EL SISTEMA DE INFORMACIÓN COMO SOPORTE AL PROCESO DE ATENCIÓN DE PEDIDOS PARA OPTIMIZAR LA GESTIÓN DE LAS EMPRESAS COMERCIALIZADORAS DE OBRAS ACADÉMICAS / THE INFORMATION SYSTEM AS A SUPPORT OF THE ORDERS ATTENTION PROCESS TO OPTIMIZE THE MANAGEMENT OF T

RESUMEN El objetivo que se pretende alcanzar en la investigación es determinar la medida del sistema de información como soporte al proceso de atención de pedidos, influyendo en la gestión de las empresas comercializadoras de obras académicas. Asimismo, el problema exige responder, ¿En qué medida el sistema de información, como soporte al proceso de atención de pedidos, influye en la gestión de las empresas comercializadoras de obras académicas? Para este fin se apela al método experimental, que es investigar las posibles relaciones causa-efecto, exponiendo a uno o más grupos experimentales en acción de dos o más condiciones de tratamiento; comparando los resultados con uno o más grupos de control que no reciben el tratamiento. La elección de los elementos del experimento debe obedecer a un criterio estadístico riguroso. Palabras claves: sistema, información, proceso, gestión, comercio, sistema de información.   ABSTRACT The objective to be achieved in this investigation is to determine the extent of the information system as support to the orders attention process, influencing the management of the trading companies for academic works. Likewise, the problem needs to give answer to the following question: To what extent the information system as support to the orders attention process influence the management of the trading companies for academic works?. The experimental method is used for this purpose, that is to investigate the possible relationships cause - effect, exposing one or more experimental groups in action to two or more treatment conditions comparing the results with one or more control groups that don’t receive the treatment. The election of the experiment elements should obey to a rigorous statistical standard. Key words: system, information, process, management, trade, information system

SIMPLIFICACIÓN ADMINISTRATIVA PARA MEJORAR LA ATENCIÓN AL CIUDADANO EN TRAMIFÁCIL EN LA MUNICIPALIDAD PROVINCIAL DE LAMBAYEQUE

El presente estudio tuvo como objetivo principal Proponer nuevas alternativas basadas en la simplificación administrativa para mejorar la atención al ciudadano en Tramifácil Municipalidad Provincial de Lambayeque 2020, la metodología utilizada fue él el tipo descriptivo y su diseño no experimental, la población de estudio estuvo conformada por 38 ciudadanos que han realizado algún trámite y 36 administrativos como unidades de estudio y su selección fue por conveniencia, como técnica se utilizó la encuesta y su instrumento el cuestionario. Los resultados fueron que el nivel de atención al ciudadano es deficiente porque no se está teniendo una buena experiencia en la atención al ciudadano. Se concluye que las deficiencias en cuanto a la simplificación administrativa de la institución se lograron evidenciar que no se está utilizando la tecnología de manera adecuada, asimismo la falta de capacitación para el personal genera inconvenientes al momento de la atención al ciudadano porque demoran mucho en darle una solución a su problema generando de esta manera una mala experiencia al ciudadano es por ello que se recomienda tomar acciones necesarias que le permitan llevar a cabo un mejor desarrollo de sus actividades mediante acciones correctivas

Retinal blood vessels extraction using probabilistic modelling

© 2014 Kaba et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.This article has been made available through the Brunel Open Access Publishing Fund.The analysis of retinal blood vessels plays an important role in detecting and treating retinal diseases. In this review, we present an automated method to segment blood vessels of fundus retinal image. The proposed method could be used to support a non-intrusive diagnosis in modern ophthalmology for early detection of retinal diseases, treatment evaluation or clinical study. This study combines the bias correction and an adaptive histogram equalisation to enhance the appearance of the blood vessels. Then the blood vessels are extracted using probabilistic modelling that is optimised by the expectation maximisation algorithm. The method is evaluated on fundus retinal images of STARE and DRIVE datasets. The experimental results are compared with some recently published methods of retinal blood vessels segmentation. The experimental results show that our method achieved the best overall performance and it is comparable to the performance of human experts.The Department of Information Systems, Computing and Mathematics, Brunel University

Benchmarking of human Y-chromosomal haplogroup classifiers with whole-genome and whole-exome sequence data

In anthropological, medical, and forensic studies, the nonrecombinant region of the human Y chromosome (NRY) enables accurate reconstruction of pedigree relationships and retrieval of ancestral information. Using high-throughput sequencing (HTS) data, we present a benchmarking analysis of command-line tools for NRY haplogroup classification. The evaluation was performed using paired Illumina data from whole-genome sequencing (WGS) and whole-exome sequencing (WES) experiments from 50 unrelated donors. Additionally, as a validation, we also used paired WGS/WES datasets of 54 individuals from the 1000 Genomes Project. Finally, we evaluated the tools on data from third-generation HTS obtained from a subset of donors and one reference sample. Our results show that WES, despite typically offering less genealogical resolution than WGS, is an effective method for determining the NRY haplogroup. Y-LineageTracker and Yleaf showed the highest accuracy for WGS data, classifying precisely 98% and 96% of the samples, respectively. Yleaf outperforms all benchmarked tools in the WES data, classifying approximately 90% of the samples. Yleaf, Y-LineageTracker, and pathPhynder can correctly classify most samples (88%) sequenced with third-generation HTS. As a result, Yleaf provides the best performance for applications that use WGS and WES. Overall, our study offers researchers with a guide that allows them to select the most appropriate tool to analyze the NRY region using both second- and third-generation HTS data

