New ways of communication: the impact of Twitch in journalism

El periodismo se encuentra en un momento en el que la innovación es necesaria para el buen desarrollo de la profesión. El uso de redes sociales y nuevas plataformas está muy extendido en la ciudadanía actual y la presencia de medios de comunicación en estas garantiza una buena difusión del contenido. Una de las plataformas a la que la población dedica más tiempo es Twitch y a su misma vez es en la que el periodismo no tiene una amplia presencia ni aprovecha las herramientas que se le ofrecen para generar contenido a un gran rendimiento. La visión más tradicionalista de las generaciones anquilosadas del sector hace que la innovación por estas plataformas sea escasa y la presencia de medios generalistas prácticamente nula. En Twitch, mientras tanto, los comunicadores realizan labores periodísticas para la difusión de contenido de actualidad sin tener en cuenta los requisitos de la profesión, pero alcanzando, de igual manera, una gran difusión por ese tipo de contenido. Es en este punto de convergencia en el que los medios tradicionales podrían aprovechar para el desarrollo de proyectos periodísticos en Twitch.Journalism is at a time when innovation is needed for the proper development of the profession. The use of social media and new platforms is common among today’s society and the presence of the media on these guarantees a good dissemination of the content. One of the most used platforms is Twitch and, at the same time, it is where journalism is not really presence or takign advantage of the tools offered to create content at high performance. The traditional vision of the antiquated generations of the profession about these platforms makes the presence of generalist media almost non-existent. On Twitch, meanwhile, communicators carry out journalistic task for the dissemination of news without taking into account the requirement of the profession but achieving, in the same way, a great dissemination for this type of content. It is at this point of convergence that traditional media could take advantage of for the development of journalistic projects on Twitch

Hipoxia en cardiomiocitos; regulación de la expresión de la subunidad b1 del canal maxi-k y participación en el precondicionamiento cardíaco

The presence of maxi-K channels has been reported in the mitochondria of the cardiac myocytes where it plays a cytoprotective role. Using real-time PCR we have observed that severe chronic hypoxia induces the down-regulation of the b1-subunit in neonatal rat cardiomyocytes in culture, and that this effect is persistent and dose-dependent. We have studied the molecular mechanisms underlying this effect and the physiological significance of this regulation in the heart. The transcription inhibitor DRB and the translational inhibitor cycloheximide abolish the down-regulation of the b1-subunit induced by hypoxia in this preparation, indicating that regulation occurs at the transcriptional level and that it depends on the novo synthesis of proteins. Small-interference RNA (si-RNA) for HIF-1a and HIF-2a reveals that HIF-1a is not responsible for the effect. However si-RNA for HIF-2a induces a partial reversion of the effect. This is consistent with the stabilization of HIF-2a protein in hypoxia observed by western-blot analysis even in the presence of si-RNA. To study the functional significance of the down-regulation of b1-subunit during chronic hypoxia we performed simulated ischemia assays on cardiomyocytes previously cultured under normoxic and hypoxic conditions. We observed that the hypoxic treatment increased cell viability during the simulated ischemia, and that the b1-subunit si-RNA treatment (in normoxia) also increased cell viability. This increase in cell viability was smaller than the one elicited by the hypoxic treatment, indicating that the down-regulation of the b1-subunit during hypoxia could contribute to cardioprotection induced by chronic hypoxia

Riesgos que puede ocasionar en los menores de edad la custodia compartida

T 346.017 3 B323; 93 p.En este trabajo se exponen las razones jurídicas del proyecto de ley que reposa en el Congreso de la República acerca de la custodia compartida , y de igual manera, se revisan publicaciones de investigaciones realizadas en otros países, en las cuales se comprueba que esta situación genera cambios en los comportamientos de los niños y adolescentes.Universidad Libre de Pereir

Stochastic green functions in dissipative and non dissipative closed chaotic devices

In this communication we will introduce a new set of Green Functions for closed cavities. Closed cavities are, in general, chaotic, which implies that tiny changes in the configuration (among others, wave frequency, small geometry perturbations, permittivity or permeability alterations due to temperature or pressure fluctuations) cause large electromagnetic field fluctuations. Stochastic models are the most suitable way for addressing this chaotic behaviour. We demonstrate that the Green functions in chaotic environments can be modelled by a random variable (Stochastic Green Function) that can be obtained in closed forms for non dissipative and low dissipative cavities. This closed form corresponds to alphastable distributions whose parameters depends mainly of frequency and distance (between source and observation) and in a lesser extent of volume of the cavity and are independent of the shape of the cavity

