Some Discriminative Functions of an Incidental Stimulus Adventitiously Associated with Reinforcement

The present study was a systematic replication of a study by Morse and Skinner (1957). An attempt was also made to study some of the parameters involved in the sensory control of operant behavior. Morse and Skinner found that a stimulus present when a response is being reinforced may acquire discriminative control over the response even though its presence at reinforcement is adventitious

Nanopore-based complete genome sequence of a Sri Lankan cassava mosaic virus (Geminivirus) strain from Thailand

Sri Lankan cassava mosaic virus is an emerging pathogen in Southeast Asia. Here, we report the complete genome of a Thai isolate obtained using Nanopore technology. The isolate was collected in 2019 from the northeastern province of Surin, soon after disease eradication was reported in the country

DEVELOPMENT OF A WIRELESS SIGNAL ACQUISITION SYSTEM FROM SENSORS FOR COMFORT AND ENERGY QUALITY

AbstractThe acquisition of wireless signals from sensors represents a variety of advantages over cable communication systems. This work presents a ZigBee-based signal acquisition system that takes advantage of its features to make a flexible system that can be used in different fields without the necessary use of a PC since a touchscreen and a microcontroller is used. The system is implemented in a building to monitor all the physical variables that are referred for the comfort of people, such as luminosity, temperature, humidity, gas concentration, smoke, human presence, glass breakage among others. The measure of these variables also could contribute to define or activate some extra-functions of the system, for example, alarms in case of fire presence. The system stores information of all sensors of all the network created in a Micro SD and uses it to make plots, also it is possible to visualize real-time readings.Keywords: Touchscreen, wireless sensor network (WSN), ZigBee.DESARROLLO DE UN SISTEMA DE ADQUISICIÓN DE SEÑALES INALÁMBRICAS A PARTIR DE SENSORES PARA COMODIDAD Y CALIDAD ENERGÉTICAResumenLa adquisición de señales inalámbricas de sensores representa una variedad de ventajas sobre los sistemas de comunicación por cable. Este trabajo presenta un sistema de adquisición de señales basado en antenas ZigBee que aprovecha sus características para hacer un sistema flexible que puede ser utilizado en diferentes campos sin el uso necesario de una PC ya que se utiliza una pantalla táctil y un microcontrolador. El sistema es implementado en un edificio para monitorear todas las variables físicas que se refieren a la comodidad de las personas, tales como luminosidad, temperatura, humedad, concentración de gas, humo, presencia humana, rotura de vidrios, entre otros. La medición de estas variables también es utilizada para activar algunas funciones extras del sistema, por ejemplo, alarmas en caso de presencia de fuego. El sistema almacena información de todos los sensores de toda la red creada en una Micro SD y crea gráficos históricos de dichas variables, además, es posible visualizar lecturas en tiempo real.Palabras claves: Pantalla táctil, red de sensores inalámbrica, ZigBee

The role of education in executive functions, behavioral problems and functional performance in people with schizophrenia

Objective: this cross-sectional study examined the influence of education on executive functions, behavioral problems and functional performance in people with chronic schizophrenia. Method: our sample was composed of 116 subjects with a schizophrenia diagnosis (evolution time = 17.5 ± 9.5 years) from consecutive referrals to the Rehabilitation Unit of Benito Menni Hospital (Valladolid, Spain). All participants completed an extensive standardized protocol including a neuropsychological testing of executive functions (processing speed, working memory, inhibition, interference control, mental flexibility), the assessment of behavioral symptoms, and functional performance. Hierarchical regression models (HRMs) were carried out to determine whether education (in years) relates to executive functions after controlling for the effect of demographics, IQ, and clinical factors. Results: both IQ and years of education were associated with a later onset of the illness. Specifically, high education (in years) significantly correlated with fewer behavioral problems and better functional performance in daily life. Further, HRMs showed that education was associated with digit span and sematic verbal fluency tasks after controlling for the effect of age, sex, and IQ as covariates. Conclusions: higher education may ameliorate executive deficits in patients with chronic schizophrenia and, in turn, diminish the behavioral and functional problems of the illness

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Handbook of multicultural mental health : assessment and treatment of diverse populations/ Edit. : Israel Cuellar

xxix, 486 hal.; 23 cm

Handbook of multicultural mental health : assessment and treatment of diverse populations/ Edit. : Israel Cuellar

xxix, 486 hal.; 23 cm

Ethnic identity and acculturation in a young adult Mexican-origin population

The relations among ethnic identity, measured by the Multigroup Ethnic Identity Measure (MEIM) and acculturation, as measured by the Acculturation Rating Scale-II (ARSMA-11) were studied in 1,367 freshmen college students, 87% of whom were of Mexican origin. The results strongly support the concept that ethnic identity and acculturation are related but separate processes. Ethnic identity scores were found to be highest in first generation, less acculturated subjects, and traditional acculturative types. Higher levels of acculturation were associated with less feelings of affirmation and belonging, and less feelings of ethnic identity achievement. The Pearson correlation coefficient obtained for Ethnic Identity and Acculturation was r = -.32 (p \u3c .001). Ethnic Identity Achievement (r = -.25), Affirmation and Belonging (r = -.35), and Ethnic Behaviors (r = -.14), were all negatively correlated with linear acculturation. High Biculturals were found to obtain higher scores in ethnic identity than Low Biculturals, and High Biculturals were found to be oriented more toward others than those who were classified as Traditional or Assimilated. The findings suggest that one\u27s sense of ethnic group membership diminishes with behavioral acculturation among Mexican Americans

Condición socioeconómica de estudiantes de nivel superior en un instituto y cinco facultades de la Ciudad de México

El objetivo de esta investigación es identificar el nivel socioeconómico (NSE) de los estudiantes de nivel superior, en las instituciones: Tecnológico Nacional de México/Instituto Tecnológico de Milpa Alta (TecNM/ITMA) y en la Facultad de Odontología, Facultad de Ingeniería, Facultad de Economía, Facultad de Contaduría y Administración y Facultad de Ciencias de la Universidad Nacional Autónoma de México (UNAM). Para ello, se implementó un cuestionario aplicado a una muestra significativa de cada institución, analizando sus diferencias sociodemográficas. Como primer paso se planteó revisar la validez del instrumento. Para lo cual, después de adaptar el contenido, se realizó una regresión lineal para observar las variables significativas correlacionadas con el nivel socioeconómico. En la Ciudad de México existen grandes contrastes económicos y sociales, que se ven reflejadas en las diferencias de los ingresos de los individuos, en el acceso a recursos educativos y la posesión de activos, entre otros [1]. Según [2], las universidades públicas se diferencian en dos grupos, para lo cual utiliza un criterio de clasificación claramente financiero. En este trabajo se presentan los resultados y conclusiones en una investigación que se llevó a cabo con el propósito de analizar el nivel socioeconómico en los estudiantes universitarios y si existe una relación entre esta y alguna característica particular de ellos (sexo, edad, facultad, etc.). Con este fin, la muestra respondió a un cuestionario con preguntas acerca de comportamientos relacionados con su nivel socioeconómico