Laser-powered 'tweezers' reveal universal mechanism viruses use to package up DNA
Researchers have used laser-powered 'optical tweezers' to reveal a universal motor mechanism used by viruses for packaging their DNA into infectious particles.
Researchers have used laser-powered 'optical tweezers' to reveal a universal motor mechanism used by viruses for packaging their DNA into infectious particles.
Cell & Microbiology
Nov 21, 2023
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Flagellated bacteria are propelled by the rotation of helical flagellar filaments, each with a flagellar motor at its base. Taking Escherichia coli (E. coli) as an example, each cell has 3–7 flagella whose rotation as a ...
Cell & Microbiology
Nov 21, 2023
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The road transport system is responsible for almost 20% of Australia's fossil fuel emissions. Transport emissions have increased nearly 60% since 1990 and Australia's per capita road transport emissions are 45% higher than ...
Environment
Nov 15, 2023
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The space shuttle Endeavour's twin giant rockets will be hoisted by crane next week and affixed into place atop the craft's aft skirts in a first step of assembling a full-stack configuration of the shuttle at the future ...
Space Exploration
Nov 4, 2023
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Two giant rocket motors required to display the retired NASA space shuttle Endeavour as if it's about to blast off arrived Wednesday at a Los Angeles museum, completing their long journey from the Mojave Desert.
Space Exploration
Oct 11, 2023
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Every motor we use needs a magnet. University of Manitoba researcher Rachel Nickel is studying how rust could make those magnets cheaper and easier to produce.
Nanophysics
Oct 5, 2023
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Researchers from the Center for Injury Research and Prevention (CIRP) at Children's Hospital of Philadelphia (CHOP) and the Stuart Weitzman School of Design at the University of Pennsylvania have found that teenagers living ...
Social Sciences
Oct 4, 2023
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In 2021, young drivers under 26 made up just 14% of total drivers on NSW roads, but sadly represented almost a quarter of the state's road fatalities, according to Transport for NSW.
Social Sciences
Sep 29, 2023
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1
A research group led by Professor Emeritus Michio Homma (he, him) and Professor Seiji Kojima (he, him) of the Graduate School of Science at Nagoya University, in collaboration with Osaka University and Nagahama Institute ...
Bio & Medicine
Sep 20, 2023
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23
A University of Liverpool researcher has contributed to new research that demonstrates a completely novel type of molecular motor.
Biochemistry
Sep 7, 2023
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41
A motorcycle (also called a motorbike, bike, or cycle) is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.
Motorcycles are one of the most affordable forms of motorised transport in many parts of the world and, for most of the world's population, they are also the most common type of motor vehicle. There are around 200 million motorcycles (including mopeds, motor scooters, motorised bicycles, and other powered two and three-wheelers) in use worldwide, or about 33 motorcycles per 1000 people. This compares to around 590 million cars, or about 91 per 1000 people. Most of the motorcycles, 58%, are in the developing countries of Asia — Southern and Eastern Asia, and the Asia Pacific countries, excluding Japan — while 33% of the cars (195 million) are concentrated in the United States and Japan. In 2006 China had 54 million motorcycles in use and an annual production of 22 million units. As of 2002[update], India with an estimated 37 million motorcycles/mopeds was home to the largest number of motorised two wheelers in the world. China came a close second with 34 million motorcycles/mopeds.
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