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El presente artículo científico busca recopilar los principales aportes del seminario final de graduación titulado: manifestaciones del bienestar desde las vivencias de hombres en adultez intermedia que experimentaron separación de pareja. El objetivo general es analizar estas manifestaciones propuestas desde el bienestar. Se utilizan antecedentes contextuales y empíricos nacionales e internacionales relacionados con el tema del bienestar y las relaciones de pareja, para contextualizar los hallazgos de la investigación. En cuanto a la disciplina de Orientación, se toman en cuenta los tres pilares fundamentales que caracterizan la disciplina: prevención, intervención social y desarrollo, resaltando que esta área puede brindar alternativas precisas que permitan el crecimiento integral de las personas con experiencias de la separación en esta etapa de la adultez intermedia. La investigación utiliza un enfoque cualitativo y una metodología fenomenológica, donde se hicieron entrevistas a profundidad a seis hombres en etapa de adultez intermedia. La aplicación de esta técnica de investigación contribuyó en el autoconocimiento y la comprensión de las experiencias de los hombres participantes mediante la recopilación de sus testimonios. Para el análisis de la información se utilizan tablas de consistencia, en la que se contrasta la bibliografía pertinente con las narraciones de los participantes. Se visualizan en los hallazgos, aspectos específicos para la promoción del bienestar integral desde la intervención orientadora. Esta puede brindar el apoyo colaborativo entre iguales, lo cual resulta muy valioso para afrontar el proceso de separación con distintas opciones en función del bienestar de cada hombre. Se recomienda la articulación de este tipo de procesos, en los que los hombres puedan explorar sus emociones en grupo y a partir de ello generar herramientas que aumenten sus niveles de bienestar.

In permissioned blockchains, a set of identifiable miners validates transactions and creates new blocks. In scholarship, the proposed solution for the consensus protocol is usually inspired by the Byzantine fault tolerance (BFT) based on voting rather than the proof-of-work (PoW). The advantage of PoW with respect to BFT is that it allows the final user to evaluate the cost required to change a confirmed transaction without the need to trust the consortium of miners. In this paper, we analyse the problems that arise from the application of PoW in permissioned blockchains. In standard PoW, it may be easy for colluded miners to temporarily reach 50% of the total hash power (HP). Moreover, since mining rewards are not usually expected in permissioned contexts, the problem of balancing the computational efforts among the miners becomes crucial. We propose a solution based on a sliding window algorithm to address these problems and analyse its effectiveness in terms of fairness and security. Furthermore, we present a quantitative, analytical model in order to assess its capacity to balance the hash power provided by heterogeneous miners. Our study considers the trade-off between the need to trust the entire consortium of miners guaranteed by the global HP invested by the mining process and the need to prevent collusion among malicious miners aimed at reaching 50% of the total HP. As a result, the model can be used to find the optimal parameters for the sliding window protocol.

Background: Difficult airway is a clinical situation in which a trained anesthesiologist experiences trouble with facemask ventilation and/or laryngoscopy and/or intubation. Poor identification of at-risk patients has been identified as one of the causes of difficult airway management. Objectives: We aimed to review the literature regarding the use of wristbands to identify adult patients with known or predicted difficult airway in hospitals. Methods: We searched Web of Science (WoS), Scopus, MEDLINE and OVID following the stages described by the PRISMA Extension for Scoping Reviews (PRISMA-ScR). We used a combination of MeSH terms and non-controlled vocabulary regarding the use of difficult airway wristbands in adults. Three researchers independently reviewed the full texts and selected the papers to be included based on the inclusion criteria. Results: Our search generated 334 articles after removing duplicates. After reviewing full text articles, only seven studies were included. Here we found that most were from the United States, in which the authors report the use of in-patients’ wristbands in adults. According to the authors, the use of wristbands is being implemented as a measure of improved quality and safety of in-patients with difficult airway either known or suspected. Conclusions: The identification with wristbands of a difficult airway at an appropriate time is an identification strategy can have a low cost but a high impact on morbidity. It is pertinent to develop a methodology such as the use of wristbands, that allows a good classification and identification of patients with difficult airway in hospitals from Latin America.

