Egresados de nuevas carreras universitarias: Competir desigualmente en el mercado de trabajo

The purpose of the study is to describe the process of job insertion in a context of the local labour market of the graduates to identify traits of discrimination originated by their hybrid professional profile . A case study and a qualitative approach were used to investigate the graduates of the first two generations of the Business Sciences Degree of a small Mexican public university. The results contradict the advantages attributed to hybrid university careers, far from facilitating the incorporation to the work, it found that hybrid graduates compete of unequal way for job offers due to two situations: lack of social knowledge of their profession by all employers that originates the absence of demand of these professionals, and lack of professional identity of graduates that causes they are unable to justify and defend the usefulness of their hybrid training.El objetivo del trabajo es describir el proceso de inserción laboral en un contexto de mercado de trabajo local de los egresados para identificar rasgos de discriminación originados por su perfil profesional híbrido ; mediante un estudio de caso y un enfoque cualitativo se investigó a los egresados de las dos primeras generaciones de la Licenciatura en Ciencias Empresariales de una pequeña universidad pública mexicana. Los resultados contradicen las ventajas atribuidas a las carreras universitarias híbridas, pues lejos de facilitar la incorporación al trabajo se encontró que los egresados híbridos compiten de manera desigual por las ofertas de trabajo debido a dos situaciones: la falta de conocimiento social de su profesión por el conjunto de empleadores que origina la ausencia de demanda de dichos profesionistas y, la falta de identidad profesional de los egresados que ocasiona que no sean capaces de justificar y defender la utilidad de su formación híbrida

ACon: A learning-based approach to deal with uncertainty in contextual requirements at runtime

Context: Runtime uncertainty such as unpredictable operational environment and failure of sensors that gather environmental data is a well-known challenge for adaptive systems. Objective: To execute requirements that depend on context correctly, the system needs up-to-date knowledge about the context relevant to such requirements. Techniques to cope with uncertainty in contextual requirements are currently underrepresented. In this paper we present ACon (Adaptation of Contextual requirements), a data-mining approach to deal with runtime uncertainty affecting contextual requirements. Method: ACon uses feedback loops to maintain up-to-date knowledge about contextual requirements based on current context information in which contextual requirements are valid at runtime. Upon detecting that contextual requirements are affected by runtime uncertainty, ACon analyses and mines contextual data, to (re-)operationalize context and therefore update the information about contextual requirements. Results: We evaluate ACon in an empirical study of an activity scheduling system used by a crew of 4 rowers in a wild and unpredictable environment using a complex monitoring infrastructure. Our study focused on evaluating the data mining part of ACon and analysed the sensor data collected onboard from 46 sensors and 90,748 measurements per sensor. Conclusion: ACon is an important step in dealing with uncertainty affecting contextual requirements at runtime while considering end-user interaction. ACon supports systems in analysing the environment to adapt contextual requirements and complements existing requirements monitoring approaches by keeping the requirements monitoring specification up-to-date. Consequently, it avoids manual analysis that is usually costly in today’s complex system environments.Peer ReviewedPostprint (author's final draft

Much More Than It Was Expected: Preservational Differences of Diaphysis and Epiphyseal Ends of Guanaco (Lama guanicoe) Long Bones in Southern Patagonia (Argentina)

