Tópicos Sugeridos dentro de su búsqueda.
Tópicos Sugeridos dentro de su búsqueda.
https://purl.org/pe-repo/ocde/ford#5.02.04
98
https://purl.org/pe-repo/ocde/ford#6.04.08
77
https://purl.org/pe-repo/ocde/ford#2.11.04
54
https://purl.org/pe-repo/ocde/ford#2.02.04
32
https://purl.org/pe-repo/ocde/ford#2.01.01
29
https://purl.org/pe-repo/ocde/ford#5.03.01
29
https://purl.org/pe-repo/ocde/ford#5.00.00
27
más ...
Buscar alternativas:
based function » basis function (Expander búsqueda)
area based » cream based (Expander búsqueda), area basal (Expander búsqueda), care based (Expander búsqueda)
based function » basis function (Expander búsqueda)
area based » cream based (Expander búsqueda), area basal (Expander búsqueda), care based (Expander búsqueda)
1
artículo
Publicado 2022
Enlace
Enlace
“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...
2
artículo
Publicado 2022
Enlace
Enlace
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...
3
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 ...
4
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 ...
5
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 ...
6
artículo
Publicado 2021
Enlace
Enlace
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...
7
artículo
Publicado 2024
Enlace
Enlace
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...
8
artículo
Publicado 2006
Enlace
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).
9
revisión
Publicado 2017
Enlace
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...
10
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...
11
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...
12
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...
13
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...
14
artículo
Publicado 2021
Enlace
Enlace
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 ...
15
artículo
Publicado 2022
Enlace
Enlace
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...
16
artículo
Publicado 2017
Enlace
Enlace
This paper seeks to describe and analyze the role of professionals in the field of education as one of the main agents who contribute to the socio-labor inclusion of youth with Intellectual Functional Diversity (IFD). Based on the complementarity of the quantitative and qualitative methods, we have delved into the significance of providing quality training to advisors and faculty, one which will enable them to foster the development of personal, social and labor skills and competencies in youth with IFD, so they can access employment and adulthood in an easier manner. Additionally, we have highlighted the significance of training these professionals in innovative methodologies to respond to their students’ diversity and promote the transferability of their learning to new contexts. To conclude, we have been aware of these professionals’ great commitment despite the lack of sufficien...
17
artículo
Publicado 2017
Enlace
Enlace
This paper seeks to describe and analyze the role of professionals in the field of education as one of the main agents who contribute to the socio-labor inclusion of youth with Intellectual Functional Diversity (IFD). Based on the complementarity of the quantitative and qualitative methods, we have delved into the significance of providing quality training to advisors and faculty, one which will enable them to foster the development of personal, social and labor skills and competencies in youth with IFD, so they can access employment and adulthood in an easier manner. Additionally, we have highlighted the significance of training these professionals in innovative methodologies to respond to their students’ diversity and promote the transferability of their learning to new contexts. To conclude, we have been aware of these professionals’ great commitment despite the lack of sufficien...
18
artículo
Publicado 2017
Enlace
Enlace
This paper seeks to describe and analyze the role of professionals in the field of education as one of the main agents who contribute to the socio-labor inclusion of youth with Intellectual Functional Diversity (IFD). Based on the complementarity of the quantitative and qualitative methods, we have delved into the significance of providing quality training to advisors and faculty, one which will enable them to foster the development of personal, social and labor skills and competencies in youth with IFD, so they can access employment and adulthood in an easier manner. Additionally, we have highlighted the significance of training these professionals in innovative methodologies to respond to their students’ diversity and promote the transferability of their learning to new contexts. To conclude, we have been aware of these professionals’ great commitment despite the lack of sufficien...
19
artículo
Publicado 2022
Enlace
Enlace
This study shows the results of the Differential Item Functioning (DIF) detection analysis of the items of the Ser Bachiller assessment of the Costa cycle, which was applied in 2020 to high school graduates and applicants to public universities in Ecuador. The Mantel-Haenszel method, a well-known method used by the Educational Testing Service, was used. The presence of DIF was explored based on four axes of analysis: sex of the subject, area of settlement, ethnic self-identification group and type of schooling. It is concluded that the items of the Ser bachiller Costa 2020 are not affected by differential functioning. This supports the hypothesis that the test items applied by Ineval do not favor or disadvantage certain specific population groups, so the different population groups evaluated are not affected in any way by the design of the Ser Bachiller assessment.
20
artículo
Publicado 2025
Enlace
Enlace
The relationship between executive functions (EF), creative personality, and academic performance in Argentine university students was examined. A total of 248 students (M = 22.97 years, SD = 4.43) from various Argentine provinces participated. The Adult Executive Functioning Inventory (ADEXI), the Cognitive Flexibility Scale, the Creative Behavior Scale (ECC), and the Creative Personality Scale (EPC) were used, along with academic performance data and sociodemographic information. Data were collected online through Google Forms and analyzed using Spearman correlations and mediation analysis with robust Maximum Likelihood estimator and Bootstrap. Cognitive flexibility exhibited the most robust correlation with grade point average (r = .281, p < .001), followed by working memory difficulties (r = -.234, p < .001). Creative personality correlated positively with grade point average (...
