weight, plant height and heading date. In this study, high values of TOP (proportion of environments in which a genotype ranked in the top third) was associated with high mean yield, but the other methods were not positively correlated with mean yield and instead characterized a static concept of stability. The results of principal component (PC) analysis and correlation analysis of parametric and nonparametric stability statistics and yield indicated that only TOP method would be useful for simultaneously selecting for high yield and stability. This method recommended Fahrettinbey and Sladoran as stable and Balkan 96 and Erginel as unstable genotypes. A biplot of the first two PCs also revealed that the stability statistic methods grouped as three distinct classes that corresponded to different dynamic (agronomic) and static (biological) concepts of stability

Child t-shirt size data set from 3D body scanner anthropometric measurements and a questionnaire

[EN] A dataset of a fit assessment study in children is presented. Anthropometric measurements of 113 children were obtained using a 3D body scanner. Children tested a t-shirt of different sizes and a different model for boys and girls, and their fit was assessed by an expert. This expert labeled the fit as 0 (correct), ¿1 (if the garment was small for that child), or 1 (if the garment was large for that child) in an ordered factor called Size-fit. Moreover, the fit was numerically assessed from 1 (very poor fit) to 10 (perfect fit) in a variable called Expert evaluation. This data set contains the differences between the reference mannequin of the evaluated size and the child¿s anthropometric measurements for 27 variables. Besides these variables, in the data set, we can also find the gender, the size evaluated, and the size recommended by the expert, including if an intermediate, but nonexistent size between two consecutive sizes would have been the right size. In total, there are 232 observations. The analysis of these data can be found in Pierola et al. (2016) [2].This work has been partially supported by Grants DPI2013-47279-C2-1-R and DPI2013-47279-C2-2-R.Pierola, A.; Epifanio, I.; Alemany Mut, MS. (2017). Child t-shirt size data set from 3D body scanner anthropometric measurements and a questionnaire. Data in Brief. 11:311-315. https://doi.org/10.1016/j.dib.2017.02.025S3113151

Asynchronous BCI control using high-frequency SSVEP

<p>Abstract</p> <p>Background</p> <p>Steady-State Visual Evoked Potential (SSVEP) is a visual cortical response evoked by repetitive stimuli with a light source flickering at frequencies above 4 Hz and could be classified into three ranges: low (up to 12 Hz), medium (12-30) and high frequency (> 30 Hz). SSVEP-based Brain-Computer Interfaces (BCI) are principally focused on the low and medium range of frequencies whereas there are only a few projects in the high-frequency range. However, they only evaluate the performance of different methods to extract SSVEP.</p> <p>Methods</p> <p>This research proposed a high-frequency SSVEP-based asynchronous BCI in order to control the navigation of a mobile object on the screen through a scenario and to reach its final destination. This could help impaired people to navigate a robotic wheelchair. There were three different scenarios with different difficulty levels (easy, medium and difficult). The signal processing method is based on Fourier transform and three EEG measurement channels.</p> <p>Results</p> <p>The research obtained accuracies ranging in classification from 65% to 100% with Information Transfer Rate varying from 9.4 to 45 bits/min.</p> <p>Conclusions</p> <p>Our proposed method allows all subjects participating in the study to control the mobile object and to reach a final target without prior training.</p

Ultra Wide-Band Localization and SLAM: A Comparative Study for Mobile Robot Navigation

In this work, a comparative study between an Ultra Wide-Band (UWB) localization system and a Simultaneous Localization and Mapping (SLAM) algorithm is presented. Due to its high bandwidth and short pulses length, UWB potentially allows great accuracy in range measurements based on Time of Arrival (TOA) estimation. SLAM algorithms recursively estimates the map of an environment and the pose (position and orientation) of a mobile robot within that environment. The comparative study presented here involves the performance analysis of implementing in parallel an UWB localization based system and a SLAM algorithm on a mobile robot navigating within an environment. Real time results as well as error analysis are also shown in this work

Linear algebra and optimization based controller design for trajectory tracking of typical chemical process

This paper presents a new controller design to tracking trajectory of a typical chemical process. The plant model is represented by numerical methods and, from this approach, the control actions for an optimal operation of the system are obtained. Its main advantage is that the condition for the tracking error tends to zero and the calculation of control actions, are obtained solving a system of linear equations. The proofs of convergence to zero of the tracking error are presented. Simulation results show the good performance of the proposed control system.Fil: Serrano, Mario Emanuel. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Scaglia, Gustavo Juan Eduardo. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aballay, P.. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; ArgentinaFil: Ortiz, O. A.. Universidad Nacional de San Juan. Facultad de Ingenieria. Instituto de Ingenieria Quimica; ArgentinaFil: Mut, Vicente Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Juan. Instituto de Automática; Argentin

