mass extinction Also known as: Permian-Triassic extinction, end-Permian extinction Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that...
of destination on dispatches), the value of the goods, the quantity of the goods (net mass and supplementary unit), and the nature of the transaction. Countries/regions can also collect optional elements under various conditions. Some optional elements are the country/region of origin, the ...
the flow (arrival or dispatch), the eight-digit commodity code, the partner member state (member state of consignment on arrivals and member state of destination on dispatches), the value of the goods, the quantity of the goods (net mass and supplementary unit), and the nature of the trans...
As a critical indictor in the Battery Management System (BMS), State of Charge (SOC) is closely related to the reliable and safe operation of lithium-ion (Li-ion) batteries. Model-based methods are an effective solution for accurate and robust SOC estima
The study of compact object populations has come a long way since the determination of the mass of the Hulse–Taylor pulsar, and we now count on more than 150 known Galactic neutron stars and black hole masses, as well as another 180 objects from binary mergers detected from gravitational-wav...
A special case of breast mass is the situation in which one breast is more dense than the other. The cause of unilateral increase in breast density can sometimes be ascertained by means of the medical history. Breast irradiation can cause this pattern. A similar pattern can be caused by diff...
Causes of World War 1The first world war began in August 1914. It was directly triggered by the assassination of the Austrian archduke, Franz Ferdinand, and his wife, on 28th June 1914 by Bosnian revolutionary, Gavrilo Princip. This event was, however, simply the trigger that set off ...
Following the Omicron outbreak on Sunday, Tianjin immediately took action to block the spread of the epidemic, asking local residents not to leave the city unless necessary. The second round of citywide mass nucleic acid testing was launched on Wednesday, two days after the first round, amid eff...
the hospital, over 80%, had severe and complex medical conditions. This is reflected in the hospital’s high Case Mix Index (CMI) of 1.52, which places it among the top in the country. The hospital’s expertise in minimally invasive surgeries is evident, with 25.24% of all surgeries ...
The mass spectrometry data of metabolites analysis showed that aconitine produces a variety of metabolites with less toxicity under the hydrolysis by gut microbiota, such as new monoesters (benzoylaconitine), and alkanolamine (aconine) alkaloids (Sui et al., 2013) (Fig. 2). Moreover, the ...