Background: The purpose of this review is to determine the association between the risk of preterm birth and low birth weight in newborns and periodontal disease in pregnant women. Methods: A bibliographic search was carried out until November 2021 in the following biomedical databases: PubMed/Medline, Cochrane Library, Scopus, EMBASE, Web of Science, Scielo, LILACS and Google Scholar. Studies reporting the association between the risk of preterm birth and low birth weight in newborns with periodontal disease in pregnant women, which were systematic reviews, in English and without time limits were included. AMSTAR-2 was used to assess the risk of the included studies, and the GRADEPro GDT tool was used to assess the quality of the evidence and the strength of the recommendation of the results. Results: The preliminary search yielded a total of 161 articles, discarding those that did not meet the selection criteria, leaving only 15 articles. Seven articles were entered into a meta-analysis, and it was found that there is an association between the risk of preterm birth and low birth weight in newborns with periodontal disease in pregnant women. Conclusions: There is an association between the risk of preterm birth and low birth weight in newborns with periodontal disease in pregnant women.

Objective: To describe the association of the four main areas of the entrepreneurs' business model with the Business Model Canvas from a systems approach.Methods: Quantitative approach, non-experimental design with descriptive and correlational scope; the sample consisted of 181 entrepreneurs; the instrument used was the questionnaire.Results: The chi-square test showed that there are dependency relationships between the four business areas and the Business Model Canvas (BMC); in addition, there is a positive and significant association between (1) customer interface and the BMC (0.609); (2) product and BMC (0.540); (3) infrastructure management and BMC (0.671) and (4) financial aspects and BMC (0.658). Therefore, the study showed that the four main areas of the entrepreneurs' business model are significantly associated with the nine modules of the Business Model Canvas.Conclusion: Despite the positive and significant association of the areas with the BMC, micro and small business entrepreneurs should seek greater positioning in the market, strengthen their value proposition to be competitive in the market, greater resource planning and key partners, and finally, train and be part of financial inclusion and education.

Background Private universities in Peru still need to implement digital transformation models to enhance the job performance of faculty and staff, achieving consistent improvement in the performance levels of university teachers by deploying technological and didactic tools for students. Therefore, the study aims to determine the relationship between digital transformation and the job performance of employees at a Private University. Methods The research approach was quantitative, employing a non-experimental, longitudinal correlational design. The technique used was a survey, applied to a sample of 104 employees (school heads, faculty, and a director) from the university on a national level from a total population of 144. Results Descriptive results reveal that the university has regularly adopted tools related to digital transformation. In particular, it has efficiently employed agile technologies, Big Data, and various technological means, benefiting 90% (52% and 38%) of the staff. The study also showed a high positive correlation (0.92>0.7) between digital transformation and the job performance of staff at the Private University, confirming that there is a significant connection between the variables studied. Conclusions Therefore, creating an innovative culture across all hierarchical levels and identifying key technologies that add value to the learning flow can meet the needs of an increasingly demanding society.

The use of information technology and communications, have allowed the development of multiple devices for recording electrical activities that originate in the human body such as electrocardiogram, electromyography, electroencephalography signals, among others; They have also allowed the commercialization of low-cost devices that can be used for sophisticated Virtual Reality applications. In the process of recovering the mobility of the lower limbs, important problems arise, such as being able to recover muscular capacity, coordination of gait and mainly the loss of fear of being able to walk normally, which is why one of the Exercises to work these three problems is to perform the exercises on an exercise bike, in these conditions the patient performs it in most cases very distracted, which causes him not to perform the exercise normally, this article presents a technique to evaluate the cerebral conditions of the patient who is in recovery, based on the analysis of the attention and meditation novels, measured when the patient performs the exercises using the stationary bicycle, using the virtual reality device based on the use of the lenses of RV, brain signal measurements are made using the MindWave EEG device Neurosky, which gives us the level of concentration and meditation that the person is on a scale of 0% to 100%, the results obtained show that when the person is doing the exercises on the bicycle they find low levels of attention and Opposite meditation happens when the patient is using the virtual reality device where you show high levels of meditation.

Background At the international level, the survival of exporting companies represents a critical issue in a context of heightened uncertainty and intensified competition within the framework of the country’s commercial opening. This is a context in which different companies are born and die as a result of the interaction between the market and other factors. The objective of this research was to analysis of the survival of exporting agricultural companies in Peru, 2009-2019. To this end, data from the Commission for the Promotion of Peru for Exports and Tourism (Promperu) was utilised. Methods The methodological contribution of the research is based on the quantitative approach, of basic type with a descriptive elk; being the population that involves a total of data of the agricultural exporting companies of Peru in the period 2009-2019 and the sample is census and the non-parametric statistical technique used was the Kaplan Meier estimate for the estimation of the survival rate. Results Exports of Peru’s non-traditional agricultural sector in FOB value have had an average annual growth of 12% in terms of FOB value and 9% in terms of volume exported; the entry rate of new agro-exporting agricultural companies reached an average growth of 2.3% and the exit rate reached an average of 2.2% in the period 2009-2019. Conclusions The survival of exporting companies in the non-traditional agricultural sector is critical, where 89% of them survive only one year, while in the second year only 75% survive and in the sixth year only 33% survive.

Background The population is increasingly demanding a better quality of life in their territories, which requires better urban planning. This study aims to find out the effectiveness of urban planning implemented by local governments on citizen satisfaction. Method A systematic literature review was conducted exploring the evolution of the state-of-the-art databases in Scopus, WOS and Dimensions, involving a relevant selection of empirical studies on the effectiveness of urban planning on citizen satisfaction, using quality criteria and the application of the PRISMA diagram. Results The findings in the various empirical contributions find converging in three main blocks the contributions related to: (i) Urban planning as a catalyst for the impact of citizen satisfaction, given that using the planning tool will lead to the development of local policies based on the Neoliberalism approach for smart urban development; (ii) Theoretical contributions for urban planning that contextualises a modernist planning based on a multidimensional aspect to address quality of life for modern well-being and (iii) Smart planning for citizen satisfaction for the design and implementation of public governance reforms aimed at optimising urban planning management at the local level for smart urban city development. Conclusion There is strong theoretical and empirical support that is closely linked to sustainable development, happiness, public space, urban growth, urban areas, satisfied customers and urban residents. Future research should examine the relative weight of urban planning dimensions and effectiveness in the sustainable development of territories and citizen satisfaction.