Fernando A Crespo | Universidad Alberto Hurtado (original) (raw)

Papers by Fernando A Crespo

Applied Network Science, Nov 29, 2019

Reference Masias VH et al (2019) Detecting social media users based on pedestrian networks and ne... more Reference Masias VH et al (2019) Detecting social media users based on pedestrian networks and neighborhood attributes: an observational study. Appl Netw Sci 4:96.

Observatorio económico, Aug 1, 2022

(descriptivo): Las practicas de crianza delimitan relaciones de influencia que pueden representar... more (descriptivo): Las practicas de crianza delimitan relaciones de influencia que pueden representar un riesgo para el desarrollo de conductas problematicas en los infantes. Se realizo una investigacion que correlaciono las practicas de crianza de familias en una comunidad vulnerable de la ciudad de Barranquilla, con los mecanismos de desconexion moral que emplean sus hijos al afrontar conflictos. Se encontro un nivel favorable en las practicas implementadas por las familias y una baja tendencia de los ninos hacia el uso de la violencia. Se encontraron correlaciones positivas y negativas entre algunas practicas de crianza y casos donde los ninos se desconectaron moralmente. Cuando los padres instan a usar la violencia en el manejo de las relaciones interpersonales, los ninos emplean formas menos empaticas de desconexion moral, como la deshumanizacion y la culpabilizacion de la victima.

Universitas Psychologica, 2014

La escala FPR-1 se desarrolló con el fin de analizar los factores personales de resiliencia en un... more La escala FPR-1 se desarrolló con el fin de analizar los factores personales de resiliencia en un grupo de 113 mujeres desplazadas por la violencia en Colombia. Para esto se llevó a cabo un estudio cuantitativo, explicativo, de corte psicométrico. El análisis factorial de la escala señala la presencia de 13 factores latentes en torno a los cuales se organiza la información. Se encontró que las mujeres más resilientes son las adultas intermedias seguidas de las mujeres mayores, mientras que las mujeres jóvenes tienden a la inconsistencia. Se destaca que la presencia de actitudes resilientes es explicada especialmente en relación al altruismo y la apertura a los demás.

Suma Psicológica, 2015

The aim of this study was to determine whether the social categorization of poverty during childh... more The aim of this study was to determine whether the social categorization of poverty during childhood is based on essentialist beliefs. The study included 121 children, aged 5 to 7, from different socioeconomic backgrounds living in the city of Barranquilla, Colombia. The children stated that the nature of this social category is based on situations external to the individuals rather than essentialist reasons. No significant differences were found as regards age, gender or socioeconomic status (SES), except in the capacity of the respondents to self-categorize their social status. Children who find fewer differences between members and non-members of a given category tend to err in their self-categorization, which is important for the prevention of social exclusion.

... Fernando Crespo Romero1 Ricardo D. Paredes2 Abstract ... 2.1 Rejection of NIMBYs The rejectio... more ... Fernando Crespo Romero1 Ricardo D. Paredes2 Abstract ... 2.1 Rejection of NIMBYs The rejection of a NIMBY by a community usually comes from the perception of the potential negative impacts in the area that hosts them ([Mitchell & Carson, 1986], [Frey, et al., 1996]). ...

Observatorio Económico

El embarazo adolescente ha sido declarado un problema de Salud Pública, con consecuencias que per... more El embarazo adolescente ha sido declarado un problema de Salud Pública, con consecuencias que perpetúan la pobreza, la deserción escolar, la estigmatización social, etc., y con consecuencias médicas como mayor morbimortalidad materno-perinatal e infantil de las madres adolescentes y de sus hijos. Por otra parte, las madres y padres adolescentes muestran competencias parentales inadecuadas, lo que acrecienta el efecto de los embarazos adolescentes en la vida y conducta de sus niños. Continuar leyendo...

Applied Network Science, Oct 29, 2019

This paper proposes a methodological approach to explore the ability to detect social media users... more This paper proposes a methodological approach to explore the ability to detect social media users based on pedestrian networks and neighborhood attributes. We propose the use of a detection function belonging to the Spatial Capture-Recapture (SCR) which is a powerful analytical approach for detecting and estimating the abundance of biological populations. To test our approach, we created a set of proxy measures for the importance of pedestrian streets as well as neighborhood attributes. The importance of pedestrian streets was measured by centrality indicators. Additionally, proxy measures of neighborhood attributes were created using multivariate analysis of census data. A series of candidate models were tested to determine which attributes are most important for detecting social media users. The results of the analysis provide information on which attributes of the city have promising potential for detecting social media users. Finally, the main results and findings, limitations and extended use of the proposed methodological approach are discussed.

