An overview of link-level measurement techniques for wide-area wireless networks

By building wireless link-level measurement tools we hope to improvement the design, deployment and management of wide-area wireless community networks. This paper identifies existing link-level measurement techniques and discusses the advantages and disadvantages of each in the context of measuring and monitoring such networks. Finally, we make a case for the need for more sophisticated techniques and tools which will assist both day-to-day network operations as well as wireless network research

Gambaran Komponen Konsep Diri Pada Penderita TB Paru Di Wilayah Kerja Puskesmas Padang Pasir Kota Padang

Penderita TB Paru masih mengalami stigma sosial dan ketidakadilan di masyarakat, diantaranya yaitu gangguan komponen konsep diri. Tujuan dari penelitian ini untuk mengetahui gambaran komponen konsep diri pada penderita TB paru di wilayah kerja Puskesmas Padang Pasir Kota Padang Tahun 2009. Desain penelitian ini yaitu deskriptif dengan sampel adalah 37 orang penderita TB paru. Data dikumpulkan dengan menggunakan kuisioner dengan skala Guttman. Hasil penelitian menunjukkan sebesar 56,8% memiliki gambaran diri negatif, 54,1% memiliki ideal diri negatif, 51,4% memiliki harga diri tinggi, 54,1% memiliki penampilan peran positif, dan 62,2% memiliki identitas diri positif. Disarankan bagi perawat yang bertanggungjawab dalam masalah TB paru, agar dalam memberikan bimbingan dan konseling bagi penderita TB paru agar dapat meningkatkan koping diri terhadap perubahan komponen konsep diri dan memperhatikan aspek perubahan komponen konsep diri yang terjadi pada penderita TB paru. Kata Kunci: TB paru, komponen konsep diri Tuberculosis patients are still through social stigma unfair behavior in the community, as well such a problem with self-concept component. This research’s aim was to know description of self-concept component to tuberculosis patients in Puskesmas Padang Pasir Kota Padang, 2009. Design of this research was descriptive with sample was 37 tuberculosis patients. Data were collected by using questionnaire with Guttman scale. The result of research showed that as much as 56,8% of respondents had negative body image, 54,1% of respondents had negative self- ideal, 51,4% of respondents showed high self-esteem, 54,1% of respondents had positive role performance, and 62,2% of respondents had positive self identity. It’s suggest for nurse who responsible in tuberculosis problems in order to give a introduction and counseling for tuberculosis patients to increase self coping against the change of self-concept and observe that change which created to tuberculosis patients. Keyword: Tuberculosis, self-concept component

Hidden Terminal Detection in Wide-Area 802.11 Wireless Networks

The hidden terminal problem is an important issue in wireless networks based on the CSMA medium access control scheme. Hidden terminals pose a complex challenge to network operators trying to identify the underlying cause of performance issues. This thesis describes new methods for the detection and measurement of the hidden terminal problem in wireless networks based on commodity hardware and software platforms. These new methods allow network operators to identify areas of a network where hidden terminals are likely to exist; detect instances of the hidden terminal problem occurring; and estimate the total impact hidden terminals are having on the performance of the network. A new framework for measurement of wireless networks is described which provides a new approach to wireless measurement on Linux based wireless routers. The new framework is used to implement the methods and they are deployed across an operational commercial wireless network and are shown to be useful

Desarrollo de una aplicación IoT para la gestión de un hogar inteligente mediante el protocolo MQTT y Sistemas en chip (SoC) ESP32

[ES] El objetivo del trabajo es realizar una aplicación IoT para dispositivos móviles que permita configurar un hogar inteligente. Los datos serán transmitidos mediante el protocolo MQTT (MQ Telemetry Transport) y se utilizarán módulos de desarrollo basados en el Soc ESP32[EN] The project aims to design an IoT application for the management of a smart home. The data will be transmitted through the MQTT (MQ Telemetry Transport) protocol and development modules based on the ESP32 Soc will be used.Moreno Hernández, R. (2020). Desarrollo de una aplicación IoT para la gestión de un hogar inteligente mediante el protocolo MQTT y Sistemas en chip (SoC) ESP32. http://hdl.handle.net/10251/152402TFG

Sarcoidosis: the disease and its ocular manifestations

Sarcoidosis is a systemic disease that has ocular manifestations. For many patients there is a long course of treatment both topical and systemic. This article describes sarcoidosis both systemic and ocular and some of the treatment modalities used

INMO: UN GEOPORTAL INMOBILIARIO APLICADO A SISTEMAS DE INFORMACIÓN DE BÚSQUEDA DE PROPIEDADES

La Georreferenciación es una técnica de gran utilidad para usuarios de portales inmobiliarios, que facilita el proceso de encontrar bienes inmuebles de acuerdo a criterios o necesidades de búsqueda. El principal objetivo de esta investigación, es detallar un portal inmobiliario de tipo marketplace, donde los usuarios puedan realizar consultas de propiedades a través de mapas, utilizando la API de Google Maps y la API de Google Street View. La arquitectura es aplicada e implementada en el Portal Vive Cartagena, un proyecto financiado por Colciencias en la convocatoria para conformar un banco de programas estratégicos y proyectos de investigación, desarrollo tecnológico e Innovación. Palabras claves: Mercado inmobiliario, software como servicio, CRM, geolocalización

