Electrical Brain Activity and The Examinee\u27s Level of Effort During Performance Validity Tasks

Many people who intend to obtain benefits from an assessment may resort to performing poorly on assessments. Previous literature has found that cognitive deficits and long-term symptomatic complaints are reported by individuals with mild Traumatic Brain Injuries. Limited studies have investigated how brain activity measured via Quantitative Electroencephalography (QEEG) relates to mental effort during cognitive tasks. The purpose of this study was to investigate electrical brain activity, as measured by Peak (PK) frequency, on frontal brain areas (i.e. locations F3-F4) in individuals giving poor mental effort. Measures of effort, in this study, include the Test of Memory Malingering, Rey 15-Item Test, and the Rey-Osterrieth Complex Figure. A significant difference was found for the Rey-15 task in F4-F3 Beta PK Frequency asymmetry, indicating that groups differed in the asymmetry scores at the frontal areas. The results suggest that PK was only able to be related to effort when participants completed relatively easy tasks, and this was represented by asymmetry on PK Frequency for Beta on the Frontal Lobe

Exploring Visual Attention Patterns of Adults With Reported Adhd, Without Adhd, and Those With Malingering Adhd Symptoms

Noncredible performance and the intentional faking of symptoms during psychological evaluations have been observed in those seeking to obtain personal benefits. Cognitive deficits, such as impairments in attention are common in mental health settings and many seek an evaluation to rule out an attention-deficit/hyperactivity disorder. Previous literature establishes a base rate for malingering to be between 22-47% in adult ADHD evaluations (Sullivan, 2007; Suhr et al., 2008; Marshall et al., 2010). However, those faking or exaggerating ADHD can go unnoticed on self-report measures. There are limited studies that have identified methods that can specifically discriminate true ADHD from malingered ADHD. Therefore, the purpose of this study was to investigate whether attention can be differentiated from effort in the ADHD population, non-ADHD population, and Malingering groups with the use of simple visual Spot the Difference tasks. Results from the study suggest that a pattern of incorrect responses may be displayed by the malingered group, while individuals with ADHD take longer to find an image than those without a reported history of ADHD, particularly on difficult tasks. Overall, results are promising for understanding visual attention reaction patterns in ADHD and one step closer to creating simple, fun tools designed to measure effort

Efecto del lactosuero fresco y enriquecido sobre la ganancia de peso y fermentación ruminal en becerras Jersey criadas artificialmente

In artificial calf rearing it is necessary to replace milk to reduce feed costs. Therefore, the objective of the work was to evaluate the use of fresh and enriched whey as a substitute for whole milk in the artificial rearing system of Jersey calves. Twenty-four calves weighing 31 ± 2.8 kg were used, divided into three treatments: T1) whole milk + concentrate + grass (Cynodon nlemfuensis), T2) enriched fresh whey + concentrate + grass and T3) fresh whey + concentrate + grass. Daily weight gain, concentrate consumption, ruminal fermentation parameters and in vitro degradation of the pasture were evaluated. A completely randomized design was used. Weight gain was similar for T1 and T2 (0.840 and 0.780 kg; P<0.05). While the consumption of concentrate was similar for all treatments. The maximum volume (Vm: T1: 174.36, T2: 196.30 and T3: 200.46 mL / g of MS; P>0.05) and lag phase (L: T1: 1.36; T2: 1.22 and T3: 0.68 h; P>0.05) of the pasture was similar between the evaluated treatments. At 30 days, the greatest degradation was found in T1. However, at 90 days no differences were found. It is concluded that the use of enriched fresh whey is viable to replace milk in artificial rearing of Jersey calves.En la crianza artificial de becerras es necesario reemplazar la leche para disminuir los costos de alimentación. Por ello, el objetivo del trabajo fue evaluar el uso de lactosuero fresco y enriquecido como sustituto de la leche entera en el sistema de crianza artificial de becerras Jersey. Se utilizaron 24 becerras de 31 ± 2,8 kg de peso, repartidas en tres tratamientos: T1) leche entera + concentrado + pasto (Cynodon nlemfuensis), T2) lactosuero fresco enriquecido + concentrado + pasto y T3) lactosuero fresco + concentrado + pasto. Se evaluó ganancia diaria de peso, consumo de concentrado, parámetros de fermentación ruminal y degradación in vitro del pasto. Se utilizó un diseño completamente al azar. La ganancia de peso fue similar para T1 y T2 (0,840 kg y 0,780 kg; p < 0,05), mientras que el consumo de concentrado fue similar para todos los tratamientos. El volumen máximo (VM: T1: 174,36 mL/g de MS, T2: 196,30 mL/g de MS y T3: 200,46 mL/g de MS; p > 0,05) y fase lag (L: T1: 1,36 h; T2: 1,22 h y T3: 0,68 h; p > 0,05) del pasto fue similar entre los tratamientos evaluados. A los 30 días, la mayor degradación se encontró en T1; sin embargo, a los 90 días no se encontraron diferencias. Se concluye que el uso del lactosuero fresco enriquecido es viable para reemplazar la leche en la crianza artificial de becerras Jersey

