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1
artículo
Publicado 2013
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The wage difficulties, the socio-labour aspects are especially difficult to reflect and that is why, in thisarticle the authors plan to introduce tools in Peruvian companies to develop actions of equality thatthey consider fundamental and that is giving satisfactory results in companies from other countries,creating a better work environment that results in an improvement of business results and impacts onthe improvement of working conditions from the perspective of gender equity.In the article there are references of how laws, social and business measures are the ones that shouldhelp tools to exist to achieve equality of opportunity between women and men in the workingenvironment. Showing the benefits of egalitarian policies and actions to prevent the brain drain, it isalso important to receive such benefits. It shows measures that are already implemented and that willhelp to make aware...
2
artículo
Publicado 2013
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The wage difficulties, the socio-labour aspects are especially difficult to reflect and that is why, in thisarticle the authors plan to introduce tools in Peruvian companies to develop actions of equality thatthey consider fundamental and that is giving satisfactory results in companies from other countries,creating a better work environment that results in an improvement of business results and impacts onthe improvement of working conditions from the perspective of gender equity.In the article there are references of how laws, social and business measures are the ones that shouldhelp tools to exist to achieve equality of opportunity between women and men in the workingenvironment. Showing the benefits of egalitarian policies and actions to prevent the brain drain, it isalso important to receive such benefits. It shows measures that are already implemented and that willhelp to make aware...
3
artículo
This paper will briefly overview how the constant development of information and communication technologies (ICTs) has changed the interaction between people today. Real experiences have been transferred to a virtualized method, in this case, the internet. Although the space-time barriers of traditional communication have been fragmented, social relations have become more assertive, but new problems related to different behaviors arise. Bullying is defined as an act that threatens the well-being of a person and becomes cyberbullying when it is carried out over the internet, generating large-scale problems of anxiety, depression, and even the act of suicide, which is why it is essential to detect these malicious behaviors in time. We will use a Natural Language Processing (NLP) tool using Twitter as the basis for the extraction of knowledge bases.
4
tesis de grado
La detección de barcos usando imágenes satelitales ópticas es una tarea muy importante para el campo de la seguridad marítima, ya sea en la búsqueda de embarcaciones perdidas o en el control marítimo de tipo comercial o militar. A esto se suman los avances en el campo de visión por computador, especialmente en el uso de modelos basados en inteligencia artificial, los cuales, permiten construir sistemas de detección robustos y más precisos. Sin embargo, los escenarios geográficos, propios de una imagen satelital, limitan el desarrollo de este tipo de sistemas ya que requieren de la disponibilidad de un gran número de imágenes en diferentes escenarios. En el presente trabajo se propone un nuevo enfoque para la Detección de Barcos uti- lizando dos nuevos conjuntos de datos etiquetados con cuadros delimitadores horizontales. Así mismo, se presenta una nueva herramienta de etiqu...
5
tesis de grado
Publicado 2020
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Botnets are some of the most recurrent cyber-threats, which take advantage of the wide heterogeneity of endpoint devices at the Edge of the emerging communication environments for enabling the malicious enforcement of fraud and other adversarial tactics, including malware, data leaks or denial of service. There have been significant research advances in the development of accurate botnet detection methods underpinned on supervised analysis but assessing the accuracy and performance of such detection methods requires a clear evaluation model in the pursuit of enforcing proper defensive strategies. In order to contribute to the mitigation of botnets, this paper introduces a novel evaluation scheme grounded on supervised machine learning algorithms that enable the detection and discrimination of different botnets families on real operational environments. The proposal relies on observing, u...
6
objeto de conferencia
Publicado 2014
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The authors would like to thank to SEDIMED (a medical diagnosis center company in Peru) who supported with a medical images database. This work was partially funded by the Fondos para la Innovacion, Ciencia y Tecnologia (FINCyT-Peru) under contract 142-10-PITEA-FINCyT and CONCYTEC-Peru with STIC-AmSud 2013 under the FERMI project.
7
tesis doctoral
Blood-free risk scores and neuropathy assessment tools to detect undiagnosed type 2 diabetes in Peru
Publicado 2018
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La prevalencia de la diabetes mellitus tipo 2 está aumentando, especialmente en países de ingresos bajos y medios, donde la situación empeora porque aproximadamente la mitad de los casos desconocen la enfermedad. El examen universal que utiliza marcadores de sangre puede ser un desafío en entornos con recursos limitados. La identificación de estos individuos puede abordarse potencialmente utilizando puntajes de riesgo y herramientas de evaluación de neuropatía. Este estudio tuvo como objetivo evaluar la precisión diagnóstica del FINDRISC, un puntaje de riesgo libre de sangre, tres herramientas de evaluación de neuropatía (EZSCAN, pupilómetro y biotesiómetro), solo y en combinación. Se realizó un estudio basado en la población que incluyó una muestra aleatoria estratificada por sexo de participantes de Tumbes, un área semiurbana en el norte de Perú. La DM2 no diagnostic...
