Tópicos Sugeridos dentro de su búsqueda.
Tópicos Sugeridos dentro de su búsqueda.
Buscar alternativas:
comparative based » comparative case (Expander búsqueda), comparativo basado (Expander búsqueda), comparative mixed (Expander búsqueda)
comparative based » comparative case (Expander búsqueda), comparativo basado (Expander búsqueda), comparative mixed (Expander búsqueda)
1
artículo
Publicado 2022
Enlace
Enlace
This research aimed to compare the internalizing (anxiety and depression) and externalizing (hyperactivity) symptoms of Caraquenian children based on the level of food insecurity reported by their parents. A simple retrospective design was proposed with a sample of 200 children, aged between eight and twelve, and their representatives, in charge of reporting the food insecurity levels in their homes and the symptoms of perceived hyperactivity in their children. For the analysis of results, the non-parametric Mann-Whitney´s U technique was used to compare anxiety, depressive and hyperactive symptoms based on high and low levels of food insecurity. Results suggest moderate conditions of food insecurity in the households. Furthermore, regarding the set of internalizing symptoms evaluated, it was found that households with greater food insecurity tend to have children with greater manifesta...
2
artículo
Publicado 2022
Enlace
Enlace
This research aimed to compare the internalizing (anxiety and depression) and externalizing (hyperactivity) symptoms of Caraquenian children based on the level of food insecurity reported by their parents. A simple retrospective design was proposed with a sample of 200 children, aged between eight and twelve, and their representatives, in charge of reporting the food insecurity levels in their homes and the symptoms of perceived hyperactivity in their children. For the analysis of results, the non-parametric Mann-Whitney´s U technique was used to compare anxiety, depressive and hyperactive symptoms based on high and low levels of food insecurity. Results suggest moderate conditions of food insecurity in the households. Furthermore, regarding the set of internalizing symptoms evaluated, it was found that households with greater food insecurity tend to have children with greater manifesta...
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
artículo
Publicado 2018
Enlace
Enlace
This work presents us with a brief –though by no means plain– overview of the foundations, presuppositions, possibilities and limitations and some concrete examples of what comparative legal survey gives to the field of Constitutional Law.Indicating the capability of comparative legal practice together with a distinct comparative theoretical study of constitutional matters, giving pertinent methodological observations, the Bolognian professor excels at giving the reader acute observations on the nature of the legal comparison, the definition of its scope, the grounds for something to be “comparable”, as well as other interesting topics.An experienced jurist, de Vergottini also underlines the diff erent functions of the various actors in the legal sphere, the role they play by using comparative legal analysis in their work and the practices of foundation and argumen...
6
artículo
One of the problems in the care of coronary patients is accurately assessing the functional state of the myocardium. Contributions from Master ( 25, 26) , using the Test of electrocardiographic Effort constitute itself a doctrinal issue in evaluating the state of coronary sufficiency. However, results based seudonegativos Scherf and Schaffer ( 33 ) can be found in 20% , and even the same Master considered by over 50 % . Recent research by Simonson (34, 35, 36 ), reviews the impact should be taken into account also in seudopositivos results. Be remembered that if a Stress Test is negative , is no guarantee for exempting imminent post coronary insufficiency ( 12). With the introduction of Practice Ballistocardiography by Dock system (10 ) , ( 11) , it is possible to insist on this method to find out the exact behavior of the myocardium in patients with coronary disease.
7
artículo
El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.
8
artículo
Publicado 2020
Enlace
Enlace
Introduction: One of the most important functions of municipalities as a public institution is to provide, maintain and promote the health of citizens. To improve the health of the community, we need to understand the function of the municipality in countries that affect the health and well-being of the population. Material and methods: This study is a comparative-descriptive study. After searching for databases and authoritative sources and documents, related research was introduced into the study. Considering the performance of municipalities in the provision of health services, 7 countries were selected as statistical samples. Finally, the comparative attitudes of selected countries based on the role of municipalities in providing health services, macroeconomic indicators and health economics were tabulated, compared and compared. Results: The municipalities of the selected countries ...
9
artículo
Publicado 2021
Enlace
Enlace
This paper addresses a particular scenario of the classic tension between constitutionalism and democracy, one that poses the existence of material limits to the power of constitutional reform. The subject undoubtedly raises a series of perplexities around some aspects such as the legal nature of the constitutional reform power. The essay analizes the defense of implicit material limits when the constitutional text has not explicitly recognized them, the competence and legitimacy of the courts, the normative parameter in merit to which this control would be carried out, among others. In this context, this article proposes to provide an analysis of these issues based on comparative law, exposing the cases of Germany, the United States and Colombia, countries that have provided different answers to the issue of material limits in function of their own constitutional texts and systems, and ...
10
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 ...
11
artículo
Publicado 2015
Enlace
Enlace
This investigation led proposes the articulation, in a conception as a whole, of a new theoretical model based on the stablishment of three functions of Public Relations that should be present in public and private organizations, that are, the relational function, the communicational function and the synergy function. This is an exploratory study, non-experimental, descriptive, comparative, and from an intracultural mode that took a sample of twenty executive officers of Public Relations and related, from public and private organizations in Peru. Among the main results it was found a high level of management in human relations in private organizations in Lima, but a low level in other cities of the country. These high and low levels were found in the management of the public controversy in organizations of Lima and provinces, respectively. Likewise, a high level of the subfunction unidir...
12
artículo
Publicado 2015
Enlace
Enlace
This investigation led proposes the articulation, in a conception as a whole, of a new theoretical model based on the stablishment of three functions of Public Relations that should be present in public and private organizations, that are, the relational function, the communicational function and the synergy function. This is an exploratory study, non-experimental, descriptive, comparative, and from an intracultural mode that took a sample of twenty executive officers of Public Relations and related, from public and private organizations in Peru. Among the main results it was found a high level of management in human relations in private organizations in Lima, but a low level in other cities of the country. These high and low levels were found in the management of the public controversy in organizations of Lima and provinces, respectively. Likewise, a high level of the subfunction unidir...
