Análisis sensado de temperatura para control de acceso con protocolo de bioseguridad a instituciones de educación superior

The article proposes the implementation of a prototype module for the control of access to higher education institutions, in this case the POLITECNICO COLOMBIANO JAIME ISAZA CADAVID headquarters Poblado through the temperature sensing biosafety protocol, the tool allows temperature capture and taking of personal data for each user who enters the institution automatically given the current situation due to Covid-19. For the implementation, the software and hardware of existing technologies that are used to capture the temperature in an automated way are characterized, from this, the most appropriate technology for the implementation is selected, using open source libraries, to modify the source code according to the punctual need. Similarly, a web application is developed to enter personal data and replace the physical forms with a digital database.El artículo plantea la implementación de un módulo prototipo para el control de acceso a instituciones de educación superior, en este caso el Politécnico Colombiano Jaime Isaza Cadavid sede Poblado a través del protocolo de bioseguridad sensado de temperatura, la herramienta permite captura de temperatura y toma de datos personales para cada usuario que ingresa a la institución de manera automática dada la situación que se presenta actualmente por el Covid-19. Para la implementación se caracteriza el software y hardware de tecnologías ya existentes que se utilizan para capturar la temperatura de manera automatizada, a partir de esto, se selecciona la tecnología más adecuada para la implementación, utilizando librerías open source, para modificar el código fuente según la necesidad puntual. De igual forma, se desarrolla una aplicación web para el ingreso de datos personales y reemplazar las planillas físicas por una base de datos de manera digital

Optical Spectra of SNR Candidates in NGC 300

We present moderate-resolution (<5A) long-slit optical spectra of 51 nebular objects in the nearby Sculptor Group galaxy NGC 300 obtained with the 2.3 meter Advanced Technology Telescope at Siding Spring Observatory, Australia. Adopting the criterion of [SII]/Ha>=0.4 to confirm supernova remnants (SNRs) from optical spectra, we find that of 28 objects previously proposed as SNRs from optical observations, 22 meet this criterion with six showing [SII]/Ha of less than 0.4. Of 27 objects suggested as SNRs from radio data, four are associated with the 28 previously proposed SNRs. Of these four, three (included in the 22 above) meet the criterion. In all, 22 of the 51 nebular objects meet the [SII]/Ha criterion as SNRs while the nature of the remaining 29 objects remains undetermined by these observations.Comment: Accepted for publication in Astrophysics & Space Scienc

The Prognostic Role of Preoperative PSMA PET/CT in cN0M0 pN+ Prostate Cancer: A Multicenter Study

CONTEXT: Despite negative preoperative conventional imaging, up to 10% of patients with prostate cancer (PCa) harbor lymph-node involvement (LNI) at radical prostatectomy (RP). The advent of more accurate imaging modalities such as PET/CT improved the detection of LNI. However, their clinical impact and prognostic value are still unclear. We aimed to investigate the prognostic value of preoperative PET/CT in patients node positive (pN+) at RP. EVIDENCE SYNTHESIS: We retrospectively identified cN0M0 patients at conventional imaging (CT and/or MRI, and bone scan) who had pN+ PCa at RP at 17 referral centers. Patients with cN+ at PSMA/Choline PET/CT but cN0M0 at conventional imaging were also included. Systemic progression/recurrence was the primary outcome; Cox proportional hazards models were used for multivariate analysis. EVIDENCE ACQUISITION: We included 1163 pN+ men out of whom 95 and 100 had preoperative PSMA and/or Choline PET/CT, respectively. ISUP grade ≥4 was detected in 66.6%. Overall, 42% of patients had postoperative PSA persistence (≥0.1 ng/mL). Postoperative management included initial observation (34%), ADT (22.7%) and adjuvant RT+/-ADT (42.8%). Median follow-up was 42 months. Patients with cN+ on PSMA PET/CT had an increased risk of systemic progression (52.9% vs. 13.6% cN0 PSMA PET/CT vs. 21.5% cN0 at conventional imaging; P .05). Observation as an initial management strategy instead of adjuvant treatments was related with an increased risk of metastases (HR 1.808; 95% CI: 1.069-3.058; P < .05). CONCLUSIONS: PSMA PET/CT cN+ patients with negative conventional imaging have an increased risk of systemic progression after RP compared to their counterparts with cN0M0 disease both at conventional and/or molecular imaging