Hydrothermal treatment of bio-oil for the production of biodiesel antioxidants

INTRODUCTION Fuel consumption is inevitable for industrial development and growth of any country. In the last years, diesel fuels have gained an increasingly important role in the transportation sector. However, the rapid depletion of crude oil resources, as well as the worldwide concern about the environmental damage related to the increase in the emissions of carbon dioxide and other pollutants, has led to an increasing awareness about the development and use of renewable fuels. In this context, biodiesel appears as a good alternative to fossil diesel because of its renewable and biodegradable character, also being a non-toxic and clean fuel that can be used in compression ignitions engines with little or no modification [1]. Biodiesel is largely composed of a mixture of long chain fatty acid monoalkyl esters (FAME) and can be commercially produced through the transesterification reaction of natural triglycerides with a short chain alcohol. Although the technology for converting edible oils such as sunflower oil, palm oil, soybean oil, coconut oil or rapeseed oil to biodiesel has been well established [2, 3], this practice is gaining serious global concern on preserving food security of the planet. Therefore, there is a marked trend towards abolition of the use of edible oils for fuel production, encouraging the use of biofuels derived from non-edible ligno-cellulosic plants and wastes [4]. Please click Additional Files below to see the full abstract

Caries dental en diabéticos tipo 1: Influencia de factores sistémicos de la enfermedad en la instauración de la caries dental

Objetivos: La diabetes mellitus es una de las enfermedades crónicas más prevalentes en población general. Se presenta un estudio que pretende evaluar la presencia de caries en los pacientes diabéticos tipo 1. El objetivo específico era comprobar si había o no mayor incidencia de caries en diabéticos tipo 1 comparándolos con un grupo de individuos no diabéticos. También, se comprobó la relación con las tasas de flujo salival y con los factores propios de la enfermedad como el grado de control metabólico, el tiempo de evolución de la enfermedad y la existencia de complicaciones crónicas. Diseño del estudio: Se estudiaron 90 diabéticos tipo 1 de edades comprendidas entre los 18 y los 50 años de edad y un grupo de pacientes controles no diabéticos pareados por edad y sexo. Se realizó una exploración visual y táctil, en todos los dientes de los sujetos explorados. Se tuvo en cuenta el grado de la higiene oral mediante el índice de placa de O'Leary, y se estudiaron las tasas de saliva basal y estimulada en ambos grupos. En el grupo diabético se relaciono con el control de la enfermedad mediante la obtención de la media de la hemoglobina glicosilada (HbA1c) de los dos años previos a la exploración, así como la evolución de su enfermedad en años y la existencia de complicaciones como neuropatía diabética o retinopatía. Resultados: Bajo similares condiciones de higiene oral y de flujo salival, el grupo diabético resultó tener una incidencia de caries mayor que el grupo control (p<0.05). Asimismo, al estudiar específicamente al grupo diabético, ni el control metabólico de la enfermedad, ni la evolución de la enfermedad, ni la existencia de complicaciones de la diabetes tenían influencia en la instauración de caries dental. Conclusiones: Se sugiere que habría que estudiar factores cualitativos salivales que explicasen esta mayor incidencia de caries en los diabéticos.Objectives: Diabetes mellitus is one of the most common chronic diseases in the general population. A study is made of the presence of caries in type 1 diabetic patients. The specific aim was to determine whether such patients present a greater incidence of dental caries than non-diabetic individuals. An evaluation was also made of the relationship of caries to salivary flow and to factors inherent to the disease such as the degree of metabolic control, the duration of diabetes, and the existence of chronic complications. Study design: The study comprised 90 type 1 diabetics between 18 and 50 years of age, and a group of non-diabetic controls matched for age and sex. Visual and tactile exploration of the dentition was carried out in all cases. Oral hygiene was rated based on the O'Leary plaque index, and basal (unstimulated) and stimulated salivary flow were evaluated in both groups. In the diabetic group, correlations were established with disease control based on the mean glycosylated hemoglobin (HbA1c) value corresponding to the two years prior to examination; evolution of the disease in years; and the existence of complications such as diabetic neuropathy or retinopathy. Results: Under similar conditions of oral hygiene and salivary flow, the diabetic group showed a higher incidence of caries than the control group (p<0.05). Likewise, on specifically analyzing the diabetic group, metabolic control of the disease, the duration of diabetes, and the existence of complications of the disease exerted an influence upon the development of dental caries. Conclusions: Qualitative salivary studies are advised to better account for this increased incidence of caries in the diabetic population

Type 1 diabetes mellitus and periodontal disease : relationship to different clinical variables

Objective: This study is designed to evaluate the frequency of periodontal disease in a group of patients with type 1 diabetes mellitus and how this relates with diabetes metabolic control, duration of diabetes, and presence of diabetic complications. Methods: A comparison was made of periodontal parameters (plaque index, bleeding index, pocket depth and attachment loss) in a group of diabetic patients (n=90) versus a group of non-diabetics (n=90). Logistic regression analysis was performed to evaluate relationship between periodontal parameters and degree of metabolic control, the duration of the disease, and the appearance of complications. Results: Diabetics had greater bleeding index (p<0.01), deeper periodontal pockets (p<0.01) and more periodontal attachment loss (p<0.01) than non-diabetics. Deficient metabolic control and presence of diabetic complication were associated with higher bleeding index and pocket depth (p?0.02). Conclusions: Patients with type 1 diabetes appear to show increased periodontal disease susceptibility, particularly those with poorer metabolic control or with diabetic complications