Los recursos tecnológicos virtuales para el desarrollo de aplicaciones inclusivas

La investigación pretende acrecentar, los recursos tecnológicos virtuales, para desarrollar aplicaciones inclusivas, que faciliten la autoformación del docente, a través de la enseñanza virtual, fructificando las bondades que ofrecen las diferentes plataformas e-learning (Flexibilidad, Escalabilidad, Estandarización e Interactividad) y que  a su vez ostentan actividades recreativas y productivas, (foros, E-mails, chat, mensajes instantáneos y videoconferencias), herramientas tecno-pedagógicas para el trabajo colaborativo (AREA, M. y ADELL, J. (2009), optimizando la comunicación síncrona y asíncrona, mediante la implementación de modelos tecno-pedagógicos, TPAK (Almenara y col (2017)), ADDIE Morales-González (2014), prevaleciendo los espacios inclusivos del entorno educativo Calvo (2012).  Asistiendo las necesidades del aprendizaje de los niños, jóvenes y adultos en especial aquellos que son vulnerables a la marginalidad y la exclusión social.  Para el levantamiento de la información se cuestionó al personal académico y estudiantes, de la carrera de Informática, Facultad de Filosofía de la Universidad de Guayaquil se revisó, tesis de maestría, doctorado y artículos científicos, de los precursores, del modelo constructivista, cognitivista, significativo, cooperativo y crítico, defendidos por Lev Vygotski (1931), Jean Piaget (1978) y Ausubel, (1983). Metodologías aplicadas que robustecerán la calidad académica universitaria, instituyendo bases sólidas, fundamentadas en la autoconstrucción de nuevos conocimientos virtuales tecno-pedagógicas, Unesco Agenda (2030)

Factores determinantes del uso de sorgo para alimentación de ganado bovino en el noroeste de México

The objective of the study was to analyze the factors that determine the use of free pollination varieties of sorghum in the north of the state of Sinaloa, in order to characterize the type of producers that use this type of seeds. A discrete choice model was utilized to identify the factors that influence the adoption of sorghum by 199 farmers. Later, adopters (n= 11) and non-adopters (n= 188) of the technology were characterized based on non-parametric tests. The results show that 5.5 % of the producers have adopted sorghum varieties. The number of years with technical assistance and milk production were significant (P<0.05) for the adoption. Also, the characterization of the farmers showed that those who have more resources—infrastructure, machinery, livestock, land, wages and technical assistance, —were the ones who adopted the varieties of sorghum. It is concluded that the adoption of seeds is low and requires public goods, such as agricultural outreach programs, for the dissemination of its benefits to allow greater appropriation by farmers in the region of study.El objetivo del estudio fue analizar los factores que determinan el uso de variedades de polinización libre de sorgo en el norte del estado de Sinaloa, con la finalidad de caracterizar el tipo de productores que utilizan este tipo de semillas. Se utilizó un modelo de elección discreta para identificar los factores que inciden en la adopción de sorgo de 199 ganaderos. Posteriormente, a través de pruebas no paramétricas se caracterizaron los adoptadores (n= 11) y no adoptadores (n= 188) de la tecnología. Los resultados muestran que 5.5 % de los productores han adoptado variedades de sorgo. El número de años con asistencia técnica y la producción de leche resultaron significativas (P<0.05) para la adopción. En tanto, la caracterización de los ganaderos mostró que aquellos que cuentan con mayor cantidad de recursos: infraestructura, maquinaria, ganado, tierra, jornales y asistencia técnica, son los que adoptaron las variedades de sorgo. Se concluye que la adopción de semillas es baja y necesita de bienes públicos, como la extensión agrícola, para la difusión de sus beneficios que permita una mayor apropiación de los ganaderos en la región de estudio.

