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https://purl.org/pe-repo/ocde/ford#5.01.00
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https://purl.org/pe-repo/ocde/ford#6.04.08
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https://purl.org/pe-repo/ocde/ford#5.02.04
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https://purl.org/pe-repo/ocde/ford#2.01.01
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https://purl.org/pe-repo/ocde/ford#3.02.10
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https://purl.org/pe-repo/ocde/ford#3.03.03
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Automatización y Sistemas de Control
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1
artículo
An infant stimulation in mother-child relationship assessment scale (ISA Scale) was developed, based on a classification of probable effects on child's behavior, such as behavioral promotion stimulation (BPS) and behavioral control stimulation (BCS), refering to mother action level to promote desirable behaviors and to control socially non desirable behaviors in child's behavior repertory. 540 mother-child dyads were evaluated. The construct validity tests showed significant correlations in item analysis, between subescales along with child development measures (social maturity and aggressiveness). In addition significant correlations (p<.05) were identified in validity tests showing criteria. On the other hand, the reliability tests indicated high stability and internal consistency. During this work we verified the important influence this stimulation had on the psychological develop...
2
artículo
Publicado 2010
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Antes de haberse formalizado el concepto del Análisis Multiresolución (AMR), la construcción de bases orto normales de ondículas debió ser demasiado dificultoso. Por ello, el estudio del AM R adquiere importancia y por consiguiente la construcción de Ondículas se hace viable. En la construcción de una ondicula Ψ, debemos determinar una función escala Φ, para luego construir su Análisis Multiresolución asociado; en seguida se pasa a construir Ψ, con propiedades deseadas para las aplicaciones.
3
artículo
Publicado 2010
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Before the concept has been formalized Analysis Multiresolution AMR, base construction orthonormal wavelet should be too difficult. For Therefore, the study of AM R becomes important and therefore construction of Wavelets is viable. In the construction of a wavelet Ψ, we determine a scale function Φ, then build your Analysis Associated multiresolution; soon passed has built Ψ with desired properties for applications.
4
artículo
Publicado 2023
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The objective of the research was to demonstrate that evidence-based learning as a didactic strategy influences the production of functional texts in university students. For this, the following methodology was used: quantitative approach, experimental level, quasi-experimental design. For data collection, the observation and survey technique was used: the instrument used was the rubric —differential semantic scale—, and knowledge test —measures the intellectual part—. To express the data, visual representations, tables and figures were used, obtained through the SPSS v.26 software. The statistical results allowed us to test the hypothesis through the Mann-Whitney U, indicating that the experimental group presents a better result in relation to the control group. In conclusion, evidence-based learning is an advantage for the development of the production of functional texts.
5
artículo
Publicado 2025
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Objective: The objective of this study was to demonstrate whether a gel formulation developed with collagen extracted from fish scales is stable, functional, and safe for cosmetic applications. Material and Methods: A gel formulation derived from fish scales was developed, and physicochemical parameters (pH, viscosity, protein, lipid, carbohydrate, ash, and moisture content) were analyzed following AOAC (Association of Official Analytical Chemists) methods. Additionally, microbiological aspects (mesophilic bacteria, coliforms, molds, yeasts, and Salmonella spp.) were evaluated, and a sensory test was conducted with consumers. Results: The results showed a pH of 6.8 and a viscosity of 150 cP, which are suitable for stability. Protein content was 25%, carbohydrates reached 60.2%, and lipids were 5.5%. No Salmonella spp. was detected, and other microbiological parameters remained within per...
6
artículo
Publicado 2024
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This study investigated consumers' perceptions of adding bee pollen to bread. An attitude questionnaire composed of 48 statements related to "general health," "light products," "natural products," "salty products," "food as a reward," "pleasure," and "food neophobia" was answered by the participants, who indicated their level of agreement with each statement according to a 5-point Likert scale, ranging from (1) "totally disagree" to (5) "totally agree." A check-all-that-apply (CATA) questionnaire was also employed to characterize 12 visual stimuli. The creation of stimuli was carried out using a factorial design, resulting in 12 images of bread. Three clusters of consumers were identified, each associating positive attributes with stimuli containing bee pollen, regardless of the health claim, while negative attributes were associated with stimuli without added pollen. The main positive d...
