Understanding how people behave when facing hazardous situations, how intrinsic and extrinsic factors influence the risk taking (RT) decision making process and to what extent it is possible to modify their reactions externally, are questions that have long interested academics and society in general. In the spheres of Occupational Safety and Health (OSH), the military, finance and sociology, this topic has multidisciplinary implications because we all constantly face risk taking situations. Researchers have hitherto assessed risk taking profiles by conducting questionnaires (...) prior to and after the presentation of stimuli; however, this can lead to the production of biased, non-realistic, risk taking profiles. This is due to the reflexive nature of choosing an answer in a questionnaire, which is remote from the reactive, emotional and impulsive decision making processes inherent to real, risky situations. One way to address this question is to exploit VR capabilities to generate immersive environments that recreate realistic seeming but simulated hazardous situations. We propose VR as the next-generation tool to study risk taking processes, taking advantage of the big four families of metrics which can provide objective assessment methods with high ecological validity: the real-world risks approach (high presence VR environments triggering real-world reactions), embodied interactions (more natural interactions eliciting natural behaviours), stealth assessment (unnoticed real-time assessments offering efficient behavioural metrics) and physiological real-time measurement (physiological signals avoiding subjective bias). Additionally, VR can provide an invaluable tool, after the assessment phase, to train in skills related to risk taking due to its transferability to real-world situations. (shrink)

The present study aimed to analyze the stability of the memory of a stressful event (medical examination within a hospital setting) over time in young people (age range 12 to 21, Mage = 15.11 years old, SD = 3.047) with mild or moderate intellectual disability (IQ = 54.32, SD = 13.47). The results show a stability of the memory of what happened an hour and a week after the event in relation to the people involved, the apparatus used, and the (...) parts of the body explored. No interaction effects were found between the stability of memory over time and the level of intellectual disability. The level of disability (mild or moderate) only affected the description of the doctor who performed the exploration and the explored parts of the body, showing better results for people with mild disability. In addition, the results highlight the relationship between memory and IQ, especially verbal IQ. (shrink)

Durante la época colonial, en algunos países de Iberoamérica, se desarrolló un movimiento teológico que tuvo como centro el pensamiento escotista. Si bien la complejidad de las ideas de este franciscano abarcó muchos aspectos de las verdades de fe, su impronta se manifestó claramente en un poema escrito por un religioso chileno: Gregorio Farías. Este, siguiendo los parámetros de la épica heroica de corte sacro, dio a luz una obra conocida como la “Scotida”. Allí puso en valor el tema de (...) la Inmaculada Concepción antes de su promulgación dogmática, abordando los ejes que justifica su inclusión en el depósito de la fe. Este estudio analiza los aspectos mariológicos más relevantes de esta obra, anterior a la bula Innefabilis Deus.Durante la época colonial, en algunos países de Iberoamérica, se desarrolló un movimiento teológico que tuvo como centro el pensamiento escotista. Si bien la complejidad de las ideas de este franciscano abarcó muchos aspectos de las verdades de fe, su impronta se manifestó claramente en un poema escrito por un religioso chileno: Gregorio Farías. Este, siguiendo los parámetros de la épica heroica de corte sacro, dio a luz una obra conocida como la “Scotida”. Allí puso en valor el tema de la Inmaculada Concepción antes de su promulgación dogmática, abordando los ejes que justifica su inclusión en el depósito de la fe. Este estudio analiza los aspectos mariológicos más relevantes de esta obra, anterior a la bula Innefabilis Deus. (shrink)

