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Copyright of Revista Facultad de Ciencias Economicas: Investigacion y Reflexion is the property of Revista Facultad de Ciencias Economicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The present study focused on the proposal of a technological solution that would contribute to the improvement of the verification system of the exact charge of the batteries of the laser kit, the calibration and charging of the suppliers of the guns that work with CO2 and the organization of the components that allow the operation of the gun of the shooting simulator of the training center of the National Police of Colombia. In this sense, within the framework of adaptive research, following the guidelines established by the Design Thinking methodology for innovation, the development of a functional electronic prototype was carried out, which enables the validation of the exact voltage of laser kit batteries for Sig Sauer SP2022 type pistols and multiple suppliers automatic recharging with CO2, for shooting simulators in an automatic and safe way in handling, which also unifies the location of the pistol components in a single easily accessible space, managing to contribute this way both in the reduction of expenses in raw materials, as in the reduction of environmental pollution. [ABSTRACT FROM AUTHOR]

Copyright of Ingeniería Agrícola y Biosistemas is the property of Universidad Autonoma Chapingo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Chapingo Serie Ciencias Forestales is the property of Universidad Autonoma Chapingo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aims: Development and validation of the contents of a checklist to evaluate the qualification of health professionals in septic patient care with clinical simulation. Method: instrument validation study, with two-stage structural design: instrument construction and validation of the checklist contents using the Delphi technique in two rounds. Results: The content validation was composed of ten items and forty-three sub-items analyzed by the evaluators. Through the Content Validity Index, four items with strong validation evidence were identified, Content Validity Index = 0.8. We restructured the checklist according to the evaluators recommendations, maintaining the ten items, but reducing them to twenty-six sub-items, which in the second round Delphi presented a percentage of agreement above 80% for all variables relevant to the instrument. Conclusion: This method was effective to validate the checklist contents that will evaluate the qualification of health professionals in septic patient care, through clinical simulation. [ABSTRACT FROM AUTHOR]

Copyright of Ingeniería Agrícola y Biosistemas is the property of Universidad Autonoma Chapingo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The statistical multivariate analysis of Likert response scales, given their widespread use, is a controversial issue in the scientific community, mainly from the specification of the problem of measurement. This work aims to study various conditions of these ordinal scales affect the calculation of the product-moment and tetrachoric-polychoric correlation coefficients. For this purpose, a simulation study was applied in which 90 databases with 10 items each were generated. In the estimation of the databases, the following variables were controlled: number of response categories, symmetrical or asymmetric distributions of data, sample size and level of relationship between items. Thus, 90 matrices (10x10) were obtained which included the difference between the product-moment and tetrachoric-polychoric correlations. The graphical and variance analysis show how the product-moment correlation coefficient significantly underestimates the relationship between variables mainly when the number of response categories of the ordinal scale is small and the relationship between the variables is large. On the other hand, the statistical estimation of both coefficients is very similar when the starting relationship between pairs of variables is small and/or when the number of response options of the variables is greater than 5. The study concludes by making a recommendation to the applied researcher on the most appropriate correlation coefficient depending on the type of data available. Finally, the results are discussed from the previous studies, which reach some similar conclusions. [ABSTRACT FROM AUTHOR]