Sunday 19 May 2019

German startup to offer electric air taxis 'by 2025'

German startup firm Lilium announced Thursday the maiden flight of its all-electric pilotless jet-powered 'air taxi' which it hopes to operate in various cities around the world 'by 2025'.

* This article was originally published here

Researchers unravel mechanisms that control cell size

Working with bacteria, a multidisciplinary team at the University of California San Diego has provided new insight into a longstanding question in science: What are the underlying mechanisms that control the size of cells?

* This article was originally published here

Artificial intelligence shines light on the dark web

Beneath the surface web, the public form of the internet you use daily to check email or read news articles, exists a concealed "dark web." Host to anonymous, password-protected sites, the dark web is where criminal marketplaces thrive in the advertising and selling of weapons, drugs, and trafficked persons. Law enforcement agencies work continuously to stop these activities, but the challenges they face in investigating and prosecuting the real-world people behind the users who post on these sites are tremendous.

* This article was originally published here

Eating ultra-processed foods will make you gain weight. Here's the scientific proof

For four weeks, 20 healthy volunteers checked into a research center hospital and were served a variety of tempting meals: cinnamon french toast, stir-fry beef with broccoli and onions, turkey quesadillas and shrimp scampi. Researchers scrutinized everything that was eaten and came away with the first hard evidence to support a long-held suspicion: Heavily processed foods could be a leading factor in America's obesity epidemic.

* This article was originally published here

Sleep duration tied to adverse measures of glycemia

(HealthDay)—Self-reported short and long sleep are both associated with adverse measures of glycemia among adults with prediabetes, according to a study published online May 10 in Diabetes Care.

* This article was originally published here

Manipulating atoms one at a time with an electron beam

The ultimate degree of control for engineering would be the ability to create and manipulate materials at the most basic level, fabricating devices atom by atom with precise control.

* This article was originally published here

Tobacco and e-cigarette promotions spark teens' use of nicotine products, study finds

Owning items that promote e-cigarettes and other alternative tobacco products doubles the likelihood that a young person will try these products, a new study led by the Stanford University School of Medicine has found. The finding illustrates the influence of such marketing on teenagers.

* This article was originally published here

Button batteries can rapidly damage stomach lining before symptoms appear

Damage to the lining of the stomach can occur quickly when children swallow button batteries; therefore, clinicians should consider prompt endoscopic removal, even when the child is symptom free and the battery has passed safely through the narrow esophagus, according to research presented at Digestive Disease Week (DDW) 2019. The recommendations represent a change from current practice of watching and waiting.

* This article was originally published here

Heroin overdose ED visits decreased from 2017 to 2018

(HealthDay)—From 2017 to 2018, there was a decrease in heroin overdose emergency department visits, although the declines were not consistent among states, according to a study published online May 16 in the American Journal of Public Health.

* This article was originally published here

Guidelines updated for TB screening, treatment in health care workers

(HealthDay)—Guidelines have been updated for screening and treatment for tuberculosis (TB) infection among health care personnel, according to research published in the May 17 issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report.

* This article was originally published here

North carolina sues electronic cigarette maker JUUL

(HealthDay)—North Carolina is suing electronic-cigarette manufacturer JUUL for allegedly marketing its products to children and misleading the public about the health risks of the products. This lawsuit is the first filed by a state over JUUL's alleged marketing toward teens, CNN reported.

* This article was originally published here

Life goes on under cloud of smog in Mexico City

Scientists say breathing the heavily polluted air in Mexico City these days is like smoking somewhere between a quarter- and a half-pack of cigarettes a day.

* This article was originally published here

Exploring people's perception of geometric features, personalities and emotions in videos with virtual humans

Researchers at Pontifical Catholic University of Rio Grande do Sul have recently carried out a study aimed at evaluating people's perceptions of geometric features, personalities and emotions presented in video sequences with virtual humans. Their study, outlined in a paper pre-published on arXiv, merges computer science tools with psychology research practices.

* This article was originally published here