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https://purl.org/pe-repo/ocde/ford#5.02.04
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1
tesis doctoral
Publicado 2020
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Descargue el texto completo en el repositorio institucional de la Universidade Estadual de Campinas: https://hdl.handle.net/20.500.12733/1641647
2
artículo
Publicado 2021
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The influence of family and school on the level of independence of pre-school children is a fundamental aspect of integral development in early ages. This study has a quantitative descriptive approach. The aim of this study was to know the degree of Functional Independence in pre-school children in Cuenca (Ecuador). The participants were 30 children (3-5 years old), 15 from a public institution and 15 from a private one. The Pediatric Evaluation of Disability Inventory Computer Adaptive Test (PEDICAT) was used as an evaluation tool, which measures the level of independence in 4 areas. The results showed that the children from the private institution were more independent in the areas of Daily and Social Cognitive Activities; while in the area of Mobility and Responsibility both groups obtained the same level. These data served as a basis to develop a parent working guide, in which activi...
3
artículo
Publicado 2022
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“Cotton is the most widely used natural fiber for textiles; however, the capacity of cotton fibers to absorb large amounts of moisture, retain oxygen, and have a high specific surface area makes them more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to continue the assessment of our developed nanocomposite and evaluate the antibacterial and antifungal activity of the nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC) against Escherichia coli, Staphylococcus aureus, and Candida albicans, evaluated by the well diffusion method. The antibacterial activity against E. coli and S. a...
4
artículo
Publicado 2022
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Cotton is the most widely used natural fiber for textiles; however, the capacity of cotton fibers to absorb large amounts of moisture, retain oxygen, and have a high specific surface area makes them more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to continue the assessment of our developed nanocomposite and evaluate the antibacterial and antifungal activity of the nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC) against Escherichia coli, Staphylococcus aureus, and Candida albicans, evaluated by the well diffusion method. The antibacterial activity against E. coli and S. aure...
5
artículo
Publicado 2022
Enlace
Enlace
Cotton is the most widely used natural fiber for textiles but its innate capacity to absorb moisture, retain oxygen, and high specific surface area make it more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to synthesize and characterize a nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC), which was utilized to provide a functional finish to cotton fabric. The scanning electron microscope (SEM) to produce a scanning transmission electron microscope (STEM) image showed that the nanocomposite presents AgNPs with a 5–20 nm size. The X-ray diffraction (XRD) analysis confirmed the ...
6
artículo
Publicado 2022
Enlace
Enlace
Cotton is the most widely used natural fiber for textiles but its innate capacity to absorb moisture, retain oxygen, and high specific surface area make it more prone to microbial contamination, becoming an appropriate medium for the growth of bacteria and fungi. In recent years, the incorporation of silver nanoparticles in textile products has been widely used due to their broad-spectrum antibacterial activity and low toxicity towards mammalian cells. The aim of the current study is to synthesize and characterize a nanocomposite based on silver nanoparticles and carboxymethyl chitosan (AgNPs-CMC), which was utilized to provide a functional finish to cotton fabric. The scanning electron microscope (SEM) to produce a scanning transmission electron microscope (STEM) image showed that the nanocomposite presents AgNPs with a 5–20 nm size. The X-ray diffraction (XRD) analysis confirmed the ...
7
tesis de maestría
A neural network is a mathematical model that is able to perform a task automatically or semi-automatically after learning the human knowledge that we provided. Moreover, a Convolutional Neural Network (CNN) is a type of sophisticated neural network that has shown to efficiently learn tasks related to the area of image analysis (among other areas). One example of these tasks is image segmentation, which aims to find regions or separable objects within an image. A more specific type of segmentation called semantic segmentation, makes sure that each region has a semantic meaning by giving it a label or class. Since neural networks can automate the task of semantic segmentation of images, they have been very useful for the medical area, applying them to the segmentation of organs or abnormalities (tumors). Therefore, this thesis project seeks to address the task of semantic segmentation of ...
8
artículo
Publicado 2021
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Edible films for packaging and plastic material replacement purposes are produced based on biodegradable raw materials such as polysaccharides and agents with biological properties, making the final product an alternative for the protection and extension of the shelf life of foods. The main objective of the present research was to evaluate the antioxidant and antimicrobial activity of chitosan biofilms functionalized with muña essential oil. For this purpose, 12 edible films were formulated with 3 concentrations of chitosan (1, 2 and 3%) and 3 of essential oil (0.5, 2 and 5%) including chitosan-only blanks. The antioxidant activity evaluated in biofilms with a higher content of muña essential oil presents more than 60% of DPPH free radical uptake, while in the antimicrobial activity evaluated by petri dishes grown with Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli...
