Comtuter and Internet News Channel
Scientists found in human DNA evidence that evolutionary changes happen to us right now. The results showed that the strongest mutations affect heart function and reproductive function.
Genetics from the University of Queensland (Australia) analyzed DNA data from 126 545 people in a database of anonymous health data in the UK. Having studied the genomes of people of different generations, researchers said they found signs of negative selection (removal of deleterious gene variants) on several grounds. The most notable changes were associated with cardiovascular function and reproductive function. There have been changes to the size of waist circumference and ratio of waist and hip in General, because excess fat around the waist was associated with increased risk of cardiovascular disease. Also they found signs of changes in blood pressure. Age of women in the period of puberty, first birth and menopause showed noticeable fluctuations.
Scientists say that evolutionary changes occur frequently, but not all of them take root completely. For the evolutionary development of some features requires about a million years. The purpose of the study was not to determine the exact changes of the genome, but thought that we will be able to learn more about evolution and how selection works.
The team of engineers at Nanyang technological University in Singapore was able to program two robotic mechanism so that they were able to collect a chair from the local IKEA.
Researchers have used two robotic arms that are usually used in factories. A separate part of the chair was laid out in random order, as noted by the authors. Using 3D cameras and force sensors pair of hands gathered up the chair a little more than 20 minutes.
The complexity of the experiment lied in the fact that such industrial robots usually operate with a very precise and pre-defined templates. They are not designed to perform small movements and control the amount of effort force. So the engineers installed it on the robot force sensors that prevented them to split parts of the chair. Scientists also had to develop a tight algorithm and a clear sequence of actions, so it is unlikely that in the near future robots will be massively used to build furniture.
Photo: Nanyang Technological University (NTU), Singapore
Engineers of the Federal Polytechnic school of Lausanne in Switzerland developed FlyJacket — an exoskeleton that allows the user to control an unmanned aerial vehicle. Costume includes VR goggles, gloves and soft top case, which sinhroniziruete human movement with the drone. To manage the user need to raise their hands. The drone will move, given all the movements of the user, and mounted it on the camera broadcasts video on the VR glasses.
The exoskeleton is equipped with motion sensors and a special hand, if in the process of “flying” the user will get tired. The costume can capture traffic and convert them into turns a drone. Researchers believe that the project has commercial potential. Costume made of light and inexpensive materials, it fits people of different sizes and fits comfortably in a backpack.
Now engineers are working on additional features of the costume and improve the team, he can give the drone. The researchers want to achieve tactile feedback to improve the efficiency of the flight.
Photo: EPFL LIS