13
tesis de grado
Publicado 2025
Enlace
Enlace
Polyethylene terephthalate (PET) is a widely used material in container manufacturing, particularly in bottle production. It is characterized by its low cost and widespread availability. However, its improper disposal has significantly exacerbated global plastic pollution. For instance, less than 50% of plastic bottles are recycled. Moreover, studies indicate that this issue has led to a significant accumulation of plastic waste in the oceans, which continues to grow annually and could be considered floating islands of debris. This study proposes replacing PET with polylactic acid (PLA), a biodegradable and biocompatible polymer with suitable properties for bottle production. PLA also has a shorter decomposition time compared to PET, contributing to the reduction of carbon footprint and greenhouse gas emissions. The research methodology included a diagnostic phase to define objectives, i...
14
artículo
Publicado 2021
Enlace
Enlace
Objective: To compare the professional performance of the health establishments with essential obstetric and neonatal functions from Lima with respect provincie during September-October of 2015. Materials and methods: It´s a cross- sectional analytical investigation conducted in 350 health establishments with essential obstetric-neonatal functions I-II (FONE I-II) database based on national surveys conducted by the National Institute of Statistics and Informatics (INEI) during 2015. New variables were created from the databases to determinate the gynecology staff´s professional performance and analyzed the data with the R statistical software and the IBM SPSS Statistics 25 using the chi-square test. Results: The investigation showed that midwifes were the healthl staff who most frequently attended vaginal births, both in Lima (62.9%) and in provinces (91.4%). With respect to the partog...
15
artículo
Publicado 2021
Enlace
Enlace
Objective: To compare the professional performance of the health establishments with essential obstetric and neonatal functions from Lima with respect provincie during September-October of 2015. Materials and methods: It´s a cross- sectional analytical investigation conducted in 350 health establishments with essential obstetric-neonatal functions I-II (FONE I-II) database based on national surveys conducted by the National Institute of Statistics and Informatics (INEI) during 2015. New variables were created from the databases to determinate the gynecology staff´s professional performance and analyzed the data with the R statistical software and the IBM SPSS Statistics 25 using the chi-square test. Results: The investigation showed that midwifes were the healthl staff who most frequently attended vaginal births, both in Lima (62.9%) and in provinces (91.4%). With respect to the partog...
16
artículo
Publicado 2005
Enlace
Enlace
Objective: To ascertain that social and emotional deprivation of the mother is associated with fetal growth restriction, fetal death, preterm birth and congenital defects. Materials and Methods: We retrieved the maternal and perinatal outcome from the Informatic Perinatal System of all pregnancies with antenatal care whose delivery occurred between January 1, 1992 and December 31, 2001. Three groups of patients with social and emotional deprivation were included: 1) single women (n=1285), 2) teenage women with absent prenatal care (APC), (n=2131), and 3) primigravid with stature lower than 160 cm (n=35722). Maternal and perinatal outcome were compared with: 1) women living with sexual partner (n=5550), 2) teenage women with prenatal care (n=7644), and 3) primigravids taller than 159 cm (n=5264). Odds ratio and 95% confidence interval (CI) were calculated. Results: Single women presented ...
17
artículo
Publicado 2020
Enlace
Enlace
The study sought to determine if there are differences in working memory and executive neuropsychological functions in children with different reading levels belonging to different socio-cultural realities. The sample was 71 students from Huancavelica and 82 students from Lima and Callao from the 3rd. And 4 to. Primary grade, all of Public Educational Institutions. It was a comparative descriptive study. First, the reading processes in the Huancavelica and Lima-Callao groups were evaluated with the PROLEC-R (Cuetos, Rodríguez, Ruano and Arribas, 2007), finding significant differences. On that basis, the Working Memory was evaluated, with subtests of the WISC-IV Test (Wechsler Intelligence Test-2006) and the executive neuropsychological functions with some BANFE tests (Flores-Ostrosky, 2012) in both groups. The results showed significant differences in Working Memory in favor of the Lima...
18
artículo
Publicado 2020
Enlace
Enlace
The study sought to determine if there are differences in working memory and executive neuropsychological functions in children with different reading levels belonging to different socio-cultural realities. The sample was 71 students from Huancavelica and 82 students from Lima and Callao from the 3rd. And 4 to. Primary grade, all of Public Educational Institutions. It was a comparative descriptive study. First, the reading processes in the Huancavelica and Lima-Callao groups were evaluated with the PROLEC-R (Cuetos, Rodríguez, Ruano and Arribas, 2007), finding significant differences. On that basis, the Working Memory was evaluated, with subtests of the WISC-IV Test (Wechsler Intelligence Test-2006) and the executive neuropsychological functions with some BANFE tests (Flores-Ostrosky, 2012) in both groups. The results showed significant differences in Working Memory in favor of the Lima...
19
objeto de conferencia
We present the simulation of the application of the Model-based Predictive Control (MPC) of the drum level in a Combined Cycle Plant in order to minimize the time for reaching the highest capacity of plant, around 225 MW. In contrast to others control techniques, our simulation yields that the MPC has shown capabilities as to reach its expected power in about 40 minutes before than PID, time which normally takes the whole industrial process under this control. In the present study, we have tested up to three different reference functions in order to compare performance during the drum level control. According to the simulations, the MPC working together with these reference functions is seen to be promising in the sense of providing efficiency to the plant from the startup until the time when system is reaching 225 MW. We have also calculated a minor discrepancy of order of lees than 5%.
20
