A study carried out by scientists from the University of Illinois and published in the scientific journal First Monday on "the geography of Twitter" reveals that the city that generates the most tweets in the world is Jakarta (2.86%), followed by New York (2.65), Sao Paulo (2.62), Kuala Lumpur (2.10) and, in fifth position, Paris (2.03). The rest of the top ten is for Istanbul (1.60), London (1.57), Rio de Janeiro (1.39), Chicago (1.28) and, in tenth position, Madrid (1.17). The analysis is based on 150 billion georeferenced messages sent through the microblogging platform. Tweets sent without data on the user's location were not included in the study.
Scientists from the Carlos III University of Madrid (UC3M) have developed a system based on augmented reality that allows the teacher, thanks to smart glasses, to view notes or comments on the content of the class and check if their students understand the explanations or, on the contrary, they have doubts or difficulties.
Until recently, it was thought that menopause, a period in women's lives when they stop producing eggs and which seems to be unique to humans, was an evolutionary strategy aimed at preventing women from reproducing after a certain age in order to that, in this way, they would act as grandmothers and take care of their grandchildren (the "grandmother effect"). But a team of biologists from McMaster University, led by Rama Singh, argue that this theory makes no sense from an evolutionary point of view and claims to have found a valid alternative.
A Spanish consortium coordinated by the Higher Council for Scientific Research (CSIC) has been one of the 23 classified to participate in the penultimate phase of the challenge organized by the US Department of Defense (DARPA Virtual Robotics Challenge, for its name in English) to design rescue droids.
"Black clouds over Spanish science". It is the descriptive title of an article published today in the journal Science by three Spanish researchers to denounce that the Spanish Strategy for Science and Technology for the period 2013-2020 focuses more on technology transfer and innovation than on quality research, and that with this approach, Spanish science is damaged in a perhaps irreversible way.
A new study published in the journal PLOS ONE reveals that there is a link between the geographical altitude of a place and the way its inhabitants speak. Specifically, populations that live in higher regions tend to speak languages in which ejection consonants predominate, that is, they occur when a sudden opening of the glottis expels previously accumulated air. There are ejection consonants in 20% of the world's languages, including Zulu.
Until a few years ago it was thought that, during adult life, the brain does not produce new neurons. However, this theory is not true, and now a team of scientists from the Karolinska Medical Institute (Sweden) has designed a technique based on the measurement of carbon 14 to determine how many cells are generated per day in the human brain.
The journal 'Nature Genetics' publishes this week the genome sequencing of a female duck. The work, led by the University of Pekin (China), identifies the genetic factors that influence the response of waterfowl to infection with avian influenza subtype H5N1, which has contributed to creating widespread outbreaks in poultry. The duck's immune system allows it to be infected with bird flu and to remain in many cases asymptomatic.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