The Prognostic Role of Preoperative PSMA PET/CT in cN0M0 pN+ Prostate Cancer:A Multicenter Study

Context: Despite negative preoperative conventional imaging, up to 10% of patients with prostate cancer (PCa) harbor lymph-node involvement (LNI) at radical prostatectomy (RP). The advent of more accurate imaging modalities such as PET/CT improved the detection of LNI. However, their clinical impact and prognostic value are still unclear. We aimed to investigate the prognostic value of preoperative PET/CT in patients node positive (pN+) at RP. Evidence Synthesis: We retrospectively identified cN0M0 patients at conventional imaging (CT and/or MRI, and bone scan) who had pN+ PCa at RP at 17 referral centers. Patients with cN+ at PSMA/Choline PET/CT but cN0M0 at conventional imaging were also included. Systemic progression/recurrence was the primary outcome; Cox proportional hazards models were used for multivariate analysis. Evidence Acquisition: We included 1163 pN+ men out of whom 95 and 100 had preoperative PSMA and/or Choline PET/CT, respectively. ISUP grade ≥4 was detected in 66.6%. Overall, 42% of patients had postoperative PSA persistence (≥0.1 ng/mL). Postoperative management included initial observation (34%), ADT (22.7%) and adjuvant RT+/-ADT (42.8%). Median follow-up was 42 months. Patients with cN+ on PSMA PET/CT had an increased risk of systemic progression (52.9% vs. 13.6% cN0 PSMA PET/CT vs. 21.5% cN0 at conventional imaging; P &lt; .01). This held true at multivariable analysis: (HR 6.184, 95% CI: 3.386-11-295; P &lt; .001) whilst no significant results were highlighted for Choline PET/CT. No significant associations for both PET types were found for local progression, BCR, and overall mortality (all P &gt; .05). Observation as an initial management strategy instead of adjuvant treatments was related with an increased risk of metastases (HR 1.808; 95% CI: 1.069-3.058; P &lt; .05). Conclusions: PSMA PET/CT cN+ patients with negative conventional imaging have an increased risk of systemic progression after RP compared to their counterparts with cN0M0 disease both at conventional and/or molecular imaging.</p

The Prognostic Role of Preoperative PSMA PET/CT in cN0M0 pN+ Prostate Cancer:A Multicenter Study

Context: Despite negative preoperative conventional imaging, up to 10% of patients with prostate cancer (PCa) harbor lymph-node involvement (LNI) at radical prostatectomy (RP). The advent of more accurate imaging modalities such as PET/CT improved the detection of LNI. However, their clinical impact and prognostic value are still unclear. We aimed to investigate the prognostic value of preoperative PET/CT in patients node positive (pN+) at RP. Evidence Synthesis: We retrospectively identified cN0M0 patients at conventional imaging (CT and/or MRI, and bone scan) who had pN+ PCa at RP at 17 referral centers. Patients with cN+ at PSMA/Choline PET/CT but cN0M0 at conventional imaging were also included. Systemic progression/recurrence was the primary outcome; Cox proportional hazards models were used for multivariate analysis. Evidence Acquisition: We included 1163 pN+ men out of whom 95 and 100 had preoperative PSMA and/or Choline PET/CT, respectively. ISUP grade ≥4 was detected in 66.6%. Overall, 42% of patients had postoperative PSA persistence (≥0.1 ng/mL). Postoperative management included initial observation (34%), ADT (22.7%) and adjuvant RT+/-ADT (42.8%). Median follow-up was 42 months. Patients with cN+ on PSMA PET/CT had an increased risk of systemic progression (52.9% vs. 13.6% cN0 PSMA PET/CT vs. 21.5% cN0 at conventional imaging; P &lt; .01). This held true at multivariable analysis: (HR 6.184, 95% CI: 3.386-11-295; P &lt; .001) whilst no significant results were highlighted for Choline PET/CT. No significant associations for both PET types were found for local progression, BCR, and overall mortality (all P &gt; .05). Observation as an initial management strategy instead of adjuvant treatments was related with an increased risk of metastases (HR 1.808; 95% CI: 1.069-3.058; P &lt; .05). Conclusions: PSMA PET/CT cN+ patients with negative conventional imaging have an increased risk of systemic progression after RP compared to their counterparts with cN0M0 disease both at conventional and/or molecular imaging.</p

