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1
artículo
Publicado 2021
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In Bolivia there is a strong debate about the precision in the estimation of results disseminated by opinion studies on electoral matters, especially in the last general elections of the 2020 administration, essentially the pre-election polls that estimate the percentage of intention to vote of a candidate running for political authority. In this study, it was analyzed how pre-election surveys should be structured mainly in the part of the sample design, on the other hand, the results released by companies authorized to carry out these studies were analyzed, special emphasis was also placed on the margin of error that is a very important element in the dissemination of results. Likewise, the results of the last general elections 2020 were compared. Finally, the standard error of the valid vote for each candidate was estimated with the Boostrap resampling method using the free software R.
2
artículo
After several investigations in Huaca del Sol (Uhle 1915; Hastings and Moseley 1975, Moseley 1975; Pozorski 1979 Narro Gallardo and 1992, Herrera and Ramirez 1992; Herrera and Chauchat 2003), the archaeological project Huacas de Moche (Moche Temples) initiated a research program that began in 2011. In this article, we present the excavations results in section 2 of Huaca del Sol from the systemic approach by Niklas Luhmann, which helped us to conceptualize and define our procedure to the particular demarcated issues. The conclusions, we present, show in first place, a long building autopoietic process, which has defined a three-phase construction sequence (last, penultimate and antepenultimate. The penultimate phase consists of two sub phases, which would indicate a complex building functionality associated at the beginning to domestic-residential activities and then to palace activities...
3
artículo
Publicado 2022
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Objective. To evaluate the sensitivity, specifcity and predictive values of theclinical cytological study of patients with ascites in a national general hospital in Peru. Methods. Patients presenting with clinical manifestations of ascites, biochemical, cytological and histological studies were included. Results. Fifteen patients with ascites were studied. The mean age was 62 years, being 80% female and 20% male. The fnal diagnoses revealed various malignant neoplasms (93.3%) and peritoneal tuberculosis (6.7%). The most frequent clinical manifestation was mild to severe abdominal pain (80%). The cellular components were: red blood cells (73.3%), histiocytes (26.7%), lymphocytes (73.3%), polymorphonuclear cells (40%), mesothelial cells (86.7%) and clusters of epithelioid cells with varying degrees of atypia (80%). Two casesshowed atypical lymphoid cells. The sensitivity and positive predi...
4
artículo
Publicado 2001
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It is analized the psychometric properties of Raven’s Advanced Progressive Matrices. The participants were 501 Freshmen students of 5 professional careers of the Universidad Nacional Mayor de San Marcos (U.N.M.S.M.), a public university located at Lima, Perú. The reliability analysis shows that the test is reliable. Also, the construct validity analysis meets the requirements of test making. The norms were elaborated considering the professional careers of the U.N.M.SM. students. It was find statistical differences on general intelligence scores, showing higher scores students of career “B” than students of “A “, “C “, “D” and “E” careers; also, students from career “C” showed higher scores than students from “A” and “E” career paths; finally, students from professional career“D” have had higher scores than students of “A“ and “E” careers. I...
5
artículo
Publicado 2001
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It is analized the psychometric properties of Raven’s Advanced Progressive Matrices. The participants were 501 Freshmen students of 5 professional careers of the Universidad Nacional Mayor de San Marcos (U.N.M.S.M.), a public university located at Lima, Perú. The reliability analysis shows that the test is reliable. Also, the construct validity analysis meets the requirements of test making. The norms were elaborated considering the professional careers of the U.N.M.SM. students. It was find statistical differences on general intelligence scores, showing higher scores students of career “B” than students of “A “, “C “, “D” and “E” careers; also, students from career “C” showed higher scores than students from “A” and “E” career paths; finally, students from professional career“D” have had higher scores than students of “A“ and “E” careers. I...
6
artículo
Publicado 2020
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The health crisis generated by COVID-19 has changed all our ways of life, including those that are linked to education, going from a teaching presence to a virtual one and that has highlighted the need to advance signicantly in the incorporation of the new technologies in the educational process. In this scenario, the present research aimed to determine the correlations between digital culture and autonomous learning in students of the rst years of a private university in Lima during 2020. For this purpose, a research design was used non-experimental of correlational scope. The study sample was probabilistic and consisted of a total of 352 students, who were administered two assessment instruments: Marina Kriscautzky's digital culture inventory and Mercedes López-Aguado's autonomous learning questionnaire. The statistical results achieved show the existence of signicant and positive cor...
