Tuesday October 23, 2018
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This new technology will help you brew tea three times faster

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By Newsgram Staff Writer

Scientists at Drexel University in Pennsylvania have developed a technology that can heat water faster up to three times. This can be really helpful in conserving energy in industrial power plants or large-scale electronic cooling systems. It can also be used to make tea quickly, technically speaking.

The air bubbles created while heating water temporarily insulate heating elements from the surrounding water, slowing down the transfer of heat. The scientists have found that the size of these bubbles can be reduced by coating a heating element with a virus found on tobacco plants.

The reduction in bubble size will also prevent ‘critical heat flux’ caused when bubbles merge into a blanket surrounding the element hampering the transfer heat to the water.

‘What happens then is the dry surface gets hotter and hotter, like a pan on the stove without water in it. This failure can lead to the simple destruction of electronic components, or in power plant cooling applications, the catastrophic meltdown of a nuclear reactor.’  Matthew McCarthy, an engineer at Drexel University was quoted in the PSFK magazine.

Scientists had been looking for ways to develop a surface that repels bubbles and keep the boiling surface wet. McCarthy’s team found that tobacco mosaic virus was perfect for the purpose.

They have genetically modified the virus so that it can attach itself to any surface. Once the virus is attached to the surface, it is coated with a microscopically thin layer of nickel to make the virus inert.  This forms a sort of metallic grass which can wick moisture to the surface and repel bubbles.

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WHO Vows For Broader Action Against Tobacco

To prevent further interference by tobacco industry in public health policies, the strategy requires parties to the treaty to protect national public health policies "from commercial and other vested interests of the tobacco industry."

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WHO
WHO vows tighter, broader action against tobacco, industry interference.

The World Health Organization (WHO) unveiled a global strategy on Saturday to scale up the tobacco control agenda over the next few years and to prevent further interference by tobacco industry in public health policies.

The strategy, titled the Medium-Term Strategic Framework (MTSF), aims to strengthen implementation of the WHO Framework Convention for Tobacco Control (FCTC), with a roadmap to guide the work of the convention parties, the secretariat and other stakeholders with regards to tobacco control from 2019 to 2025, Xinhua reported.

“The adoption of this strategy marks a key milestone in strengthening the FCTC,” said Vera Luiza da Costa e Silva, head of the WHO FCTC Secretariat. “This strategy provides a very clear path forward, with priorities and objectives to reinforce government policies and accelerate global action for more effective implementation of the tobacco control treaty.”

The strategy was concluded during the eighth session (COP8) of the FCTC, which brought together over 1,200 participants, including delegations from 148 parties to the global tobacco control treaty and representatives of UN agencies, other intergovernmental organisations and civil society.

They also agreed to maximize transparency to protect FCTC related sessions and proceedings from the intrusion of tobacco industry representatives and interests.

WHO
Director-General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus gives a news conference at the United Nations in Geneva, Switzerland, VOA

“More than ever, we need to stay the course and strengthen our commitment to ensure that FCTC efforts to protect and promote public health and sustainable development are not hijacked by the tobacco industry,” Costa e Silva said. “We must yield no ground to the tobacco industry.”

To prevent further interference by tobacco industry in public health policies, the strategy requires parties to the treaty to protect national public health policies “from commercial and other vested interests of the tobacco industry.”

In addition to tighter control actions, the parties also addressed the need for tobacco control efforts to integrate strategies to combat the destructive impacts of tobacco on the environment and sustainable development.

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Since it came into force in 2005, the FCTC has resulted in national strategies and legislation that have introduced health warning on packages of tobacco and comprehensive bans on tobacco advertising, promotion and sponsorship.

As the only existing global intergovernmental meeting exclusively devoted to tobacco control, the FCTC COP has served as a platform for policy formulation and the adoption of implementation mechanisms by the parties to the convention. (IANS)

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