9
artículo
Publicado 2024
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THIS RESEARCH PROJECT IS CARRIED OUT TO MEASURE THE CONTAMINATED AIR AND THE CONCENTRATION OF SUSPENDED PARTICLES RANGING BETWEEN 2.5ΜG AND 10ΜG ALSO KNOWN AS PM10 AND SUSPENDED PARTICLES SMALLER THAN 2.5ΜG KNOWN AS PM2.5, IN THE, DISTRICT OF VENTANILLA AND MI PERU, IN PERU. THE WORK CONSISTS OF MEASURING CO2 AND PM2.5 AND PM10 POLLUTION TO PREVENT THE HEALTH OF THE INHABITANTS OF THE AREA UNDER STUDY. THE IMPLEMENTATION OF A SYSTEM TO MEASURE THE CO2 CONTAMINATED AIR AND THE CONCENTRATION OF PM10 AND PM2.5 POLLUTANTS IS CARRIED OUT. THE MEASUREMENT SYSTEM CONSISTS OF A DUST AND CO2 SENSOR, THE SYSTEM ALSO INCLUDES AN AMBIENT TEMPERATURE AND HUMIDITY SENSOR, A DHT11 SENSOR FOR THE MEASUREMENT OF AMBIENT TEMPERATURE AND HUMIDITY, AND AN ESP8266 MODULE FOR WIRELESS RECORDING AND CLOUD RECORDING. THE SENSOR VALUES ARE PROCESSED BY AN ARDUINO UNO R3 CARD AND ESP8266 VIA WIFI. A CLOUD COMP...
10
tesis de grado
Publicado 2023
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Enlace
La Gestión del personal y la manera en que esta se encuentra estructurada representa la base y punto de partida de las oportunidades que permitan gatillar acciones hacia la búsqueda de la productividad y maximización del valor agregado de la compañía. No obstante, dichas gestiones base son un factor común de lo que las organizaciones actuales y en particular las de índole nacional no consideran una prioridad y menos una necesidad a entablar dentro de la toma de decisiones cotidianas. En el Perú, son pocas las Mypes que destinan recursos y esfuerzo por robustecer y transversalizar las actividades y tareas diarias del colaborador en aras de fomentar un ambiente co-creativo de generación de valor. El presente trabajo de investigación tiene como objetivo plasmar la realidad de negocio de la empresa Gangabet, una organización dedicada al rubro de las apuestas deportivas, con respec...
11
artículo
Publicado 2006
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Enlace
The Total Solar Irradiance (TSI) is the total amount of solar energy present per square unit every moment beyond the atmosphere, so it's changing every time along the year, although for many practical purposes its average is taken and has been called: The Solar Constant (1367 W/m2). In this paper, the historical efforts made to quantifcate the TSI are reviewed, the latest advances in this matter are presented and a new method to calculate its monthly average based on the SunSpot Number is proposed to apporach to its value as close as 0.05. W/m2 (RMS = 0.002).
12
artículo
Publicado 2021
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The Internet increasingly radiates its essentialness in relationships, and in the different areas and activities of people. However, as we make a greater use of it, we expose our personal data to be stored and processed by third parties for commercial purposes. This is made possible by a tool that is present in most of the websites we browse on a daily basis: cookies.In this article, the author assesses the risks involved in the use of cookies for advertising purposes without an adequate legal framework. Furthermore, he analyzes the prevention and precautionary mechanisms to follow in order to ensure a balance that respects the rights of users.
13
artículo
Publicado 2021
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The Internet increasingly radiates its essentialness in relationships, and in the different areas and activities of people. However, as we make a greater use of it, we expose our personal data to be stored and processed by third parties for commercial purposes. This is made possible by a tool that is present in most of the websites we browse on a daily basis: cookies.In this article, the author assesses the risks involved in the use of cookies for advertising purposes without an adequate legal framework. Furthermore, he analyzes the prevention and precautionary mechanisms to follow in order to ensure a balance that respects the rights of users.
14
revisión
Publicado 2017
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Enlace
Stroke is a major cause of death and disability, with most of its burden now affecting low- and middle-income countries (LMIC). People in rural areas of LMIC who have a stroke receive very little acute stroke care and local healthcare workers and family caregivers in these regions lack the necessary knowledge to assist them. Intriguingly, a recent rapid growth in cell-phone use and digital technology in rural areas has not yet been appropriately exploited for health care training and delivery purposes. What should be done in rural areas, at the community setting-level, where access to healthcare is limited remains a challenge. We review the evidence on improving post-stroke outcomes including lowering the risks of functional disability, stroke recurrence, and mortality, and propose some approaches, to target post-stroke care and rehabilitation, noting key challenges in designing suitable...