Intención de abandono y abandono durante el primer curso de Formación Profesional de Grado Medio: un análisis tomando como referencia el concepto de implicación del estudiante ("student engagement")

This article analyzes dropout intention and the effective dropout rate amongst fi rst year students enrolled in Intermediate Vocational Education & Training (IVET) using seven factors related to student engagement (SE). The data analyzed come from a questionnaire based in SE concept applied to a sample of 1,030 students enrolled in the fi rst year of IVET. Regarding dropout intention, professional perspectives were the factor with the greatest predictive weight. Regarding the dropout during the fi rst course, the factors with the greatest weight were involvement in the school/educational tasks and relationship with teachers. Results suggest that professional perspectives are very important to engage IVET students with the program in which they are enrolled, but these must later be complemented with student involvement in the school/educational tasks and good relationships with the teaching staff. The importance of this article lies in the scarcity of empirical works focusing on dropout from IVET programs and its applicability in interventions aimed at reducing the dropout rate.Este artículo analiza la intención de abandono y el abandono durante el primer curso de Formación Profesional de Grado Medio (FPGM) en función de siete factores relacionados con el concepto de implicación del estudiante (IE) o student engagement (SE). Los datos analizados provienen de un cuestionario basado en el concepto de IE aplicado a una muestra de 1.030 estudiantes matriculados en el primer curso FPGM. Respecto a la intención de abandono, las perspectivas profesionales fueron el factor con mayor peso predictivo. Respecto al abandono durante el primer curso, los factores con mayor peso fueron las relaciones con el profesorado y la implicación en el trabajo escolar. Los resultados sugieren que las perspectivas profesionales son muy importantes para vincular al estudiante con la profesión estudiada, pero es necesario que éstas se complementen con implicación en las tareas escolares y buenas relaciones con el profesorado para reducir el riesgo de abandono. La importancia del artículo reside en la escasez de trabajos empíricos focalizados en el abandono que se produce en FPGM y en su utilidad para fundamentar intervenciones dirigidas a reducir el abandono

Study on controllable and uncontrollable factors affecting foot shape

Ballester Fernandez, A.; Pierola, A.; Solves Camallonga, C.; Parrilla Bernabé, E.; Uriel-Molto, J.; Zaimi-Tortajada, IIM.; Page Del Pozo, AF.... (2019). Study on controllable and uncontrollable factors affecting foot shape. Footwear Science. 11(Sup1):123-125. https://doi.org/10.1080/19424280.2019.1606113S12312511Sup1BALLESTER, A., PIEROLA, A., PARRILLA, E., IZQUIERDO, M., URIEL, J., NACHER, B., … ALEMANY, S. (2017). Fast, Portable and Low-Cost 3D Foot Digitizers: Validity and Reliability of Measurements. Proceedings of 3DBODY.TECH 2017 - 8th International Conference and Exhibition on 3D Body Scanning and Processing Technologies, Montreal QC, Canada, 11-12 Oct. 2017. doi:10.15221/17.218Houston, V. L., Luo, G., Mason, C. P., Mussman, M., Garbarini, M., & Beattie, A. C. (2006). Changes in Male Foot Shape and Size with Weightbearing. Journal of the American Podiatric Medical Association, 96(4), 330-343. doi:10.7547/0960330Moholkar, K., & Fenelon, G. (2001). Diurnal variations in volume of the foot and ankle. The Journal of Foot and Ankle Surgery, 40(5), 302-304. doi:10.1016/s1067-2516(01)80066-1XIONG, S., GOONETILLEKE, R. S., ZHAO, J., LI, W., & WITANA, C. P. (2009). Foot deformations under different load-bearing conditions and their relationships to stature and body weight. Anthropological Science, 117(2), 77-88. doi:10.1537/ase.07091

The relationship between physician and cancer patient when initiating adjuvant treatment and its association with sociodemographic and clinical variables

Purpose The aim of this study was to analyze differences in physician and patient satisfaction in shared decision-making (SDM); patients' emotional distress, and coping in subjects with resected, non-metastatic cancer. Methods 602 patients from 14 hospitals in Spain were surveyed. Information was collected regarding physician and patient satisfaction with SDM, participants' emotional distress and coping, as well as patient sociodemographic and clinical characteristics by means of specific, validated questionnaires. Results Overall, 11% of physicians and 19% of patients were dissatisfied with SDM; 22% of patients presented hopelessness or anxious preoccupation as coping strategies, and 56% presented emotional distress. By gender, female patients showed a higher prevalence of dissatisfaction with SDM (23 vs 14%), anxious preoccupation (26 vs 17%), and emotional distress (63 vs 44%) than males. Hopelessness was more prevalent in individuals with stage III disease than those with stages I-II (28 vs 18%). Conclusion Physicians must be mindful of the importance of emotional support and individual characteristics when communicating treatment options, benefits, and adverse effects of each alternative to oncological patients