Effects of the Behavior of two natural enemies to reduce populations of (heliothis zea) in the Corn Corn crop

La presencia de plagas en el cultivo del Maíz en su etapa de choclo ha causado pérdidas económicas en el Perú. El estudio surge como objetivo: Evaluar la efectividad de dos predadores en estudio en control de Heliothis zea. en el cultivo de maíz, comparar la efectividad de dos enemigos naturales del Heliothis zea; Para ello se seleccionaron tres lotes de maíz variedad San Jerónimo, en etapas de floración, maduración para evaluar porcentajes de predacion de insectos en estudio fenológicas, Las observaciones en campo se realizó cada 10 días, teniendo presencia de predadores de Orius insidiosus (Hemiptera: Anthocoridae). Los estados inmaduros del mazorquero (Heliothis zea). Se evaluaron en tres etapas floración, fructificación y maduración. Los resultados encontrados de predacion Coleomegilla maculata y Orius insidiosus, La etapa de floración el C. maculata tiene un 13.71 % en los diferentes estados del Heliothis zea, siendo menor porcentaje 12.71 % de Orius insidiosus esto se debe a que C. maculata tiene mayor actividad en estadios larvales, La etapa de maduración C. maculata alcanza 24.71 % y Orius insidiosus 26.71%. El porcentaje de predacion de insectos en estudio mostraron mayor actividad predatora el Orius insidiosus, C. maculata y Orius insidiosus en la etapa de floración del cultivo de maíz.The presence of pests in the cultivation of maize in its choclo stage has caused economic losses in Peru. The study aims to: Evaluate the effectiveness of two predators under study in control of Heliothis zea. in maize cultivation, compare the effectiveness of two natural enemies of Heliothis zea; For this purpose, three batches of maize variety Saint Jerome were selected, in flowering stages, maturation to evaluate percentages of predation of insects in phenological study, Observations in the field was made every 10 days, having the presence of predators of Orius insidiosus (Hemiptera: Anthocoridae). The immature states of the mazorquero (Heliothis zea). They were evaluated in three stages flowering, fruiting and maturation. The results found from predation Coleomegilla maculata and Orius insidiosus, the flowering stage C. maculata has 13.71 % in the different states of Heliothis zea, being less percentage 12.71 % of Orius insidiosus this is because C. maculata has greater activity in larval stages, the maturation stage C. maculata reaches 24.71 % and Orius insidiosus 26.71%. The percentage of predation of insects under study showed increased predatory activity in Orius insidiosus, C. maculata and Orius insidiosus at the flowering stage of maize cultivation

Rectal Transmission of Transmitted/Founder HIV-1 Is Efficiently Prevented by Topical 1% Tenofovir in BLT Humanized Mice

Rectal microbicides are being developed to prevent new HIV infections in both men and women. We focused our in vivo preclinical efficacy study on rectally-applied tenofovir. BLT humanized mice (n = 43) were rectally inoculated with either the primary isolate HIV-1(JRCSF) or the MSM-derived transmitted/founder (T/F) virus HIV-1(THRO) within 30 minutes following treatment with topical 1% tenofovir or vehicle. Under our experimental conditions, in the absence of drug treatment we observed 50% and 60% rectal transmission by HIV-1(JRCSF) and HIV-1(THRO), respectively. Topical tenofovir reduced rectal transmission to 8% (1/12; log rank p = 0.03) for HIV-1(JRCSF) and 0% (0/6; log rank p = 0.02) for HIV-1(THRO). This is the first demonstration that any human T/F HIV-1 rectally infects humanized mice and that transmission of the T/F virus can be efficiently blocked by rectally applied 1% tenofovir. These results obtained in BLT mice, along with recent ex vivo, Phase 1 trial and non-human primate reports, provide a critically important step forward in the development of tenofovir-based rectal microbicides

Effect of a Community Popular Opinion Leader HIV/STI Intervention on Stigma in Urban, Coastal Peru

Evaluating interventions that reduce HIV stigma may help to craft effective stigma-reduction programs. This study evaluates the effects of a community popular opinion leader HIV/STI intervention on stigma in urban, coastal Peru. Mixed effects modeling was used to analyze data on 3,049 participants from the Peru site of the NIHM collaborative trial. Analyses looked at differences between the comparison and intervention groups on a stigma index from baseline to 12- and 24-month follow-up. Sub-analyses were conducted on heterosexual-identified men (esquineros), homosexual-identified men (homosexuales), and socially marginalized women (movidas). Compared to participants in the comparison group, intervention participants reported lower levels of stigma at 12- and 24-month follow-up. Similar results were found within esquineros and homosexuales. No significant differences were found within movidas. Findings suggest that interventions designed to normalize HIV prevention behaviors and HIV communication can reduce HIV-related stigma and change community norms

Imaging of ependymomas: MRI and CT

The imaging features of intracranial and spinal ependymoma are reviewed with an emphasis on conventional magnetic resonance imaging (MRI), perfusion MRI and proton magnetic resonance spectroscopy, and computed tomography. Imaging manifestations of leptomeningeal dissemination of disease are described. Finally, salient imaging features obtained in the postoperative period to evaluate completeness of surgical resection, and thereafter for long-term surveillance for disease recurrence, are reviewed