7
artículo
Publicado 2023
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The objective of this research was to demonstrate how the methodology of the English language teacher influences the academic performance of the students of the I semester of the National Service of Training in Industrial Work - SENATI Pisco, with the level in basic English. It is an applied research, of the quasi-experimental type, at an explanatory and transversal level. For this, we worked with a sample of 48 students from 4 sections of General Studies. The instruments that were used were a pre-test, to know their previous knowledge of the four skills in the English language (listening, speaking, writing and reading). After a semester of application, a post test was applied for the 48 students who were in the study, an observation form to register the qualitative information, in the achievement of the competence (knowledge, procedures and attitudes). The results proved that after appl...
8
artículo
Publicado 2021
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This pre-experimental study aimed to analyze the influence of the game of chess and learning in the area of mathematics in university students, thinking about this purpose, the pre and post test was applied to a sample of 40 second-year students from the Professional School of Administration. Faculty of Economic and Financial Accounting Sciences of the San Martin de Porres University, 2019, whose information collected was processed with the SPSS program, which allowed the application of the T Student difference test of means for independent samples. The results explain that the general hypothesis verified the influence of chess on the academic performance of the Mathematics Area, since there is a difference of 1.76 points between the control and experimental groups. In the specific hypotheses, they also confirmed the influence of chess on learning linear equations, the derivative of a fu...
9
artículo
Publicado 2021
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This pre-experimental study aimed to analyze the influence of the game of chess and learning in the area of mathematics in university students, thinking about this purpose, the pre and post test was applied to a sample of 40 second-year students from the Professional School of Administration. Faculty of Economic and Financial Accounting Sciences of the San Martin de Porres University, 2019, whose information collected was processed with the SPSS program, which allowed the application of the T Student difference test of means for independent samples. The results explain that the general hypothesis verified the influence of chess on the academic performance of the Mathematics Area, since there is a difference of 1.76 points between the control and experimental groups. In the specific hypotheses, they also confirmed the influence of chess on learning linear equations, the derivative of a fu...
10
artículo
Publicado 2002
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It was made a psychometric study of Raven Coloured Progressive Matrices Test, which is a non verbal instrument that evaluates abilities related to make comparisons, thinking for analogy and spatial perceptions organization. It was designed mainly as a measure of factor "g" of Spearman or general intelligence, composed by two abilities, named educational and reproductive. The participants were 2496 students obtained at random considering all school districts (USE) of the city of Lima, Peru. They were primary level students, from 1º to 6º grade and 6 to 11 years old. The psychometric analysis shows that the item-test relation is up to norms (>0.20), so reliability was attained. Also the factor analysis of the items comes up whith one factor explainig the 76% of variance, so construct validity was obtained. Also the calification norms was obtained. The analysis of results points out th...
11
tesis de grado
Publicado 2021
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El objetivo principal del estudio es evaluar la viabilidad técnica, económica, financiera y social de la implementación de un centro de fisioterapia y rehabilitación física, dirigida al público en general. El establecimiento de este centro es para las personas con lesiones, lo que contribuirá a mejorar la calidad de vida de los pacientes, además de generar oportunidades de empleo y fomentar más investigaciones sobre nuevas tecnologías para hacer frente a diversos tipos de lesiones y mejorar la calidad de los servicios. En primera instancia, se detallas aspectos generales de la indagación, así como la problemática, los alcances, limitaciones, objetivos, justificación del proyecto, la hipótesis, el marco referencial y conceptual. En el capítulo posterior se lleva a cabo una investigación de mercado para confirmar si la entrada a este, es factible y se realiza un análisis ...
12
artículo
Objective. To determine the relationship between study habits and academic performance in students of English as a second language. Methods. Research with a quantitative approach, observational, descriptive, cross-sectional with a non-experimental and correlational design, for the collection of information on study habits, the inventory of study habits CASM-85 was used and for academic performance data, school records were used. The sample consisted of 208 students between 13 and 23 years old, who were selected through a simple random probabilistic sampling, from a population of 454. Results. There was a very low, positive and direct relationship between study habits and academic performance (Spearmans Rho=0.18; p=0,009), in the case of the relationship between the dimensions of study habits with academic performance, only the dimension dedication to homework was significant (Spearmans R...
13
artículo
Publicado 2024
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The main objective of this study is to assess the relevance of the competency-based approach in teaching practices within technical and vocational education in the Dominican Republic. The focus is on two institutions: the Instituto Técnico Superior Comunitario (ITSC) and the Instituto Nacional de Formación Técnico Profesional (Infotep). The study participants included both students and teaching staff from these institutions. The findings reveal that both ITSC and Infotep are highly regarded across the measured indicators, particularly in the category of pedagogical aspects.