Proceedings of the 9th International Conference on Theory and Practice of Electronic Governance

This study proposes the use of a novel mathematical modeling approach denoted as inverse model fo... more This study proposes the use of a novel mathematical modeling approach denoted as inverse model for urban planning to support local government decision-making process. As opposed to traditional methods, the point of departure is a desired future defined by stakeholders followed by the question "what shall we need to do today to get there". We test the power of the proposed method using a land-use change model in a region in the south Chile to control future conflicts around land-ownerships between the population and the dominant indigenous ethnic group. Results of the model are expected to help local government with the actions to be made today to avoid conflicts in the future. Additionally we expect this study to be the starting point of a smart governance framework project in which the definition of desire future scenarios can be assisted by electronic means such as 3D visualization software.

Computer Information Systems and Industrial Management, 2021

Flow shop problem has been addressed by many researchers around the world. Different heuristic me... more Flow shop problem has been addressed by many researchers around the world. Different heuristic methods has been developed to deal with this kind of problems. Nevertheless, it is necessary to explore the impact that the bottleneck machine has on the performance of each heuristic. In this article an F6 || Cmax (Makespan) flow shop is tackled with different well-known heuristics in open literature, such as Palmer, Johnson, Gupta, CDS, NEH and PAS and their impact on Cmax was measure. The methodology used seeks to find the possible relationship between the different bottleneck machines and the result obtained from each of the heuristics. For this experiment, there were 302 scenarios with six machines in series, in which each machine had a parity number of scenarios in which it was the bottleneck. The values of Cmax obtained for each heuristic were compared against the result of corresponding MILP (Mixed Integer Liner Problem) problem. The results show that the performance of the NEH heuristic is superior in each scenario, regardless of the bottleneck, but also shows a variable behavior in each heuristic, taking into account the bottleneck machine.

GESTIÓN Y TENDENCIAS, 2021

Existe una serie de informes que alertan sobre las consecuencias que tendrán tanto el cambio clim... more Existe una serie de informes que alertan sobre las consecuencias que tendrán tanto el cambio climático como el resultado del patrón vigente en la operación económica global, los que revelarían un conjunto de externalidades negativas a partir del año 2030. Considerando ese horizonte, en este documento, se propone la sustentabilidad como una estrategia más amplia, que permita anteponerse a escenarios que escapan a la normativa medioambiental y nos permitan generar una respuesta resiliente a los impactos futuros, considerando que ya es posible advertir esta dimensión en casos incipientes a nivel global.

Biological Research

Background Diabetes mellitus (DM) has glucose variability that is of such relevance that the appe... more Background Diabetes mellitus (DM) has glucose variability that is of such relevance that the appearance of vascular complications in patients with DM has been attributed to hyperglycemic and dysglycemic events. It is known that T1D patients mainly have glycemic variability with a specific oscillatory pattern with specific circadian characteristics for each patient. However, it has not yet been determined whether an oscillation pattern represents the variability of glycemic in T2D. This is why our objective is to determine the characteristics of glycemic oscillations in T2D and generate a robust predictive model. Results Showed that glycosylated hemoglobin, glycemia, and body mass index were all higher in patients with T2D than in controls (all p < 0.05). In addition, time in hyperglycemia and euglycemia was markedly higher and lower in the T2D group (p < 0.05), without significant differences for time in hypoglycemia. Standard deviation, coefficient of variation, and total pow...

Axioms

According to the literature on innovation, several vital factors or determinants favor innovation... more According to the literature on innovation, several vital factors or determinants favor innovation in companies. In the case of R&D, significant advances have been made in the last two decades, which have enriched our understanding of its impact on various innovation outcomes. However, due to a lack of data availability, its study is difficult to address in emerging markets. This is why, using microdata from 5588 firms, we investigate the relationship between R&D investment and the impact on product and process innovations in different Latin American countries. We contribute to the literature by employing a machine learning methodology and comparing its results to a traditional innovation model. Our findings demonstrate the behavior of both product and process innovation methods.

