Examen de la relación entre usos de tierras comerciales y residenciales y consumo de energía usando Gis y modelo Vickor (estudio de caso: Distrito 6)

The city is a living thing whose population determines its future. Given its administrative and political pole in Iran, Tehran has attracted a significant population and District 6, given the establishment of commercial-administrative centers is the administrative pole. The purpose of the study was to examine and compare the energy consumption in the field of transportation and administrative-commercial buildings. For this purpose, the research method was based on a researcher-made questionnaire based on 6 main variables and 49 items. The sample size of 384 people was selected to reach the results using Cochran's test to answer. The study was applied in terms of purpose and descriptive-analytical in terms of nature. Data collection was based on library documents, and Vikor test was used to rank energy consumption and reach the final results. It has to be acknowledged that the results showed a significant relationship between social and economic factors in the field of transportation and residential and commercial areas until the end of January 2019. Other cases followed a 5-year pattern with a not-so-low consumption rate. Moreover, there was a significant relationship between pollutant production and energy consumption in the second quarter of each year. The statistical results based on the Vickor model showed that the first and second conditions of the above statistical test were confirmed and Districts 2, 3 and 8 have the best rank in terms of Q value, respectively, and the final result is correct.La ciudad es un ser vivo cuya población determina su futuro. Dado su polo administrativo y político en Irán, Teherán ha atraído una población significativa y el Distrito 6 dado el establecimiento de centros comerciales-administrativos es el polo administrativo. El propósito del estudio fue examinar y comparar el consumo de energía en el ámbito del transporte y edificios administrativos-comerciales. Para ello, el método de investigación se basó en un cuestionario elaborado por el investigador basado en 6 variables principales y 49 ítems y para llegar a los resultados se seleccionó el tamaño de muestra de 384 personas mediante la prueba de Cochran para responder. El estudio se aplicó en términos de propósito y descriptivo-analítico en términos de naturaleza. La recopilación de datos se basó en documentos de la biblioteca y se utilizó la prueba de Vikor para clasificar el consumo de energía y llegar a los resultados finales. Hay que reconocer que los resultados mostraron una relación significativa entre los factores sociales y económicos en el ámbito del transporte y las áreas residenciales y comerciales que hasta finales de enero de 2019. Otros casos siguieron un patrón de 5 años con un no tan bajo tasa de consumo. Además, hubo una relación significativa entre la producción de contaminantes y el consumo de energía en el segundo trimestre de cada año. Los resultados estadísticos basados ​​en el modelo de Vickor mostraron que la primera y segunda condiciones de la prueba estadística anterior fueron confirmadas y los Distritos 2, 3 y 8 tienen el mejor rango en términos de valor Q, respectivamente, y el resultado final es correcto

Production of hepatocyte-like cells from human umbilical vein mesenchymal stem cells

The human umbilical vein, as a readily available stem cell source, is a good alternative to harvest mesenchymal stem cells. Human umbilical cord vein mesenchymal stem cells have recently been isolated and have demonstrated the ability to differentiate into various cell types such as fat, bone, cartilage and neuronal cells. In this study, we have investigated whether human umbilical cord vein mesenchymal stem cells are also able to differentiate into hepatocyte-like cells. Hepatic differentiation was performed with a 2-step protocol and the use of hepatocyte growth factor and oncostatin M for cell culture. During four weeks of induction, most cells displayed a cuboidal morphology. Immunological analysis indicated that umbilical cord vein mesenchymal stem cells-derived hepatocyte-like cells expressed liver-specific protein markers such as albumin and cytokeratin-18. The hepatocyte-like cells also displayed several characteristics of hepatocytes, including expression of transthyretin, glucose 6-phosphatase, cytokeratin-8,18, alpha-fetoprotein, hepatocyte nuclear factor-3β and albumin. The result of indocyanine green cell uptake, as a test substance to evaluate hepatocyte-like cell function, was positive for differentiated cells. Glycogen storage was examined by periodic acid-Schiff staining. Accumulation of intracellular glycogen was detected in the hepatocyte-like cells. Based on these observations, we have concluded that umbilical cord vein mesenchymal stem cells are endowed with hepatogenic potential and may provide a stem cell source to be used as cell therapy for liver diseases

The urgent need for integrated science to fight COVID-19 pandemic and beyond

The COVID-19 pandemic has become the leading societal concern. The pandemic has shown that the public health concern is not only a medical problem, but also afects society as a whole; so, it has also become the leading scientifc concern. We discuss in this treatise the importance of bringing the world’s scientists together to fnd efective solu‑ tions for controlling the pandemic. By applying novel research frameworks, interdisciplinary collaboration promises to manage the pandemic’s consequences and prevent recurrences of similar pandemics

The urgent need for integrated science to fight COVID-19 pandemic and beyond.

The COVID-19 pandemic has become the leading societal concern. The pandemic has shown that the public health concern is not only a medical problem, but also affects society as a whole; so, it has also become the leading scientific concern. We discuss in this treatise the importance of bringing the world's scientists together to find effective solutions for controlling the pandemic. By applying novel research frameworks, interdisciplinary collaboration promises to manage the pandemic's consequences and prevent recurrences of similar pandemics

The urgent need for integrated science to fight COVID-19 pandemic and beyond

The COVID-19 pandemic has become the leading societal concern. The pandemic has shown that the public health concern is not only a medical problem, but also affects society as a whole; so, it has also become the leading scientific concern. We discuss in this treatise the importance of bringing the world’s scientists together to find effective solutions for controlling the pandemic. By applying novel research frameworks, interdisciplinary collaboration promises to manage the pandemic’s consequences and prevent recurrences of similar pandemics.Science, Faculty ofNon UBCOceans and Fisheries, Institute for theReviewedFacult

The urgent need for integrated science to fight COVID-19 pandemic and beyond

The COVID-19 pandemic has become the leading societal concern. The pandemic has shown that the public health concern is not only a medical problem, but also afects society as a whole; so, it has also become the leading scientifc concern. We discuss in this treatise the importance of bringing the world’s scientists together to fnd efective solu‑ tions for controlling the pandemic. By applying novel research frameworks, interdisciplinary collaboration promises to manage the pandemic’s consequences and prevent recurrences of similar pandemics