In archeofaunal assemblages from different parts of the world there is a predominance of diaphysis over articular ends. This differential proportion of diaphysis over epiphysis also characterizes a considerable proportion of the faunal samples from Patagonia, especially those from caves and rockshelters. However, the assemblages recovered from open-air contexts in south Patagonia shows an inverse pattern: a predominance of the epiphysis over the diaphysis of guanaco (Lama guanicoe) long bones, contrary to the expectations derived from their respective bone mineral density (BMD) values. The archeofaunal information obtained from six open-air sites is presented and the pattern is evaluated and compared considering the diaphyseal and epiphyseal long bone structure, the densitometric values obtained by Stahl (1999) for South American camelids, the environmental characteristics related with the substrates (lacustrine clay and sand dunes) of the sites and the regional taphonomic information. It is proposed that in dynamic environments such as those here considered, the observed pattern is related to weathering/abrasion, acting differentially on the types and position of the tissues that form the diaphysis and epiphysis. When the diaphysis begins to open and fragment the fracture stops in the epiphysis. Such process would be accelerated in cultural contexts as a result of obtaining nutrients from long bones -considered of low processing cost (sensu Marean & Cleghorn, 2003)- and blanks for artifacts, causes bone to be fractured. Besides, the lack of large carnivores in Patagonia is another important factor that would affect the differential representation on epiphysis over diaphysis. Similar results obtained on different substrates can sustain the expression of the pattern on a regional scale while indicating that it corresponds to openair site contexts in general. Thus, the correlation between present elements and BMD would result in a partial tool to evaluate the integrity of archaeofaunas from Southern Patagonia open-air sites.Fil: Belardi, Juan Bautista. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Santa Cruz. Universidad Tecnológica Nacional. Facultad Regional Santa Cruz. Centro de Investigaciones y Transferencia de Santa Cruz. Universidad Nacional de la Patagonia Austral. Centro de Investigaciones y Transferencia de Santa Cruz; ArgentinaFil: Rindel, Diego Damian. Secretaría de Cultura de la Nación. Dirección Nacional de Cultura y Museos. Instituto Nacional de Antropología y Pensamiento Latinoamericano; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bourlot, Tirso Javier. Secretaría de Cultura de la Nación. Dirección Nacional de Cultura y Museos. Instituto Nacional de Antropología y Pensamiento Latinoamericano; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Influencia del uso de los inhibidores naturales en la calidad microbiológica de quesos frescos.

La presente investigación bibliográfica se realizó con el objetivo de conocer la influencia de compuestos fenólicos como el timol, carvacroles presentes en el tomillo, jengibre, orégano, y el uso de la bacteriocina nisina que inhiben la proliferación de microorganismos patógenos frecuentemente presentes en los quesos frescos comercializados a nivel de mercados públicos nacionales y extranjeros. Revisando estudios de varios investigadores se compara los resultados de la calidad bacteriana, determinando elevadas cargas microbiológicas de 5,7x107 UFC/g para coliformes totales y 8,00x106 UFC/g para aerobios mesófilos en los mercados públicos del Ecuador. Así mismo, se reporta la contaminación microbiológica realizada en otros países con valores de 42,00x105 UFC/g para Escherichia Coli, 637x105 UFC/g para Coliformes, y 1090x105 UFC/g para Aerobios mesófilos. Por otra parte, al comparar los resultados del uso del orégano y la nisina como principales conservantes naturales se evidencia el control de microorganismos patógenos que son los principales causantes de distintas enfermedades en la salud humana. Por lo tanto, se concluye que la baja calidad microbiológica es evidencia de las pobres condiciones de higiene en la elaboración de quesos frescos y son indicadores de las deficiencias que puede existir en su proceso de elaboración, manipulación, transporte, almacenamiento y las condiciones en que son distribuidos y comercializados al consumidor ya que no cumple con las normas técnicas de salubridad ecuatoriana NTE INEN 1528, peruana DIGESA, colombiana INCOTEC 750 y la normativa cubana 587.This bibliographic research was carried to know the influence of phenolic compounds such as thymol, carvacrols present in thyme, ginger, oregano, and the use of the bacteriocin nisin that inhibit the proliferation of common pathogenic microorganisms present in fresh cheeses traded at the level of national and foreign public markets. Different results of different studies on bacterial quality were compared and it was determined that high microbiological loads of 5.7x107 CFU / g for total coliforms and 8.00x106 CFU / g for mesophilic aerobes were found in cheeses in the public markets of Ecuador. Likewise, the microbiological contamination analyzed in other countries is reported with values of 42.00x105 CFU / g for Escherichia Coli, 637x105 CFU / g for Coliforms, and 1090x105 CFU / g for mesophilic aerobes. On the other hand, when comparing the results of the use of oregano and nisin as the main natural preservatives, the control of pathogenic microorganisms that are the main causes of different diseases in human health is evidenced. Therefore, it is concluded that the low microbiological quality is evidence due to the poor hygiene conditions in the production of fresh cheeses and are indicators of the deficiencies that may exist in their production process, handling, transport, storage and the conditions in which they are distributed and marketed to the consumer since it does not comply with the Ecuadorian technical health standards NTE INEN 1528, Peruvian DIGESA, Colombian INCOTEC 750 and Cuban regulations 587