7
artículo
Publicado 2024
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This study investigated consumers' perceptions of adding bee pollen to bread. An attitude questionnaire composed of 48 statements related to "general health," "light products," "natural products," "salty products," "food as a reward," "pleasure," and "food neophobia" was answered by the participants, who indicated their level of agreement with each statement according to a 5-point Likert scale, ranging from (1) "totally disagree" to (5) "totally agree." A check-all-that-apply (CATA) questionnaire was also employed to characterize 12 visual stimuli. The creation of stimuli was carried out using a factorial design, resulting in 12 images of bread. Three clusters of consumers were identified, each associating positive attributes with stimuli containing bee pollen, regardless of the health claim, while negative attributes were associated with stimuli without added pollen. The main positive d...
8
artículo
Publicado 2024
Enlace
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This study investigated consumers' perceptions of adding bee pollen to bread. An attitude questionnaire composed of 48 statements related to "general health," "light products," "natural products," "salty products," "food as a reward," "pleasure," and "food neophobia" was answered by the participants, who indicated their level of agreement with each statement according to a 5-point Likert scale, ranging from (1) "totally disagree" to (5) "totally agree." A check-all-that-apply (CATA) questionnaire was also employed to characterize 12 visual stimuli. The creation of stimuli was carried out using a factorial design, resulting in 12 images of bread. Three clusters of consumers were identified, each associating positive attributes with stimuli containing bee pollen, regardless of the health claim, while negative attributes were associated with stimuli without added pollen. The main positive d...
9
artículo
Publicado 2024
Enlace
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Objective: To validate an explanatory model of cognitive functioning in older adults, based on inhibitory control, working memory and processing speed. Method: Explanatory-correlational design. 128 people between 60 and 85 years of age were evaluated with working memory and processing speed tests of the WAIS-IV intelligence scale, Stroop Test and Neuropsi. Results: Two models of structural equation analysis were applied. In model 1, with the total sample, inhibitory control better explains the cognitive functioning in adults aged 60 to 85 years (β=0.22; p<0.538). Model 2, which included age as a control variable, divided the sample into two age groups, and found that processing speed best predicted cognitive functioning in adults aged 60-70 years (β=2.329; p=0.030). but no variable predicted cognitive functioning in adults aged 71 to 85 years. The second model showed better fitting ...
10
artículo
Publicado 2024
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This study aimed to evaluate the psychometric properties of the Grief Impairment Scale (GIS) using a network psychometric model. A total of 1048 individuals from Peru and El Salvador participated. A network psychometric model was used to determine internal structure, reliability, and cross-country invariance. The results indicate that the GIS items were grouped into a single network structure through Exploratory Graph Analysis. Reliability was estimated by structural consistency, and it was found that when replicating the network structure within an empirical dimension, a single network structure was consistently obtained, and all items remained stable. Furthermore, the network structure was invariant, thus functioning similarly across the different country groups. In conclusion, the GIS presented solid psychometric evidence of validity based on its internal structure, reliability, and c...
11
artículo
Publicado 2010
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El objetivo de este trabajo es analizar brevemente, algunas estrategias que han sido desarrolladas para la construcción del polinomio trigonométrico m0 bajo ciertas condiciones. Asimismo, mostraremos la relación que existe entre la función escala ϕ, la Ondícula ψ y el polinomio trigonométrico m0. Por ello, el Análisis Multiresolución (AMR) juega un rol vital para la construcción de bases ortonormales de Ondículas. Dentro de las nuevas técnicas usadas, una de las más importantes es la teoría de Frames que tiene una relación directa con el análisisde Ondículas.
12
artículo
Publicado 2010
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The aim of this paper is to briefly discuss some strategies that have been developed for the construction of trigonometric polynomial m0 under certain conditions. Also show the relationship between the function scale ϕ, the wavelet and the trigonometric polynomial m0. Therefore, the Multiresolution Analysis (AMR) plays a vital role in the construction of orthonormal bases of wavelets. Among the new techniques used, one of the most important is the theory of frames that have a direct relationship with the wavelets analysis.
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tesis de grado
Over the time, the development of the digital design has increased dramatically and nowadays many different circuits and systems are designed for multiple purposes in short time lapses. However, this development has not been based only in the enhancement of the design tools, but also in the improvement of the verification tools, due to the outstanding role of the verification process that certifies the adequate performance and the fulfillment of the requirements. In the verification industry, robust methodologies such as the Universal Verification Methodology (UVM) are used, an example of this is [1], but they have not been implemented yet in countries such as Peru and they seem inconvenient for educational purposes. This research propose an alternative methodology for the verification process of designs at the industry scale with a modular structure that contributes to the development o...