A virtual organization is a community of people who interact together socially on a technical pla... more A virtual organization is a community of people who interact together socially on a technical platform. These kinds of communities are built on a common interest, a common problem or a common task of its members that is pursued on the basis of implicit and explicit codes of behavior. The six dimensions that are normally used to analyze virtual organizations are the use of technologies, sense of belonging, success factors, level of trust from members, virtual community management, and contents of the virtual community. The virtual organizations defined in the literature are not defined separately for non-profit research virtual organization. Here we present analysis of non-profit research virtual organization, European Working Group on Operational Research for Development (EGW ORD). This paper provides a summary of achievements and challenges faced in building a virtual organization. This kind of analysis plays a vital role in establishing new non-profit virtual organizations to serv...

Revista Latinoamericana …, 2011

... public safety (Group A), and Misdemeanors (Group B ), and the third group (C) consisting of P... more ... public safety (Group A), and Misdemeanors (Group B ), and the third group (C) consisting of Persons without committing crimes and free. ... wordpress.com/2009/10/10/la-seguridad-en-las-seis-principales-ciudades-de-colombia-primer-semestre-de-2009-fundacion-seguridad-y ...

Este trabajo aborda la causa del conflicto entre principal y agente, buscando respuestas en las d... more Este trabajo aborda la causa del conflicto entre principal y agente, buscando respuestas en las disciplinas de la biología, particularmente en las ciencias de la antropología criminal. Se ha realizado un ensamble entre los hallazgos de la teoría de agencia y la teoría de los delitos de cuello blanco, reinterpretando las actuaciones del agente desde su configuración entre instinto, herencia y personalidad. Los resultados en las ciencias biológicas podrían aportar nuevas interpretaciones y explicaciones en las ciencias de la administración, avanzando hacia mejores conceptualizaciones del conflicto, mediante teorías con mayor contenido empírico. En general, pese al conflicto permanente entre las partes, su dinámica potencia los resultados perseguidos por el principal.This paper discusses the cause of the conflict between principal and agent, looking for answers in the disciplines of biology, particularly in the science of criminal anthropology. A setting has been made between the findi...

Artificial Intelligence, 2020

Objective: To identify the self-reported injectable medications of nursing professionals in the s... more Objective: To identify the self-reported injectable medications of nursing professionals in the state of São Paulo. Method: Survey study that assessed the self-reported frequency of injection medications through a validated electronic questionnaire, applied from September to December 2017. Results: The 1,295 computed responses showed non-compliances such as sharing multidose vials for two or more patients (10.8%), reusing single-use supplies, such as use of saline flush syringes for different patients (1.2%) and needle recapping after use (4.9%). Greater adherence to glove use for administration of intravenous injections (80.5%) and lack of training for handling safety devices (13%) were reported. Correlational data showed that, the older the age, the better the self-reported injecting practices. Conclusion: Although most practices are within Safe Injecting practices, there are reports of risky practices, such as sharing single-use supplies. Training for the use of safety devices is not yet a reality for all professionals, since many reported it as rare.

Cooperation is increasingly been used in the industrial sector because of its benefits. This have... more Cooperation is increasingly been used in the industrial sector because of its benefits. This have motivated companies to establish alliances and agreements with others in order to reduce cost or access new markets, for example. In the literature, we could find many works aimed at cooperation in supply chains. A smaller amount was focused at cluster cooperation and few of them propose methodologies or models to facilitate the development and implementation of cooperation in industrial clusters. This paper provides a methodology for cooperation in clusters, which was applied to the furniture industry of Atlantico region in Colombia. Shapley value was used in order to evaluate the different coalitions and to split the benefits obtained with these coalitions. The methodology is useful for cluster members in order to encourage the formation of alliances within the cluster in order to overcome the prevailing mistrust, strengthening the cluster and gaining competitiveness.

Scientific Reports, 2021

Daily glucose variability is higher in diabetic mellitus (DM) patients which has been related to ... more Daily glucose variability is higher in diabetic mellitus (DM) patients which has been related to the severity of the disease. However, it is unclear whether glycemic variability displays a specific pattern oscillation or if it is completely random. Thus, to determine glycemic variability pattern, we measured and analyzed continuous glucose monitoring (CGM) data, in control subjects and patients with DM type-1 (T1D). CGM data was assessed for 6 days (day: 08:00–20:00-h; and night: 20:00–08:00-h). Participants (n = 172; age = 18–80 years) were assigned to T1D (n = 144, females = 65) and Control (i.e., healthy; n = 28, females = 22) groups. Anthropometry, pharmacologic treatments, glycosylated hemoglobin (HbA1c) and years of evolution were determined. T1D females displayed a higher glycemia at 10:00–14:00-h vs. T1D males and Control females. DM patients displays mainly stationary oscillations (deterministic), with circadian rhythm characteristics. The glycemia oscillated between 2 and ...