Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: A simple staining method for bacteria that is usually successful, even when the ``positive staining'' methods detailed below fail, is to use a negative stain. This can be achieved by smearing the sample onto the slide and then applying nigrosin (a black synthetic dye) or India ink (an aqueous suspension of carbon particles). After drying, the microorganisms may be viewed in bright field microscopy as lighter inclusions well-contrasted against the dark environment surrounding them. Note: negative staining is a mild technique that may not destroy the microorganisms, and is therefore unsuitable for studying pathogens.
 Question: could any dye available in the microbiology lab be used in place of nigrosin for negative staining Context: The Lion King is an upcoming American epic musical drama film, directed and co-produced by Jon Favreau, produced by Walt Disney Pictures, and written by Jeff Nathanson. It is the remake of Disney's 1994 animated film of the same name and inspired in part by William Shakespeare's Hamlet. The film stars the voices of Donald Glover, Beyoncé, James Earl Jones, Chiwetel Ejiofor, Billy Eichner, Seth Rogen, John Oliver, John Kani, Alfre Woodard, Eric Andre, Florence Kasumba, Keegan-Michael Key, J.D. McCrary and Shahadi Wright Joseph. It is set to be released on July 19, 2019.
 Question: will the live action lion king be a musical Context: Cops (stylized as COPS) is an American half-hour documentary/reality legal series that follows police officers, constables, sheriff's deputies, federal agents, and state troopers during patrols and other police activities including prostitution and narcotics stings. It is one of the longest-running television programs in the United States and in May 2011 became the longest-running show on Fox with the announcement that America's Most Wanted was being canceled after 23 years (that show's host, John Walsh also appeared many times on Cops). In 2013, the program moved from Fox to the cable network Spike, now known as Paramount Network. Cops entered its 31st season on June 4, 2018.
 Question: is the show cops still on the air Context: The EF of the left heart, known as the left ventricular ejection fraction (LVEF), is calculated by dividing the volume of blood pumped from the left ventricle per beat (stroke volume) by the volume of blood collected in the left ventricle at the end of diastolic filling (end-diastolic volume). LVEF is an indicator of the effectiveness of pumping into the systemic circulation. The EF of the right heart, or right ventricular ejection fraction (RVEF), is a measure of the efficiency of pumping into the pulmonary circulation. A heart which cannot pump sufficient blood to meet the body's requirements (i.e., heart failure) will often, but not invariably, have a reduced ventricular ejection fraction.
 Question: is ejection fraction the same as stroke volume
Yes
No
Yes
Yes
No