Examinando por Materia "Spores"

Mostrando 1 - 4 de 4

Acceso abierto
Efficacy of the steam sterilization method in surgical instruments for the elimination of bacteria and spores
(Universidad Privada Norbert Wiener, 2019-09-01) Chia Acevedo, Silvia Rosa; Calsin Pacompia, Wilmer
Objective To analyze the evidence on the effectiveness of the steam sterilization method on surgical instruments for the elimination of bacteria and spores. Materials and methods: The type of study was quantitative, the design was a systematic observational and retrospective review. The population was 34 studies and the sample was 10 studies. Instrument is the registry database search. The GRADE Method has been used to assign the strength of recommendation and the quality of evidence to place the most important results using the grade system to assign the strength of recommendation.
Acceso abierto
Efficiency of biological indicators in the quality of sterilization of surgical medical material
(Universidad Privada Norbert Wiener, 1905-07-09) Paiva Vite, Rosa Isabel; Poma Morales, Erika Karina; Mendigure Fernández, Julio
Objective: Determine the effectiveness of the use of biological indicators in the quality of sterilization of surgical medical material. Material and methods: Systematic Reviews are an observational and retrospective research design, which synthesizes the results of multiple primary investigations. Results Biological indicators serve to verify the effectiveness of the sterilization process and guarantee that a material is sterile. They consist of standardized preparations of spores of very resistant microorganisms, which are processed in the sterilizer to check whether or not they have been destroyed and, therefore, whether or not the sterilization process has been carried out. Conclusions: Biological indicators are effective and the only means available to confirm the sterilization of an article.
Acceso abierto
Evaluation of a colorimetric method for the detection of residual antimicrobial activity in urine cultures of the National Teaching Hospital Mother Child San Bartolomé, Lima 2023
(Universidad Privada Norbert Wiener, 2023-11-09) Julcarima Briceño, Jhonny Josmell; Astete Medrano, Delia Jessica
Experimental Study: The aim was to determine the antimicrobial activity in urine samples analyzed for uroculture using a colorimetric method. 1,014 urine samples were analyzed to detect residual antimicrobial activity with Bacillus subtilis ATCC 6633 spores as the indicator strain. Results from the colorimetric method showed a frequency of 11.4% in detecting residual antimicrobial activity, with a sensitivity of 97.5%, specificity of 100%, a negative predictive value of 99.6%, and a positive predictive value of 100%. The interpretation time was 66 (6.5%) samples in 2 hours and 50 (4.9%) samples in 4 hours. Conclusion: The colorimetric method showed excellent efficacy based on its sensitivity, specificity, interpretation time, and predictive values, aligning with the disk diffusion method.
Acceso abierto
Utility of transparent adhesive tape on various surfaces as a Forensic Palynological Method
(Universidad Privada Norbert Wiener, 1905-07-09) Huanachin Huayascachi, Carmen Rosa; Santos Cuyutupac, Haydee del Pilar; Ascarza Gallegos, Justo Angelo
The objective was to demonstrate the usefulness of transparent adhesive tape on various surfaces as a forensic palynological methodology. Our thesis work is focused on contributing to the resolution of criminal cases effectively and feasibly, using assistive procedures applied to the forensic field. The results of the tests where transparent adhesive tape was applied showed positive microscopic visualization of pollen on different types of surfaces. Using the SPSS version 15 statistical software, the comparison of the variables was performed using the Chi-square test. The conclusion of our thesis is that transparent adhesive tape is useful as a forensic palynological methodology with a sensitivity of 84.17%.