Diseño y validación de un cuestionario para evaluar la planificación cognitiva en niños de 5 a 7 años de edad

Trabajo de InvestigaciónEsta investigación toma como base la planificación debido a la importancia en las funciones ejecutivas, y se propone diseñar un cuestionario que permita evaluar la planificación cognitiva en niños de 5 a 7 años de edad, dirigido a padres de familia, en el cual se generan una serie de indicadores que permiten a los padres identificar comportamientos asociados a ella.57 p.1. RESUMEN 2. ANTECEDENTES TEÓRICOS Y EMPÍRICOS 3. JUSTIFICACIÓN Y PLANTEAMIENTO DEL PROBLEMA DE INVESTIGACIÓN 4. OBJETIVOS 5. VARIABLES 6. MÉTODO 7. RESULTADOS 8. DISCUSIÓN 9. REFERENCIAS 10. APÉNDICEPregradoPsicólog

Dental caries in type 1 diabetics : influence of systemic factors of the disease upon the development of dental caries

Objectives: Diabetes mellitus is one of the most common chronic diseases in the general population. A study is made of the presence of caries in type 1 diabetic patients. The specific aim was to determine whether such patients present a greater incidence of dental caries than non-diabetic individuals. An evaluation was also made of the relationship of caries to salivary flow and to factors inherent to the disease such as the degree of metabolic control, the duration of diabetes, and the existence of chronic complications. Study design: The study comprised 90 type 1 diabetics between 18 and 50 years of age, and a group of non-diabetic controls matched for age and sex. Visual and tactile exploration of the dentition was carried out in all cases. Oral hygiene was rated based on the O?Leary plaque index, and basal (unstimulated) and stimulated salivary flow were evaluated in both groups. In the diabetic group, correlations were established with disease control based on the mean glycosylated hemoglobin (HbA1c) value corresponding to the two years prior to examination; evolution of the disease in years; and the existence of complications such as diabetic neuropathy or retinopathy. Results: Under similar conditions of oral hygiene and salivary flow, the diabetic group showed a higher incidence of caries than the control group (p<0.05). Likewise, on specifically analyzing the diabetic group, metabolic control of the disease, the duration of diabetes, and the existence of complications of the disease exerted an influence upon the development of dental caries. Conclusions: Qualitative salivary studies are advised to better account for this increased incidence of caries in the diabetic population

El patrón de flujos del sector transporte en la ciudad de Armenia 2013-2014

This article is a part of the general review on characterization and behavior of consumer of urban public transportation service, in Armenia city, deparment of Quindio, and is related to one of the three pillars composing the Manheim scheme (Flow Pattern –FP, or demand for a public transport). Bearing in mind that such demand should be met by a good level of trip service, however, this service level in Armenia city has not been sufficiently overseen and regulated, thus producing effects or impact both, on the system and its users, and on the rest of inhabitants, and urban development factors. This fact has translated into various effect on user behavior on roadways, daily mobility, and perception of users on urban transportation service in Armenia city. The research is supported on the consumer theory, and Manheim scheme. It is worth to mention that the other pillars of this scheme, are: the Activity System – AS, and the Transportation System –TS, which, articulated to information collected through surveys applied to family nucleus, (where aspects such genre, age, car possession, causes of use or not use of the service, among other were taken into account), led to analyze and understand people behavior in daily mobility and obtain a full reading on reality of public transportation service in the city, from the offer and demand dimension.El presente artículo se desprende del estudio general sobre la caracterización y comportamiento del consumidor del servicio de transporte público urbano, en la ciudad de Armenia Quindío y hace referencia a uno de los tres pilares que conforman el esquema de Manheim (Patrón de Flujos -PF o demanda por un transporte público). Teniendo como base que dicha demanda debiera ser satisfecha por un buen nivel de servicio de los viajes, empero, este nivel de servicio en la ciudad de Armenia ha tenido poca vigilancia y regulación, produciendo algunos efectos o impactos, tanto sobre el sistema y los usuarios del mismo, como sobre el resto de los habitantes y en los factores de desarrollo urbano. Esto se ha podido traducir en diferentes efectos sobre el comportamiento de los usuarios en las vías, en la movilidad cotidiana y en la percepción que presenta el usuario del servicio de transporte urbano en la ciudad de Armenia.La investigación se sustenta en la teoría del consumidor y en el esquema de manheim. Cabe resaltar que los otros pilares de este esquema, son el Sistema de Actividades (SA) y el Sistema de Transporte (ST), los cuales, articulados con la información obtenida a través de la aplicación de encuestas a núcleos familiares (donde se tuvo en cuenta aspectos como género, edad, posesión de vehículo, motivos del uso y no uso del servicio, entre otros), permitió analizar y entender el comportamiento de las personas en la movilidad cotidiana y obtener una lectura bastante completa de la realidad del servicio de transporte público de la ciudad, desde la dimensión de la oferta y la demanda