El artículo presenta la sistematización de las experiencias de la población beneficiaria y de las personas estudiantes voluntarias de la carrera de Orientación generadas a partir del proyecto Orientación en Tiempos de Cuarentena (OETC). Este proyecto fue desarrollado por la Asociación de Estudiantes de Orientación de la Universidad de Costa Rica (ASEORI) durante los meses de marzo a agosto del año 2020. El objetivo fue evidenciar los aportes del acompañamiento virtual, brindado desde la modalidad de Orientación Individual, mediante las experiencias de las personas involucradas en el proyecto. Este artículo, se basa en el modelo teórico-metodológico de sistematización de las experiencias propuesto por Óscar Jara, desde un enfoque cualitativo. En el proyecto mencionado participaron 23 personas estudiantes voluntarias de cuarto año y licenciatura de la carrera de Orientación, acompañando de forma virtual a 116 personas de 56 carreras distintas de la Universidad de Costa Rica. La información se compiló por medio de una base de datos diseñada para el Proyecto. En ella, se resguardaron consentimientos informados, evaluaciones y autoevaluaciones realizadas por las personas involucradas. Los resultados demuestran la efectividad alcanzable desde la Orientación Individual, complementada con el modelo tecnológico para la intervención a distancia, debido a que se evidencia que se puede realizar acompañamientos y procesos de Orientación que promuevan el bienestar de las personas orientadas.

Neurons can convert pathogenic T cells to anti-inflammatory FoxA1+ regulatory T cells (Tregs), which can ameliorate EAE, but the molecular mechanism is only partially understood. Liu et al. show that autocrine interferon β signalling induces PDL1 expression in neurons, which is essential for neurons to reprogramme pathogenic T cells to FoxA1+ Tregs.

In Wireless Sensor Networks (WSN) a set of motes monitors the environment by measuring some physical phenomena such as humidity, light, temperature, vibrations. The coexistence of different data types arises the problem of assigning the network resources in a fair way by taking into account possible different priorities among the traffic streams. In this paper we propose an allocation control scheme which is easy to implement, meets the limited resources of sensor nodes, and does not require extra control traffic in the WSN. Our scheme is based on the idea that the motes maintain a window with the classes of the latest transmissions. We propose an analytical model and provide an algorithm to study the performance of this allocation scheme with respect to the throughput and the fairness achieved. The model is a continuous time Markov chain which is proved to be dynamically reversible (although not reversible) and admits a product-form equilibrium distribution.

The complexity of modern cloud facilities requires attentive management policies that should encompass all aspects of the system. Security is a critical issue, as intrusions, misuse or denial of service attacks may damage both the users and the cloud provider including its reputation on the market. Disruptive attacks happen fast, cause evident and short term damages and are usually the result of operations that are hard to disguise. On the other hand, Energy oriented Denial of Service (eDoS) attacks aim at producing continuous minor damages, eventually with long term consequences. These long lasting attacks are difficult to detect. In this paper we model and analyse the behaviour of a system under eDoS attack. We study the impact in terms of cloud energy consumption of an attack strategy previously proposed in the literature and compare it with other strategies that we propose. Our findings show that the strategy previously proposed in the literature, based on keeping the cloud close to saturation, is not optimal (from the point of view of the attacker) in presence of non-constant workload and that there is a trade-off between the aggressiveness of the attacker and the duration of the attack in order to maximise the damage.

Nature Communications 8: Article number: 14709 (2017); Published 24 April 2017; Updated 22 May 2017 The affiliation details for Marco Prinz are incorrect in this Article. The correct affiliation details for this author are given below: Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg 79106, Germany.