Mortality trends for accidental falls in older people in Spain, 2000-2015

BACKGROUND: Accidental falls in older people are a major public health problem but a relatively limited number of studies have analyzed the mortality trends from this cause. Effective public health interventions have been found to prevent the incidence of falls and their complications. Therefore, characterizing the mortality trends of falls for different subpopulations can help to identify their needs and contribute to develop more appropriate prevention programs for specific target groups. METHODS: This study was based on a longitudinal analysis of death rates from accidental falls (2000-2015) stratified by sex for the population ≥ 65 years and by age groups (65-74, 75-84, ≥85). A joinpoint regression model was used to identify trend inflection points. The Annual Percent Change (APC) was estimated for each trend. RESULTS: Mortality rates per 100,000 person-years increased from 20.6 to 30.1 for men and 13.8 to 20.8 for women between 2000 and 2015. Men presented a relevant trend increase between 2008 and 2015 (APC [95% CI] 7.2% [5.3;9.2]) and women between 2008 and 2013 (7.9% [4.1;11.8]) There were no trend differences between sexes. For 65-74 years old men we found a relevant increase in the last period (2011-2015) (7.8% [1.0;15.1]). Those aged 75-84 years showed a trend increase between 2007 and 2015 (6.4% [4.4;8.4]) and men ≥85 years presented a remarkably high trend between 2008 and 2015 (9.0% [5.2;13]). There were no relevant differences between age groups. Women aged 65-74 had no relevant trend through the period. Those aged 75-84 presented an uniform trend increase for the whole period, 2000-2015, (3.4% [2.3;4.4]) and women ≥85 had and important trend increase between 2008 and 2013 (11.1% [5.3;17.2]), that has reached an stable level in the last 2 years. There were no relevant differences between the 75-84 and ≥85 age groups. CONCLUSIONS: Recent mortality trends from accidental falls increased in men ≥65 years and women ≥75 years. These results recommend the implementation of specific preventive programs.This work was supported by grant PI15CIII/00037 from the “Carlos III” Institute of Health.S

Using UML for learning how to design and model cyber-physical systems

In this paper a methodology for teaching and learn-ing the modeling of embedded systems and, in a more genericvision cyber-physical systems (CPS) is presented. To this end, asubset of tools from UML is used in an intuitive and orderedway starting with an informal description of the system untilimplementation details are obtained. However, the codificationof the system is left out as the programming language dependson the hardware platform to be used. The method has beenused in grade courses for several years now with an importantaccumulated experience that shows how students are able toadopt it and learn to elicit the different types of requirements,actors and functions.Fil: Ordinez, Leonardo Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages". Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages"; ArgentinaFil: Eggly, Gabriel Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Micheletto, Matías Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages". Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages"; ArgentinaFil: Santos, Rodrigo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages". Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages"; Argentin

SACRE: Supporting contextual requirements’ adaptation in modern self-adaptive systems in the presence of uncertainty at runtime

Runtime uncertainty such as unpredictable resource unavailability, changing environmental conditions and user needs, as well as system intrusions or faults represents one of the main current challenges of self-adaptive systems. Moreover, today’s systems are increasingly more complex, distributed, decentralized, etc. and therefore have to reason about and cope with more and more unpredictable events. Approaches to deal with such changing requirements in complex today’s systems are still missing. This work presents SACRE (Smart Adaptation through Contextual REquirements), our approach leveraging an adaptation feedback loop to detect self-adaptive systems’ contextual requirements affected by uncertainty and to integrate machine learning techniques to determine the best operationalization of context based on sensed data at runtime. SACRE is a step forward of our former approach ACon which focus had been on adapting the context in contextual requirements, as well as their basic implementation. SACRE primarily focuses on architectural decisions, addressing selfadaptive systems’ engineering challenges. Furthering the work on ACon, in this paper, we perform an evaluation of the entire approach in different uncertainty scenarios in real-time in the extremely demanding domain of smart vehicles. The real-time evaluation is conducted in a simulated environment in which the smart vehicle is implemented through software components. The evaluation results provide empirical evidence about the applicability of SACRE in real and complex software system domains.Peer ReviewedPostprint (author's final draft