8
artículo
Publicado 2020
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Objective: to develop a microfluidic system (lab-on-a-chip) for detecting circulating breast cancer tumor cells. Materials and methods: the device was designed using 3D technology, and it was manufactures using soft photolithography and a laser cutting machine. The system performance and its magnetic settings were assessed using Jurkat cells and breast cancer cells that show different expression of CD45 and EpCAM surface markers. Antibodies against these markers were bound to magnetic pellets. Additionally, iron nanoparticles were used for assessing their entrapment. Results: nanoparticles were significantly trapped in the area set by magnetic field modeling. Tumor cells labeled with magnetic antibodies became trapped. Conclusions: we were able to manufacture a lab-on-a-chip system that is capable to trap circulating breast cancer tumor cells, which may become an excellent tool for diagn...
9
artículo
Publicado 2020
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The search for alternative business models and the rise of new technologies have led to a transformation in the routines of journalists and the role of audiences. This debate has increased as a result of the prominence of platforms such as social networks or instant messaging applications. This study analyzes the implementation of Telegram in journalistic routines due to the usefulness, security and privacy offered by the platform. Thanks to these technical qualities, Telegram has broken into the routine practices of journalists, especially as a source of personalized information and as a news distribution channel. The perception of communication professionals and students is positive, in relation to the consumption of information through breaking news and relevant headlines due to the simplicity and originality of use of the application. However, in spite of its incursion into...
10
artículo
Publicado 2015
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Breast cancer is the second most frequent malignant neoplasm in the world and the fifth cause of death from cancer in women. In Peru, breast cancer is second in incidence and the third cause of death from cancer in women. Mammography screening began in 1960 with the goal of detecting cancer at its smallest size before clinically evident in order to have better prognosis and survival. Several trials have been done since to determine mammography importance as a screening method and to establish age to begin, frequency and when to stop screening. In this article the role of mammography as screening tool is reviewed, as well as controversies on use, side effects, and recommendations on its use in Peru.
11
artículo
Publicado 1998
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The specificity between bacteriophages and bacteria is a feature that has been successfully used for the detection of several microbial species. For this reason the detection of vibriophages is a valuable research tool, and it might be a fast and convenient method to Vibrio cholerae diagnostics. The goal of this study was to detect vibriophages in shallow seawater samples and to determine the morphological characteristics of these vibriophages. It was determined the growth kinetics of a strain of Vibrio cholerae serotype Inaba. Seawater samples taken from five shallow points from an adjacent sector to La Chira beach, and Rímac and Chillón river mouths were analyzed qualitatively and quantitatively using different inoculum volumes and several incubation periods. The bacteriophages were concentrated and stained for the morphological study by transmission electron microscopy. The results ...
12
artículo
Publicado 1998
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The specificity between bacteriophages and bacteria is a feature that has been successfully used for the detection of several microbial species. For this reason the detection of vibriophages is a valuable research tool, and it might be a fast and convenient method to Vibrio cholerae diagnostics. The goal of this study was to detect vibriophages in shallow seawater samples and to determine the morphological characteristics of these vibriophages. It was determined the growth kinetics of a strain of Vibrio cholerae serotype Inaba. Seawater samples taken from five shallow points from an adjacent sector to La Chira beach, and Rímac and Chillón river mouths were analyzed qualitatively and quantitatively using different inoculum volumes and several incubation periods. The bacteriophages were concentrated and stained for the morphological study by transmission electron microscopy. The results ...
13
artículo
Publicado 2020
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This paper analyzes the transition of the traditional Peruvian educational system to virtual mode, as a contingency measure for the spread of COVID-19. The impact of the implemented strategies is evaluated and the perception they have generated in the main protagonists of the educational process is measured. A series of deficiencies are identified and discussed, it is also reported on the detection of key points for the development of an efficient educational plan for millions of schoolchildren, emphasizing those with the lowest rate of technological accessibility and connectivity.
14
artículo
Publicado 2020
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This paper analyzes the transition of the traditional Peruvian educational system to virtual mode, as a contingency measure for the spread of COVID-19. The impact of the implemented strategies is evaluated and the perception they have generated in the main protagonists of the educational process is measured. A series of deficiencies are identified and discussed, it is also reported on the detection of key points for the development of an efficient educational plan for millions of schoolchildren, emphasizing those with the lowest rate of technological accessibility and connectivity.
15
artículo
Publicado 2021
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Sinus pathologies of odontogenic origin (SPO) are common in the clinical consultation; however, the dentist has some complications to detect them because their discovery is usually incidental and through imaging studies that, in most cases, are of low quality. The objective of this review is to describe the pertinent imaging resources that allow the detection of the most frequent SPO and, at the same time, carry out an updated review of the scientific literature in order to recognize the imaging of both the maxillary sinus and the dental organs. The scientific literature focused on this topic, published between 2014 and 2020, was consulted. The review showed two important results: the first is that Cone Beam Tomography (CBCT) represents the imaging modality with the best performance for the detection of SPO by what can be considered the gold standard for this purpose. The second is that ...
16
artículo
Implementation of an intelligent antimalware system for the detection of malicious links in QR codes
Publicado 2024
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The increasing use of QR codes across various sectors has facilitated the transfer of information but has also exposed users to new cybersecurity threats, such as quishing, a variant of phishing that leverages these codes to redirect users to malicious websites. To address this issue, the study aimed to implement an antimalware system that employs machine learning alongside the VirusTotal API to analyze and classify links embedded in QR codes in real time. The methodology was structured into four stages: capturing and decoding QR codes using OpenCV, analyzing extracted URLs with the VirusTotal API, issuing preventive alerts based on the link classification, and evaluating system performance with a dataset of 100 QR codes (50 safe and 50 malicious). The results showed 100 % accuracy, 95 % sensitivity, and an average response time of 48.95 ms. No false positives were detected, and only a s...
17
artículo
Publicado 2023
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Objective: to establish the discriminative capacity of the Finnish risk score for dysglycemia in users of a family medicine unit located in the suburbs of the State of Guerrero, Mexico. Material and methods: We conducted a cross-sectional study from March to December 2021 in a Family Medicine Unit. With prior informed consent, we applied the Finnish risk score for the detection of dysglycemia to 200 people between the ages of 20 and 60, we obtained somatometric measurements and fasting plasma glucose figures. We estimated sensitivity, specificity, positive and negative predictive value, positive and negative likelihood ratio, and calculated the area under the curve (AUC) to estimate the discriminative ability of the risk score, where the reference test was fasting glucose. We performed bivariate analysis to identify factors associated with dysglycemia, obtaining Odds Ratio (OR) and 95% c...
18
artículo
Publicado 2023
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Objective: to establish the discriminative capacity of the Finnish risk score for dysglycemia in users of a family medicine unit located in the suburbs of the State of Guerrero, Mexico. Material and methods: We conducted a cross-sectional study from March to December 2021 in a Family Medicine Unit. With prior informed consent, we applied the Finnish risk score for the detection of dysglycemia to 200 people between the ages of 20 and 60, we obtained somatometric measurements and fasting plasma glucose figures. We estimated sensitivity, specificity, positive and negative predictive value, positive and negative likelihood ratio, and calculated the area under the curve (AUC) to estimate the discriminative ability of the risk score, where the reference test was fasting glucose. We performed bivariate analysis to identify factors associated with dysglycemia, obtaining Odds Ratio (OR) and 95% c...
19
artículo
Publicado 2005
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The aim of this study was to standardize the indirect ELISA test for the detection of antibodies and to evaluate a coproantigen detection test (ES-78 sandwich ELISA) for the Fasciola hepatica diagnoses in alpacas. For the indirect ELISA, the excretion–secretion products (ES) were used as antigens and a peroxidasa anti IgG immunoconjugate of alpaca was obtained through protein A affinity cromatography. The detection ELISA was tested with the FASCIDIG diagnostic kit, which detects metabolics antigens using an AcM-ES78 monoclonal antibody of the IgG 2a sub class. Optical Density (OD) values between 0.075 and 1.435 were obtained using the indirect ELISA, where the cut-off point was 0.226. The positive control group animals were positive to the test with values between 0.331 and 1.435. The negative control group animals were negative to the test with values between 0.075 and 0.226. OD value...
20
objeto de conferencia
The diagnostic process of respiratory diseases requires experience and skills to assess the different pathologies that patients may develop. Unfortunately, the lack of qualified radiologists is a global problem that limits respiratory diseases diagnosis. Therefore, it will be useful to have a tool that minimizes errors and workload, improves efficiency, and speeds up the diagnostic process in order to provide a better healthcare service to the community. This research proposes a methodology to detect pathologies by using deep learning architectures. The present proposal is divided into three types of experiments. The first one evaluates the performance of feature descriptors such as SIFT, SURF, and ORB in medical images with machine learning models as an introduction to the last experiment. The second one evaluates the performance of deep learning architectures such as ResNet50, Alexnet,...