This work presents results of improvement in the productivity of Arthrospira platensis in a company dedicated to its production. The six sigma methodology was applied in production processes that require the use of bioreactors. Starting from the analysis of the current state, aspects, physical and chemical variables that directly influence the productivity achieved were identified. Various culture media were tested and subsequently scaled for industrial production. In addition, the incorporation of carbon into the culture medium was controlled, optimizing the range (...) of potential hydrogen pH. The identified parameters were measured and six sigma methodology strategies were assigned. An improvement in productivity corresponding to 66% was verified with the same quality of final product. Keywords: Six sigma, Bioreactors, Productivity, Arthrospira platensis. References [1]E. Ariawan and A. Makalew, “Smart Micro Farm: Sustainable Algae Spirulina Growth Monitoring System” in 10th International Conference on Information Technology and Electrical Engineering, Bali, 2018, pp.1-4. [2]L. Socconini and C. Reato, Lean six sigma: sistema de gestión para liderar empresas. Primera edición. Barcelona: Marge Books, 2019. [3]H. Gutiérrez, Calidad and productividad. Cuarta edición. México D.F.: McGraw-Hill Interamericana, 2014. [4]G. Usharani, P. Saranraj and D. Kanchana, “Spirulina Cultivation: A Review” in International Journal of Pharmaceutical & Biological Archives, vol. 3, no. 6, pp. 1327-1336, December 2012. [5]J. Udin, O. Gani, A. Mahato, I. Sakib and M. Rakiuzzaman, SPIRULINA PRODUCTION IN DIFFERENT PHOTOBIOREACTORS ON ROOFTOP, International Journal of Business, Social and Scientific Research, vol. 8, no. 1, pp. 15-19, January 2020. [6]M. Arredondo, Contabilidad y análisis de costos. Primera edición. México D.F.: Grupo Editorial Patria, 2015. [7]J. García, Contabilidad de costos. Cuarta edición. México D.F.: McGraw-Hill Interamericana, 2014. [8]L. Socconini, Certificación Lean Six Sigma Green Belt para la excelencia en los negocios. Primera edición. Barcelona: Marge Books, 2015. [9]A. Vian, Introducción a la Química Industrial. Segunda edición. Buenos Aires: Reverté, 2012. [10]S. Milton, Estadística para Biología y Ciencias de la Salud. Tercera edición. Madrid: McGraw-Hill Interamericana, 2014. (shrink)

There is growing interest in the processes by which entrepreneurial opportunities are cocreated between entrepreneurs and their stakeholders. The longitudinal case study of de novo firm Wakefield Seafoods seeks to understand the underlying dynamics of phenomena that play out over time as stakeholders emerge and their contributions become essential to the opportunity formation process. The king crab data show that under conditions of uncertainty, characterized by incomplete or missing knowledge, entrepreneurial processes of experimentation, failure, and learning were effective in forming (...) and exploiting an opportunity. Moreover, contrary to existing literature that either emphasizes heroic entrepreneurs or downplays their value, this article shows that both the vision of the entrepreneur and the stakeholder contributions are critical. This detailed examination of process data shows that the cumulative actions made by entrepreneurs in concert with their stakeholders formed an opportunity that coalesced into a new market. (shrink)

The Cybersyn project has lately received increased attention. In this article, we study the local technical antecedents of Stafford Beer's Cybersyn project in Chile, particularly regarding Cybernetics and Systems ideas and local computing and networking developments. We show that the Cybersyn project in Chile was hosted by a rich intellectual environment that understood Cybernetics and Systems ideas; that it found a mature computer community and infrastructure whose high point was the State Computing Enterprise EMCO/ECOM, and an advanced networking experience whose (...) flagship was the automation of the State Bank that involved a pioneering network of teleprocess. In summary, this paper attempts to unveil the deep historical background over which the globally unique cybernetic experiment called Cybersyn flourished. (shrink)

Se analizan los resultados de una reciente encuesta levantada principalmente en la zona metropolitana de Guadalajara, México, y se destaca que, aunque la mayoría de los informantes realizaron modificaciones materiales a su entorno doméstico para adecuarlo a las nuevas condiciones exigibles, se necesita flexibilidad en los espacios arquitectónicos donde se desarrollan actividades cotidianas, por lo que es necesario que profesionales del hábitat, investigadores académicos, funcionarios gubernamentales y líderes sociales propongan formas de resiliencia ante esta nueva normalidad.