Cloud TAC: OpenStack and Technology Learning and Knowledge for teaching IT Infrastructure

In today's university environment, most students are digital natives. Therefore, it is difficult to imagine their academic life without relating it to the various cloud tools for communication and collaborative work. In this context, university professors work in new scenarios of communication and collaborative work in the classroom. This represents a transformation in the teaching-learning process assisted by new ICTs s in the cloud. Working in the cloud offers the opportunity to transmit new knowledge when using pedagogical strategies supported by computer technologies. With the combination of ICTs and modern teaching-learning processes, the concept of Learning and Knowledge Technologies (TAC) is valuable. This work exposes the academic experience of researching and developing Cloud Computing using an OpenStack configuration so that students can empower themselves with the knowledge and use of cloud technologies. Thus, to be able to teach concepts and practices on IT Infrastructure including activities such as: design, configuration, implementation and administration of a private cloud for academic uses.Instituto de Investigación en InformáticaInstituto de Investigación en Informátic

Capacitación en el manejo de Tecnologías de la Información y la Comunicación (TICs) a personas mayores de la ciudad de San Lorenzo que participan del Programa de Universidad Abierta para Adultos Mayores de la UNR

El siguiente trabajo presenta un proyecto destinado a la capacitación a personas mayores en Tecnologías de la Información y la Comunicación (TICs). En el contexto sociocultural actual el uso de estas prácticas está presente en un sinfín de actividades, transformando a estas tecnologías en fundamentales para el desenvolvimiento diario de un individuo. La propuesta, a realizarse en la ciudad de San Lorenzo, prevé la apropiación autónoma de herramientas digitales por parte del participante, como así también la constitución de un espacio físico digital y una plataforma web destinada a brindar una mejor experiencia en la accesibilidad de recursos e información. Dado que su desarrollo involucra a dos organismos públicos (Municipalidad de la ciudad de San Lorenzo y Universidad Nacional de Rosario) el proyecto también propicia el trabajo conjunto, en una planificación de adecuación y reconocimiento. Se propone entonces una integración entre sectores, compartiendo recursos (saberes, experiencias, medios de influencia, financiamientos, etc.) que brinden consistencia, eficacia y eficiencia en la ejecución de lo programado

Dual function of HYPONASTIC LEAVES 1 during early skotomorphogenic growth in Arabidopsis

Seeds germinating underground display a specific developmental programme, termed skotomorphogenesis, to ensure survival of the emerging seedlings until they reach the light. They rapidly elongate the hypocotyl and maintain the cotyledons closed, forming a hook with the hypocotyl in order to protect apical meristematic cells from mechanical damage. Such crucial events for the fate of the seedling are tightly regulated and although some transcriptional regulators and phytohormones are known to be implicated in this regulation, we are still far from a complete understanding of these biological processes. Our work provides information on the diverse roles in skotomorphogenesis of the core components of microRNA biogenesis in Arabidopsis, HYL1, DCL1, and SE. We show that hypocotyl elongation is promoted by all these components, probably through the action of specific miRNAs. Hook development also depends on these proteins however, remarkably, HYL1 exerts its role in an opposite way to DCL1 and SE. Interestingly, we found that a specific HYL1 domain involved in protein–protein interaction is required for this function. Genetic evidences also point to the phosphorylation status of HYL1 as important for this function. We propose that HYL1 help maintain the hook closed during early skotomorphogenesis in a microprocessor-independent manner by repressing the activity of HY5, the transcriptional master regulator that triggers light responses. This work uncovers a previously unnoticed link between components of the miRNA biogenesis machinery, the skotomorphogenic growth, and hook development in Arabidopsis.Fil: Sacnun, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Crespo, Roberta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Palatnik, Javier Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Rasia, Rodolfo Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Gonzalez Schain, Nahuel Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentin