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The first investigation of the genomic diversity of individuals buried at Machu Picchu and adjacent places around Cusco, the Inca capital finds that the mitmas - slaves - and members of the empire who were forced to serve elites and lived, worked, and died at Machu Picchu, the renowned 15th century Inca palace in southern Peru, were a diverse community representing many different ethnic groups.
In recent years, there have been efforts to reconsider cancers of the uterine cervix oropharyngeal, penile, vulvar and anal as sexually transmitted diseases.

The reason is because of their link to human papillomavirus (HPV). HPV is everywhere and has been longer than is even known, there are over 100 types, and most of the time if anything happens it is benign lesions such as warts and condyloma. But a few thousand times per year it is more serious and subtypes like HPV16 can lead to malignant transformed cells which may develop into precancerous lesions or even cancer. In about a third of cases those cancers are linked to HPV and an HPV infection can be transmitted during sexual activity.
There is a lot of concern about the ability of ChatGPT to replace lower-skilled workers but it will probably make them better. In the 19th century a phrase went, "God man but Sam Colt made them equal" and ChatGPT could give those without inherent gifts that same leg up soon.

The days when you could seem smart by having a good memory and confident delivery style may be over, which means greater equity for all.
Atherosclerosis, a condition that causes arteries to thicken, is a risk factor for a number of diseases that as a group are the leading cause of death in the U.S. What it really means, why it happens, and why it matters is unclear, since nearly half of Americans are told they have it.

Understanding its progression and possible impact of fatty buildup in the arteries is important, as is calcification. A new pilot is geared toward learning where that calcification comes from, and if perhaps its origin is inside the arteries.
A survey of over one thousand Tinder users found that were not interested in meeting anyone, and nearly two-thirds were already married or "in a relationship."

Instead of being used to find dates, people instead it has a similar appeal as social media - a source of entertainment, distraction and self-esteem.

The data were 1,387 English-speaking Tinder users, ages 17 to 84, asking about their motivations for using the app; the number of matches and offline dates they had; their relationship status; their selectiveness in choosing partners; and, among other factors, psychological measures like impulsivity, depression, loneliness and self-esteem.
Food waste is a major problem in the developed world. People new to buying organic food are annoyed at how quickly it spoils but what if that wilted brown lettuce could be converted into energy?

Anaerobic digestion hasn't been done on a large scale, the numbers don't work, but academics say it could. In a numerical model. The authors looked at supply chain logistics - potential sites, transportation, production, and facility costs, as well as revenue and return on investments.