The rapid increase of industry-sponsored clinical research towards developing countries has led to potentially complex ethical issues to assess. There is scarce evidence about the perception of these participants about the ethical compliance, security, and protection. We sought to evaluate and contrast the awareness and perception of participants and non-participants of industry-sponsored research trials on ethical, safety, and protection topics. A Cases-control survey conducted at twelve research sites in México. Previous and current participants of ISRT as well as non-participants with (...) one of four chronic diseases, were asked to complete the survey which focused on ethical compliance and protection issues of ISRT, and the perception of participating in a trial. A total of 604 cases and 604 controls were surveyed. Cases significantly answered that ethics committees are aware of what is happening in studies, and that medical care of industry-sponsored research trials is better than their usual medical care. The same proportion of cases and controls thought patients must receive economical reimbursement for participating in a research study. The informed consent of the pharmaceutical clinical trial was fully read by 90.4% of the cases. Most cases were satisfied or very satisfied with their overall study participation. Previous and current participants of industry-sponsored research trials have a more positive attitude towards ethics committees, the quality of medical care of the research trials, and the main purpose of economical reimbursements, when compared to non-participants. (shrink)

In this work, we present a new approach to solve the location management problem by using the reporting cells strategy. Location management is a very important and complex problem in mobile computing which aims to minimize the costs involved. In the reporting cells location management scheme, some cells in the network are designated as reporting cells . The choice of these cells is not trivial because they affect directly to the cost of the mobile network. This article is focused on (...) the use of high performance computing to execute a parallel heuristic that places optimally the RCs in a mobile network, minimizing its total cost. The main goal of this work is to demonstrate that the collaborative work of different evolutionary algorithms can obtain very good results. For this reason, we have implemented a parallel heuristic and six evolutionary algorithms that works in a parallel way on a cluster to solve the RCs problem. (shrink)

Localization Wireless Sensor Networks (WSN) represent a research topic with increasing interest due to their numerous applications. However, the viability of these systems is compromised by the attained localization uncertainties once implemented, since the network performance is highly dependent on the sensors location. The Node Location Problem (NLP) aims to obtain the optimal distribution of sensors for a particular environment, a problem already categorized as NP-Hard. Furthermore, localization WSN usually perform a sensor selection for determining which nodes are to be (...) utilized for maximizing the achieved accuracy. This problem, defined as the Sensor Selection Problem (SSP), has also been categorized as NP-Hard. While different metaheuristics have been proposed for attaining a near optimal solution in both problems, no approach has considered the two problems simultaneously, thus resulting in suboptimal solutions since the SSP is biased by the actual node distribution once deployed. In this paper, a combined approach of both problems simultaneously is proposed, thus considering the SSP within the NLP. Furthermore, a novel metaheuristic combining the Black Widow Optimization (BWO) algorithm and the Variable Neighbourhood Descent Chains (VND-Chains) local search, denominated as BWO-VND-Chains, is particularly devised for the first time in the author’s best knowledge for the NLP, resulting in a more efficient and robust optimization technique. Finally, a comparison of different metaheuristic algorithms is proposed over an actual urban scenario, considering different sensor selection criteria in order to attain the best methodology and selection technique. Results show that the newly devised algorithm with the SSP criteria optimization achieves mean localization uncertainties up to 19.66 % lower than traditional methodologies. (shrink)

Recopilació dels textos de les reflexions que van tenir lloc en l'encontre inter nacional "Noves fronteres de la ciència, l'art i el pensament. Física de l'estèt ica", celebrat els dies 6 i 7 de setembre de 2005 a l'Auditori Caixa Catalunya-l a Pedrera de Barcelona. En la trobada es plantejaren preguntes universals relati ves als límits de la nostra percepció, al disseny de la matèria o a la narrativa de la complexitat circumdant. Va comptar amb la col·laboración de personalitats d'àmbits (...) no científics que, des de la seva perspectiva, contribuiren a destil·l ar l'estètica emanada de les tendències contemporànies d'aquesta disciplina cien tífica. (shrink)