Módulo de control de acceso a zonas restringidas de la granja, Román Gómez Gómez del Politécnico Colombiano Jaime Isaza Cadavid sede Marinilla Antioquia, Colombia

This project proposes the prototype implementation of a security and access control module in restricted areas, where research and production processes are carried out at the farm Roman Gómez Gómez of the Politécnico Colombiano Jaime Isaza Cadavid Jaime Isaza Cadavid, to improve the current access control system based on in QR technology, applied at the main entrance of the farm. All the hardware and software elements of the existing application will be characterized; Based on this, a security protocol is designed to authenticate and control people's access; Subsequently, the module containing the protocol is built, where the source code of the application is intervened, to authorize and record visits in each of the areas viewing real time, finally the improvements over the current system are validated by means of a test of functioning.Este proyecto plantea la implementación prototipo de un módulo de seguridad y control de acceso en zonas restringidas, donde se realizan procesos de investigación y producción en la granja Román Gómez Gómez del Politécnico Colombiano Jaime Isaza Cadavid, para mejorar el sistema actual de control de acceso basado en tecnología QR, aplicado en la entrada principal de la granja. Se caracterizará, todos los elementos de hardware y software de la aplicación existente; a partir de esta, se diseña un protocolo de seguridad para autenticar y controlar el acceso de personas; posteriormente, se construye el módulo que contiene el protocolo, donde se interviene el código fuente de la aplicación, para autorizar y registrar las visitas en cada una de las zonas visualizando tiempo real, finalmente se validan las mejoras sobre el sistema actual mediante una prueba de funcionamiento

Tecnológias de transporte óptico: hacía Optical Burst Switching (OBS)

The increasing demand for Internet traffic requires the development of new techniques based on the IP protocol to increase the capacity, performance and rate of transmission of packets. With the increase in traffic, existing networks are technological limited, therefore emerging technologies such as optical WDM (Wavelength Division Multiplexing) and MPLS (Multi Protocol Label Switching) to obtain higher yields. Additionally, optical networks provide an optimal solution to the capacity problem, where they have gone from being based networks to circuit-switched networks based on optical packet switching. Optical switching technologies such as OCS (Optical Switching Circuit) and OPS (Optical Packet Switching) have been proposals to take advantage of the great benefits offered by fiber optics. However, the implementation of OPS cannot currently be performed in its entirety due to technological limitations, in contrast with OCS, which today is the optical switching traditionally applied, but is inefficient for packet switching. For this reason, while OPS will be a reality, technology OBS (Optical Burst Switching) is proposed as an intermediate step between OCS and OPS. This article explains the importance of technologies focused mainly on WDM OBS networks, showing the reason for its emergence, as well as the advantages and disadvantages it offers compared to OCS and OPS.La creciente demanda de tráfico en Internet exige el desarrollo de nuevas técnicas basadas en el protocolo IP que permitan aumentar la capacidad, desempeño y tasa de envío de paquetes. Ante el aumento de tráfico, las redes actuales se encuentran limitadas tecnológicamente, razón por la cual surgen tecnologías ópticas como WDM (Wavelength Division Multiplexing) y MPLS (Multi Protocol Label Switching) para obtener mayor rendimiento. Adicionalmente, las redes ópticas proporcionan una solución óptima al problema de capacidad, donde han pasado de ser redes basadas en conmutación de circuitos a redes basadas en conmutación de paquetes ópticos. Tecnologías de conmutación óptica como OCS (Optical Circuit Switching) y OPS (Optical Packet Switching) han sido propuestas para aprovechar las grandes prestaciones que ofrece la fibra óptica. Sin embargo, actualmente la implementación de OPS no puede realizarse en su totalidad debido a limitaciones tecnológicas, caso contrario a OCS, donde hoy en día es la conmutación óptica tradicionalmente aplicada, sin embargo es ineficiente para la conmutación de paquetes. Por tal razón, mientras OPS sea una realidad, la tecnología OBS (Optical Burst Switching) se propone como paso intermedio entre OCS y OPS. En este artículo se explica la importancia de las tecnologías WDM enfocado principalmente en redes OBS, mostrando el motivo de su surgimiento, así como las ventajas y desventajas que ofrece en comparación con OCS y OPS