Energy Interpretation of Solar Radiation Affects for Artemisa Province

Solar energy is one of the renewable sources with the best prospects for the future, which can have used directly in two fundamental ways: thermal energy and photovoltaic solar energy. Photovoltaic systems are a viable alternative to diversify the energy base worldwide, being able to inject electrical energy into the grid. The work shows the study of the energy interpretation of solar radiation that affects the province of Artemisa, for its possible use in the generation of electricity, based on the introduction of photovoltaic systems connected to the electricity grid. A theoretical analysis is made about the solar potential and the influence of the climatic variables in the use of it, the territory of the Artemisa province is characterized, where the solar radiation for the generation of electricity is valued, the energy impact is evaluated. Derives from the use of solar radiation that affects the territory to generate electrical energy

Methodology for the technological implementation of virtual education systems based on free software

En esta tesis se plantea una metodología para la implementación tecnológica de sistemas de educación virtual basada en software libre, para lo cual inicialmente se identificaron las variables que inciden en este proceso, mediante la aplicación de entrevistas a expertos que han llevado a cabo procesos de implementación de software libre para sistemas de educación virtual. Además, se identificaron y compararon metodologías para procesos de implementación de sistemas e – learning, con la intención de identificar sus similitudes y diferencias. De igual forma, se llevó a cabo la evaluación de la metodología tomando como escenario el proyecto Conexiones Cartagena de la Fundación Universitaria Tecnológico Comfenalco – Cartagena, en el cual se implementó un sistema de educación virtual para capacitación de los docentes en la construcción de material educativo computarizado y el uso de nuevas tecnologías. Se debe tener en cuenta que la metodología que se propone está concebida para guiar específicamenteUniversitat Oberta de Catalunya UOCMaestríaThis thesis endeavors the proposal of a methodology for the technological implementation of virtual education systems based on free software. At the beginning the variables that affect this process were identified through interviews given to experts who have implemented educational virtual systems based on free software. In addition, methodologies for implementing processes and e-learning systems were identified and compared in an attempt to identify their similarities and differences. Likewise, in the project conexiones Cartagena an assessment of the methodology was done at the Fundación Universitaria Tecnologico Comfenalco – Cartagena. In this project a system of virtual education for teacher training in construction of computerized educational materials and use of new technologies was carried out. It must be noted that the methodology proposed is designed specifically to guide the processes of technological implementation of virtual educational systems

Effects of Obesity and Gastric Bypass Surgery on Nutrient Sensors, Endocrine Cells, and Mucosal Innervation of the Mouse Colon

Background: Nutrient-sensing receptors located on enteroendocrine (EEC) cells modulate appetite via detection of luminal contents. Colonic ‘tasting’ of luminal contents may influence changes to appetite observed in obesity and after weight loss induced by bariatric surgery. We assessed the effects of obesity and gastric bypass-induced weight loss on expression of nutrient-sensing G-protein coupled receptors (GPCRs), EEC and enterochromaffin (EC) cells and mucosal innervation. Methods: qPCR and immunohistochemistry were used to study colonic tissue from (a) chow-fed/lean, (b) high-fat fed/obese, (c) Roux-en-Y gastric bypass surgery (RYGB), and (d) calorie restriction-induced weight loss mice. Results: Expression of GPR41, GPR43, GPR40, GPR120, GPR84, GPR119, GPR93 and T1R3 was increased in obese mice. Obesity-induced overexpression of GPR41, 40, 84, and 119 further increased after RYGB whereas GPR120 and T1R3 decreased. RYGB increased TGR5 expression. L-cells, but not EC cells, were increased after RYGB. No differences in mucosal innervation by protein gene product (PGP) 9.5 and GLP-1R-positive nerve fibers were observed. Stimulation of colonic mucosa with GPR41, GPR40, GPR85, GPR119, and TGR5 agonists increased cell activation marker expression. Conclusions: Several nutrient-sensing receptors induced activation of colonic EEC. Profound adaptive changes to the expression of these receptors occur in response to diet and weight loss induced by RYGB or calorie restriction

A surveillance sector review applied to infectious diseases at a country level

<p>Abstract</p> <p>Background</p> <p>The new International Health Regulations (IHR) require World Health Organization (WHO) member states to assess their core capacity for surveillance. Such reviews also have the potential to identify important surveillance gaps, improve the organisation of disparate surveillance systems and to focus attention on <it>upstream </it>hazards, determinants and interventions.</p> <p>Methods</p> <p>We developed a <it>surveillance sector review </it>method for evaluating all of the surveillance systems and related activities across a sector, in this case those concerned with infectious diseases in New Zealand. The first stage was a systematic description of these surveillance systems using a newly developed framework and classification system. Key informant interviews were conducted to validate the available information on the systems identified.</p> <p>Results</p> <p>We identified 91 surveillance systems and related activities in the 12 coherent categories of infectious diseases examined. The majority (n = 40 or 44%) of these were disease surveillance systems. They covered all categories, particularly for more severe outcomes including those resulting in death or hospitalisations. Except for some notifiable diseases and influenza, surveillance of less severe, but important infectious diseases occurring in the community was largely absent. There were 31 systems (34%) for surveillance of <it>upstream </it>infectious disease hazards, including risk and protective factors. This area tended to have many potential gaps and lack integration, partly because such systems were operated by a range of different agencies, often outside the health sector. There were fewer surveillance systems for determinants, including population size and characteristics (n = 9), and interventions (n = 11).</p> <p>Conclusions</p> <p>It was possible to create and populate a workable framework for describing all the infectious diseases surveillance systems and related activities in a single developed country and to identify potential surveillance sector gaps. This is the first stage in a review process that will lead to identification of priorities for surveillance sector development.</p