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Tenga en cuenta los picos que adornan la superficie exterior del virus, que imparten el aspecto de una corona que rodea al virión, cuando se observa al microscopio electrónico. Un nuevo coronavirus, denominado coronavirus 2 del síndrome respiratorio agudo severo (SARS-CoV-2), fue identificado como la causa de un brote de enfermedad ...
On 16 July, PNG confirmed four new cases of COVID-19; they are staff from the main laboratory that tests for the virus. [25] On 18 July, PNG confirmed its 16th case of COVID-19. [26] On 20 July, PNG confirmed two new cases of COVID-19. [27] On 21 July, PNG confirmed eight new cases of COVID-19. [28] On 22 July, PNG confirmed three new cases of ...
Kirlian photograph of two coins. Kirlian photography is a collection of photographic techniques used to capture the phenomenon of electrical coronal discharges.It is named after Soviet scientist Semyon Kirlian, who, in 1939, accidentally discovered that if an object on a photographic plate is connected to a high-voltage source, an image is produced on the photographic plate. [1]
The human coronavirus NL63 shared a common ancestor with a bat coronavirus (ARCoV.2) between 1190 and 1449 CE. [76] The human coronavirus 229E shared a common ancestor with a bat coronavirus (GhanaGrp1 Bt CoV) between 1686 and 1800 CE. [77] More recently, alpaca coronavirus and human coronavirus 229E diverged sometime before 1960. [78]
Consumo de energía y emisiones de CO 2 del autotransporte en México y Escenarios de Mitigación, Ávila-Solís JC, Sheinbaum-Pardo C. 2016. Decomposition analysis from demand services to material production: The case of CO 2 emissions from steel produced for automobiles in Mexico, Applied Energy, 174: 245–255, Sheinbaum-Pardo C. 2016.
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Photo of Juventino Rosas, in 1890. Rosas was born in Santa Cruz, Guanajuato, later renamed Santa Cruz de Galeana, Guanajuato, and still later into Santa Cruz de Juventino Rosas. [1] Rosas began his musical career as a street musician, playing with dance music bands in Mexico City.