14
artículo
Publicado 2010
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This paper evaluates the performance of process capability indices, PCI in non-normal situations percentiles using the methods of Clements (CCP CCpk) and Burr (BCP BCpk). Although the PCI is used in industry, there is insuffi cient literature to determine their accuracy by taking into account moderate and severe deviations of the normality. To study these deviations, it performs a comparison of both methods considering simulated data distributions with the Weibull, Lognormal, Beta and Generalized Pareto, GP. In calculating the PCI the CCpk generates smaller deviations with the Weibull distribution, whereas that the BCpk, deviations are higher. On the other side with each distribution the BCP generates lower average deviation from the CCP. Finally a real case considering the distribution GP.
15
artículo
Publicado 2010
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This paper evaluates the performance of process capability indices, PCI in non-normal situations percentiles using the methods of Clements (CCP CCpk) and Burr (BCP BCpk). Although the PCI is used in industry, there is insuffi cient literature to determine their accuracy by taking into account moderate and severe deviations of the normality. To study these deviations, it performs a comparison of both methods considering simulated data distributions with the Weibull, Lognormal, Beta and Generalized Pareto, GP. In calculating the PCI the CCpk generates smaller deviations with the Weibull distribution, whereas that the BCpk, deviations are higher. On the other side with each distribution the BCP generates lower average deviation from the CCP. Finally a real case considering the distribution GP.
16
artículo
Publicado 2015
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This paper discusses the main variables, analysis and conclusions of the studies conducted by the Centro de Análisis y Resolución de Conflictos de la Pontificia Universidad Católica del Perú and the Contraloría General de la República from Peru. The author bases its investigation on the comparison between the two organisms; furthermore, he contrasts its conclusions andproposals with the data collected in the development of arbitration.
17
artículo
Publicado 2020
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Cross-sectional studies are epidemiological design which can be considered as descriptive or analytical designs depending on the general objective. This is a quickly and economical design and allows to calculate the prevalence of a condition. Also, the relationship of temporality between the exposition and the outcome is being measured simultaneously on a unique period, not being possible to identify a directionality in the temporality. When there is an analytic objective, the association measure used is the Prevalence Ratio (PR), specially when the prevalence of the outcome is more or equal to 10% or the Odds Ratio (OR) when that prevalence is lower. To quantify this association different regression models like Binomial log or Poisson log can be used, including generalized lineal models. If the association measure is OR, the most common used model is the multiple logistic regression.
18
artículo
Publicado 2022
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Introduction: To improve the quality of care in Pediatric Emergency Services (SEP) it is essential to carry out measurements and surveys. Purpose: Describe the resources and operation of the SEPs of public hospitals in Latin America. Methods: Descriptive, quantitative and retrospective study. Survey conducted in SEP of Latin American hospitals with public funding and with PICU (2019). Data processed by REDcap and InfoStat programs. Continuous variables are presented as medians and ranges; categorical variables as percentages; productivity / resource ratios as a ratio. Univariate analysis was performed. Results: Of 371 services in 17 countries, 107 (28.8%) answered the survey; 102 (95.3%) have an observation area and 42 (39.3%) have isolation rooms. The medians of annual visits / observation bed and daily visits / clinic were 4830.6 and 24.4, respecti...
19
artículo
Publicado 1956
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In this paper a summary of research conducted by the Institute of Biochemistry and Nutrition, Faculty of Medicine of Lima regarding nutritional problems Peru is made. To this end there have been clinical, haematological and biochemical studies to identify deficiency states in groups of individuals from different economic classes, soldiers, adults, children and seniors. Regarding calorie needs an applicable table shows the average weight in relation to age, obtained from national surveys. Protein deficiencies, the solution would be in the highest consumption of fish are detected. Referring to the lack of calcium in the diets is shown that by the constant action of the solar rays properly manage groups examined using the poor contribution. Alkaline phosphatase determinations reveal absence of rickets. A high percentage of anemia in the jungle due to high intestinal parasitism and overall d...
20
artículo
Publicado 2020
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Cross-sectional studies are epidemiological design which can be considered as descriptive or analytical designs depending on the general objective. This is a quickly and economical design and allows to calculate the prevalence of a condition. Also, the relationship of temporality between the exposition and the outcome is being measured simultaneously on a unique period, not being possible to identify a directionality in the temporality. When there is an analytic objective, the association measure used is the Prevalence Ratio (PR), specially when the prevalence of the outcome is more or equal to 10% or the Odds Ratio (OR) when that prevalence is lower. To quantify this association different regression models like Binomial log or Poisson log can be used, including generalized lineal models. If the association measure is OR, the most common used model is the multiple logistic regression.