15
artículo
Publicado 2017
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The objective was to apply RMySQL, dplyr and graphing functions of the database to the processes of admission at the Central Admission Commission at the National University of the Altiplano. The source code of the functions that return data.frames of the observations of the database and functions was implemented to generate the graphs of dynamic form such as ggplot and barplot; summarise, select, group_by, merge, arrange, unique and others of project R were used. The result indicates that the percentage of entrants, of the ordinary and extraordinary admission processes, according to the number of applicants is: 22.91% were admitted to Medicine, Veterinary and Animal Science; 10.87% to Nursing; 26.83% a Biology; 2.44% in Human Medicine; 17.64% to Human Nutrition and 7.25% to Dentistry, included between March 17, 2013 and January 22, 2017; also, the percentage of admissions by or...
16
artículo
Publicado 2017
Enlace
Enlace
The objective was to apply RMySQL, dplyr and graphing functions of the database to the processes of admission at the Central Admission Commission at the National University of the Altiplano. The source code of the functions that return data.frames of the observations of the database and functions was implemented to generate the graphs of dynamic form such as ggplot and barplot; summarise, select, group_by, merge, arrange, unique and others of project R were used. The result indicates that the percentage of entrants, of the ordinary and extraordinary admission processes, according to the number of applicants is: 22.91% were admitted to Medicine, Veterinary and Animal Science; 10.87% to Nursing; 26.83% a Biology; 2.44% in Human Medicine; 17.64% to Human Nutrition and 7.25% to Dentistry, included between March 17, 2013 and January 22, 2017; also, the percentage of admissions by or...
17
artículo
Publicado 2017
Enlace
Enlace
The objective was to apply RMySQL, dplyr and graphing functions of the database to the processes of admission at the Central Admission Commission at the National University of the Altiplano. The source code of the functions that return data.frames of the observations of the database and functions was implemented to generate the graphs of dynamic form such as ggplot and barplot; summarise, select, group_by, merge, arrange, unique and others of project R were used. The result indicates that the percentage of entrants, of the ordinary and extraordinary admission processes, according to the number of applicants is: 22.91% were admitted to Medicine, Veterinary and Animal Science; 10.87% to Nursing; 26.83% a Biology; 2.44% in Human Medicine; 17.64% to Human Nutrition and 7.25% to Dentistry, included between March 17, 2013 and January 22, 2017; also, the percentage of admissions by or...
18
artículo
Publicado 2017
Enlace
Enlace
The objective was to apply RMySQL, dplyr and graphing functions of the database to the processes of admission at the Central Admission Commission at the National University of the Altiplano. The source code of the functions that return data.frames of the observations of the database and functions was implemented to generate the graphs of dynamic form such as ggplot and barplot; summarise, select, group_by, merge, arrange, unique and others of project R were used. The result indicates that the percentage of entrants, of the ordinary and extraordinary admission processes, according to the number of applicants is: 22.91% were admitted to Medicine, Veterinary and Animal Science; 10.87% to Nursing; 26.83% a Biology; 2.44% in Human Medicine; 17.64% to Human Nutrition and 7.25% to Dentistry, included between March 17, 2013 and January 22, 2017; also, the percentage of admissions by or...
19
artículo
Publicado 2021
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In the competition of the lighting market, LED technology has stood out for excellent characteristics, one of which is the possibility of dimming, compared to other technologies. The dimming capacity allows to find the comfort zone with respect to two parameters, illuminance and correlated colour temperature (CCT). The present work provides a methodology to find comfort with respect to two variables, the level of illumination and the CCT. A controller with a simple structure, supported by Arduino, is proposed to control the above-mentioned variables of LEDs. The LEDs are located on a tape attached to a heat sink. In addition, the use of a light box as an environment for analysis is proposed. The design of this cubicle is based on literature. The controller has the possibility to regulate 12 different channels and the linearity between the PWM output and the illuminance was verified. The ...
20
artículo
Publicado 2022
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The aim of this study was to determine the knowledge of the population of Lima about the professional functions of the veterinarian (VM) A study was developed based on virtual surveys aimed at residents of Metropolitan Lima, in which recognized functions of veterinary doctors were shown. The respondents had to give their opinion if the functions corresponded exclusively to the VM, shared with other professions or if they were attributed to other professions. In total, 671 valid surveys were obtained. The main functions attributed exclusively to the VM were to treat or prevent diseases in pets (87.6%), to promote responsible pet ownership (76.8%), to control dogs or other stray animals (67.5%), to investigate the form of transmission of animal diseases (62.4%). Likewise, the functions attributed to the VM and other professionals were: rescuing animals in disaster situations (60.7%), educa...