14
tesis de grado
Over the time, the development of the digital design has increased dramatically and nowadays many different circuits and systems are designed for multiple purposes in short time lapses. However, this development has not been based only in the enhancement of the design tools, but also in the improvement of the verification tools, due to the outstanding role of the verification process that certifies the adequate performance and the fulfillment of the requirements. In the verification industry, robust methodologies such as the Universal Verification Methodology (UVM) are used, an example of this is [1], but they have not been implemented yet in countries such as Peru and they seem inconvenient for educational purposes. This research propose an alternative methodology for the verification process of designs at the industry scale with a modular structure that contributes to the development o...
15
artículo
Publicado 2025
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The purpose of this study was to translate the Bedtime Procrastination Scale (BPS) into Spanish and to evaluate its psychometric properties. A sample of 419 students from three Peruvian universities participated in the study. Confirmatory factor analysis was conducted to evaluate the original model of the scale, which initially showed poor fit indices. Improved fit indices were obtained after removing reverse-scored item, χ²(5) = 9.240, CFI = .998, RMSEA = .045, TLI = .997, and SRMR = .013. The internal consistency of the scale, examined using the omega coefficient, was found to be satisfactory (ω = .86). Moreover, measurement invariance analysis supported gender invariance, indicating that the scale functions equivalently across male and female participants. Additionally, convergent validity was assessed by examining the correlations between the BPS and insomnia, as measured by the A...
16
artículo
Background: Insomnia can harm daily functioning and is strongly associated with depression and anxiety symptoms, especially in women. El Salvador has no scales with adequate psychometric properties for their measurement. In this context, the Athens Insomnia Scale (AIS) is a viable option to measure this symptomatology, given its short length of time, solid theoretical foundation, and relevance in other countries. Objective: To analyze the psychometric properties of AIS in the Salvadoran population, in its complete (AIS-8) and abbreviated (AIS-5) versions. Method: The study consisted of 1479 Salvadoran adults from the 14 departments of the country (mean age = 33.3 years, SD = 11.7) who were screened through a non-probability sampling design. Evidence of reliability, validity based on internal structure, and convergent validity were examined. Results: Both scales showed adequate internal c...
17
artículo
Publicado 2014
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The aim of this study was to validate the Brandes´s Organizational Cynicism Scale in orderto use it with Argentinean workers. Functional equivalence of the instrument was analyzed. The adapted version was administered to a sample of 396 workers; who also answered a selection of instruments to explore organizational trust, organizational commitment and job satisfaction. Exploratory factor analysis showed a three-factor structure that explained 68.8% of the total variance. Confirmatory factor analysis led to re-specification of the model, eliminating three items. Construct validity was demonstrated on the basis of correlationanalysis. Instrument reliability reached satisfactory levels. Weaknesses and strengths of theresearch are pointed out. A new agenda for future research is suggested.
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objeto de conferencia
The work has been partly funded by the European Union Horizon 2020 research and innovation program under grant agreement No. 761745, the Government of Taiwan and by Cienciactiva-CONCYTEC of the Peruvian government
19
artículo
Publicado 2021
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Virtual social networks have had a notable impact on our lives, and over the years it has led to the creation of new virtual socialization platforms such as Instagram, which in our context has taken great interest, especially in adults young people, occupying a large part of their personal, academic, work and social space, often leading to problematic behaviors such as addiction. The objective of this study was to design and validate the Bergen Instagram Addiction Scale (BIAS), based on the short Spanish version of the Bergen Facebook Addiction Scale (BFAS). 200 Peruvian adult Instagram users from 18 to 35 years old participated (M age = 25.9; SD age = 4.29), 63.5% were women. For the design, the terminology was changed from Facebook to Instagram, in the items of the BFAS, later the AFC was carried out to estimate the evidence of factorial validity and AFC-MG for the invariance of the me...
20
artículo
Publicado 2023
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The purpose of this instrumental design study was to analyze the psychometric evidence of the Multidimensional Scale of Perceived Social Support (MSPSS) for its application in university students in Metropolitan Lima. A total of 520 students participated, 292 women (56%) and 228 men (44%), between 18 and 61 years of age (M = 24.89, SD = 5.17). The confirmatory factor analysis showed acceptable values for the bifactor model: χ2/gl = 4.645, CFI = .99, TLI = .98, SRMR = .027, RMSEA = .084 (90% C.I., .072, .096) and WRMR = .99. Additionally, a value of H = .945, PUC = .727, ECV = .695 and the ωH = .85 were obtained for the general factor. Convergent validity was examined with the General Self-Efficacy Scale (GSES) (r = .50; r2 = .25) and divergent validity with the Test Anxiety Inventory-State (TAI-State) (r = -.32; r2 = .10). In addition, reliability was determined through the ordinal ome...