Background People who are at elevated risk of suicide stand to benefit from internet-based interventions; however, research in this area is likely impacted by a range of ethical and practical challenges. The aim of this study was to examine the ethical issues and practical barriers associated with clinical studies of internet-based interventions for suicide prevention. Method This was a mixed-methods study involving two phases. First, a systematic search was conducted to identify studies evaluating internet-based interventions for people at risk of (...) suicide, and information pertaining to safety protocols and exclusion criteria was extracted. Second, investigators on the included studies were invited to complete an online survey comprising open-ended and forced-choice responses. Quantitative and qualitative methods were used to analyse the data. Results The literature search identified 18 eligible studies, of which three excluded participants based on severity of suicide risk. Half of the 15 suicide researchers who participated in the survey had experienced problems obtaining ethics approval, and none had encountered adverse events attributed to their intervention. Survey respondents noted the difficulty of managing risk in online environments and the limitations associated with implementing safety protocols, although some also reported increased confidence resulting from the ethical review process. Respondents recommended researchers pursue a collaborative relationship with their research ethics committees. Conclusion There is a balance to be achieved between the need to minimise the risk of adverse events whilst also ensuring interventions are being validated on populations who may be most likely to use and benefit from them. Further research is required to obtain the views of research ethics committees and research participants on these issues. Dialogue between researchers and ethics committees is necessary to address the need to ensure safety while also advancing the timely development of effective interventions in this critical area. (shrink)

Recently, John Doe, an undocumented immigrant who was detained by United States Immigration and Customs Enforcement, was admitted to a hospital off-site from a detention facility. Custodial officers accompanied Mr. Doe into the exam room and refused to leave as physicians examined him. In this analysis, we examine the ethical dilemmas this case brings to light concerning the treatment of patients in immigration detention and their rights to privacy. We analyze what US law and immigration detention standards allow regarding immigration (...) enforcement or custodial officers’ presence in medical exams and documentation of detainee health information. We describe the ethical implications of the presence of officers in medical exam rooms, including its effects on the quality of the patient-provider relationship, patient privacy and confidentiality, and provider's ability to provide ethical care. We conclude that the presence of immigration enforcement or custodial officers during medical examination of detainees is a breach of the right to privacy of detainees who are not an obvious threat to the public. We urge ICE and the US Department of Homeland Security to clarify standards for and tighten enforcement around when officers are legally allowed to be stationed in medical exam rooms and document detainees’ information. (shrink)

The aim of the present study was to assess the impact of past traumatic war experiences on preadolescents in the Gaza Strip, which could be useful for psychological intervention with current and future child victims. Participants were 521 preadolescents from United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) schools, aged 11 and 13 years old. Sections I to IV from Iraqi Version-Arabic of Harvard Trauma Questionnaire was used to assess trauma experiences and Post-Traumatic Stress (...) Disorder (PTSD). The results show that the preadolescents in the Gaza Strip witnessed the destruction of their homes and the murder of family members and friends. A quarter of the individuals assessed either suffered torture or witnessed others undergoing it, including sexual assaults. Almost half of them experienced a lack of food and clean water. The traumatic and torture experiences seriously affected preadolescents’ mental health as 26.29% met criteria for the diagnosis of PTSD. The data analysis revealed two PTSD modalities, with the severity of impact depending on whether social implications were involved. Further research is required to check whether these two modalities fit to PTSD and complex PTSD. Understanding the effects of past wars on preadolescents in Gaza and distinguishing between different PTSD types could enhance comprehension of the impacts of current attacks on child victims. It can also aid in determining the type of intervention needed to minimize the impact on the mental health of Palestinian youth, enhancing their resilience through psychological and social support. (shrink)