4,776 research outputs found

    On Scale Invariance and Anomalies in Quantum Mechanics

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    We re-consider the quantum mechanics of scale invariant potentials in two dimensions. The breaking of scale invariance by quantum effects is analyzed by the explicit evaluation of the phase shift and the self-adjoint extension method. We argue that the breaking of scale invariance reported in the literature for the δ\delta(r) potential, is an example of explicit and not an anomaly or quantum mechanical symmetry breaking.Comment: 15 pp in latex, no figure

    Assessing the Level of Effectiveness of Marketing Activities of HEIs in the National Capital Region

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    Higher Education Institutions in the Philippines, just as any business institutions, conduct marketing activities to ensure the thriving admission and retention of students. This paper ascertained the effectiveness of the marketing activities used by selected HEIs in the National Capital Region through the “Four P’s of Marketing”. Results of the study can be used as references by HEIs in updating their marketing activities. Keywords: Marketing Activities, Four Ps of Marketing, Higher Education Institutio

    The Promotion of Safety and Quality in Fall Prevention

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    Falls in a hospital setting are considered one of the most frequent, preventable adverse events that need to be addressed through the creation of safer environments. Nurses play a key element in the prevention and management of injuries related to falls. The focus question for this quality improvement initiative (QII) was whether an evidence-based QII program could reduce falls in the inpatient population. The objective of the project was to improve the practices related to fall prevention to reduce the number of inpatients falls. The change model of Kotter and the Preventing Falls in Hospitals: A Toolkit for Improving Quality of Care were used to implement the QII. The prevalence of falls from 1 month before the start of the project was compared to 1 month after the implementation of the falls program. The nurses were taught about the evidence-based interventions, the intentional hourly rounds, and the patients’ educations as well as administered the Fall Knowledge Test (Tool 2E) pre- and postimplementation. The interventions were implemented and the findings of the prevalence 3 months later show a significant decrease in the number of falls with 0 cases reported in November and December. Compared to the previous analysis, 53% (n = 8) of nurses recognized that meeting patients’ toileting needs decreases the risk for falls versus the pre-implementation result of 0% recognizing this action. The findings reinforce that a change in staff awareness was achieved, and the decrease in the incidence of falls reinforces the effectiveness of intentional hourly rounds and patient education. The results of this project may influence nursing administrators and other leaders to increase the application of fall prevention policies. The findings of this project promote a positive social change because the falls were reduced through the implementation of evidence-based interventions

    Новий погляд на проблему української бідності

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    Статья посвящена формированию нового взгляда на проблему украинской бедности через призму современных социально-экономических реалий в Украине и в мировом сообществе. В роботе рассматриваются различные определения бедности по монетарным и немонетарным признакам и их пригодность для оценки ситуации в Украине.The article is devoted to forming of the new look to the problem of Ukrainian poverty through the prism of modern socio-economic realities in Ukraine and in the world. Different criteria of poverty determination by monetary and nonmonetary signs and their fitness to the estimation of situation in Ukraine are examined

    Social Medicine in Latin America and its multiple viewpoints on qualitative research

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    Objectives: To explore the relationship between social medicine and qualitative research, and the positions adopted by the former with respect to the latter

    DEBI (Device for Bikes)

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    En la ciudad de Guadalajara, Jalisco en México, la seguridad de los ciclistas en áreas urbanas es un gran problema. El gobierno ha invertido en infraestructura como ciclovías y otros programas de movilidad para resolver este conflicto, pero el riesgo de seguridad continua. El dispositivo llamado DEBI (device for bikes) fue desarrollado como prueba de concepto que proporciona características de seguridad activa para ciclistas en áreas urbanas con la implementación de un dispositivo económico y portable. Las principales características de DEBI incluyen: Luces LED que son usadas para indicar cuando el ciclista está frenando y luces direccionales que son controladas de forma inalámbrica usando una aplicación de software ejecutada desde un smartphone. DEBI puede también detectar cuando otros vehículos se acercan en curso de colisión y activa una alarma acústica para alertar al ciclista. Todas estas características son alcanzadas gracias al acelerómetro con tecnología MEMs (Microelectromechanical Systems) y el sensor ultrasónico de proximidad que se comunica con el componente principal que es el microcontrolador ATmega328p de Atmel que está integrado en la tarjeta de desarrollo Bluno Beetle que además cuenta con un módulo de comunicación bluetooth embebido. Los resultados fueron satisfactorios considerando el alcance de este proyecto y todas las funcionalidades de seguridad fueron probadas. Sin embargo, es importante notar que algunas cuestiones relacionadas con lecturas falso-positivas fueron encontradas bajo circunstancias específicas, esto podría ser corregido en futuras versiones usando un sensor de proximidad más robusto, aunque esto requiere un análisis más detallado debido a que incrementaría de manera significativa el costo del dispositivo.In the city of Guadalajara, Jalisco in Mexico, the safety of cyclists in urban areas is a current problem. The government is investing in infrastructure like bicycle paths and other mobility programs to solve this issue, but there is still a lack of security measures that allow cyclists to ride safely, for example, the incorporation of technological devices with safety features. DEBI (Device for Bikes) is a product developed as a proof of concept to provide active safety features for cyclists in urban areas by implementing a low-cost and portable device. The main features of DEBI include: LED lights used to indicate when the cyclist is stopping and turn signals that are controlled via wireless using a software application running on a smartphone. DEBI can also detect when other vehicles are approaching in collision course and activate an acoustic alarm to alert the cyclist. All these features are achieved thanks to accelerometer with Microelectromechanical Systems technology (MEMs) and an ultrasonic proximity sensor that communicates with the core component, the ATmega328p microcontroller by Atmel™, integrated in the Bluno Beetle™ development board with a built-in Bluetooth communication module. The result was satisfactory considering the scope of this project and all safety features were validated. However, it is important to note that issues related to false-positive detection were found under specific circumstances, this could be corrected in future versions using a more robust proximity sensor, but it will require further analysis since this could significantly increase the cost of the device.Sistema BEAConsejo Nacional de Ciencia y Tecnologí

    Contribución a la caracterización de los suelos mediterraneos. Mapa de suelos E:1/50.000 del término municipal de Alcalá de Guadaira (Sevilla) España

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    135 página.-- Memoria presentada al XXIX Curso Internacional de Edafología y Biología VegetalEl presente estudlo de caraoterización de los suelos del térmmino de Alcalá de Gudaira. Responde a la actividad práctica del XXIX Curso Internacional de Edafología y Biología Vegetal. El área de estudio (28.699 ha) comprendió las hojas topográficas 984. 985. 1002 Y 1003 a escala 1:50.000 del Servicio Geográfico del Ejército. La geomorfología se caraoteriza por una diversidad de formas que configuran varios paisajes dentro del gran valle del Guadalquivir. Se identificaron las siguientes áreas fisiográficas : Areas de morfogénesis fluvio-coluvial. denudativa y estructural. La caracterización de los suelos se realizó en una secuencia de cinco etapas: gabinete, precampo. campo, laboratorio e integración de la información nuevamente en el gabinete.UNESCO, ICI. CSIC y Universidades de Sevilla y Granada.Peer reviewe

    THE MITE ORNITHONYSSUS SYLVARIUM (C. AND F.) (ARACHNIDA: ACARINA-MACRONYSSIDAE) ATTACKING FOWL IN PUERTO RICO

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    THE MITE ORNITHONYSSUS SYLVARIUM (C. AND F.) (ARACHNIDA: ACARINA-MACRONYSSIDAE) ATTACKING FOWL IN PUERTO RIC
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