Sintomatología asociada al estrés y condiciones laborales de operarios de taxi de un sitio de la Ciudad de México

Introduction: Unhealthy lifestyles are related to habits and behaviors that can contribute to the deterioration and function of organ systems, leading to premature aging and degenerative chronic diseases. These conditions are aggravated due to the social inequality in certain occupations. Such is the case of taxi drivers, who experience environmental, physical, chemical, and biochemical risks, as well as high work demands such as long work days, low pay and little union support. By studying the health/disease process of these workers we can identify occupational burnout and mental integrity determined by the amount and intensity of the work, and propose preventive measures. Methods: A cross-sectional, observational and descriptive study was designed. We obtained data via a survey, anthropometric measurements, and laboratory testing. We examined associations and tested them for statistical significance. Results: Of the overall respondents, 32.5% reported driving more than 9 hours a day without breaks; 21.8% mentioned strict supervision and 48.7% reported being required to meet daily fee quotas. More than half the sample was continuously exposed to adverse conditions in the cab and the workplace. We found associations between these working conditions and the prevalence of chronic degenerative diseases, including diabetes, hypertriglyceridemia and hypercholesterolemia, higher than national average prevalence figures. Conclusion: occupational, physical and psychological working conditions among taxi drivers are very poor, and multidisciplinary strategies are needed to diminish them.Introducción: Los estilos de vida no saludables se relacionan con hábitos y conductas que deterioran los órganos y sus funciones generando envejecimiento prematuro y enfermedades crónicodegenerativas, estas condiciones se ven agravadas por las desigualdades sociales en ciertos grupos laborales, tal es el caso de los conductores de taxis, los cuales presentan riesgos ambientales, físicos, químicos, bioquímicos, así como exigencias laborales como son extensión de jornada, bajos salarios, las formas de organización y la falta de apoyo sindical. Estudiar el proceso salud/enfermedad de estos trabajadores, permite identificar el desgaste laboral y la integridad mental determinada por la cantidad e intensidad de trabajo y proponer medidas de prevención. Método: Se diseñó un estudio transversal, observacional y descriptivo, se aplicó una encuesta, valoración antropométrica, análisis bioquímicos, cuyos resultados tuvieron un procesamiento para identificar asociaciones y significancia estadística. Resultados: el 32.5% de la muestra conduce más de 9 horas. al día sin descansos, el 21.8% presentó supervisión estricta y 48.7% son obligados a cubrir cuotas diarias. Más de la mitad de la muestra se encuentra con exposición constante a condiciones adversas tanto en la unidad como en el lugar de trabajo. Se encontró asociación de estas condiciones con la prevalencia de enfermedades crónico degenerativas como diabetes mellitus, hipertrigliceridemia e hipercolesterolemia, más altas con las reportadas a nivel nacional. Conclusiones: las condiciones de los conductores de taxis tanto laborales como de salud mental y física se encuentran deterioradas de manera extrema por lo cual se necesitan estrategias multidisciplinarias para su disminución

FACTORES CRITICOS EN LA ADMINISTRACIÓN DE TRAPICHES DE LA REGION DE HUATUSCO, VERACRUZ

In Mexico, “Piloncillo” (unrefined brown sugar) production participates with 2.3% of the national production of sweeteners from sugar cane, with an average of 115 thousand tons. Among the major Piloncillo producing regions in the state of Veracruz the town of Huatusco has a 1,050 (ha) sugarcane crop area and a production of 73,500 ton (OIEDRUS, 2012). This is carried out in small peasant farms by traditional processes in which prevails a high intensity of family work and traditional manufacturing technology (Rodriguez, 2001) In this article the analysis of the critical factors of the success in the administration of the Piloncillo mills in the region of Huatusco is presented. The critical factors of success comprise a remarkable driving and regulating force of the power of adaptation, through which the strategic resources concentrates and allows to focus on the precise application of the resources for the creation of the competitive advantage. In the first part there is a diagnosis of Piloncillo production in the region. The second stage aims to define a framework for the issues raised in which the incidence of administration in the profitability of agribusinesses is analyzed. Finally, in the third stage there is the analysis of the results of the surveys and the conclusions and recommendations for the producers are presented