General Stations: 1 to 2 (Health Risk: Low)

Roadside Stations: 2 (Health Risk: Low)

(Rice University) Rice University researchers have integrated high-efficiency solar cells and electrode catalysts into an efficient, low-cost device that splits water to produce hydrogen fuel.

(Fundação de Amparo à Pesquisa do Estado de São Paulo) Thanks to its magnetic properties, the material -- zinc-doped manganese chromite -- can be used in a range of products, from gas sensors to data storage devices.

(College of Engineering, Carnegie Mellon University) Carnegie Mellon University's Maarten de Boer and Gianluca Piazza are developing reliable, mechanical switches the size of a DNA molecule, thanks to a $2M LEAP-HI grant from the National Science Foundation.

(University of Montreal) A chemistry professor at Université de Montréal has developed a new test using gold nanoparticles to establish the flavour profile of maple syrup and help producers evaluate its quality.

(University of Southampton) Scientists have published highly detailed images of lab-grown neurons using Extreme Ultraviolet radiation that could aid the analysis of neurodegenerative diseases.

(Dartmouth College) Annual award supports the research and teaching careers of talented young faculty in the chemical sciences.

(University of South Florida (USF Health)) A new preclinical study by researchers at the University of South Florida Health (USF Health) Morsani College of Medicine and Johns Hopkins University School of Medicine offers promise of a specific treatment for NEC, a rare inflammatory bowel disease that is a leading cause of death in premature infants. The team found that inhibiting the inflammatory and blood-clotting molecule thrombin with targeted nanotherapy can protect against NEC-like injury in newborn mice.

(DGIST (Daegu Gyeongbuk Institute of Science and Technology)) A drug-loaded microrobotic needle effectively targets and remains attached to cancerous tissue in lab experiments without needing continuous application of a magnetic field, allowing more precise drug delivery. The details were published by researchers at DGIST's Microrobot Research Center in Korea and colleagues in the journal Advanced Healthcare Materials.

(Ecole Polytechnique Fédérale de Lausanne) EPFL chemists have developed sponges to capture various target substances, like gold, mercury and lead, dissolved in solution. The sponges are actually porous crystals called metal organic frameworks, and now one exists for capturing toxic hexavalent chromium from water.

(University of Science and Technology of China) Researchers from University of science and technology of China has shed new lights on the topic of solid-phase ion migration. Researchers demonstrated a unique in-situ strategy for visualizing the dynamic solid-phase ion migration between nanostructures with nanogap at the atomic scale. The research article entitled "Real-Time Visualization of Solid-Phase Ion Migration Kinetics on Nanowire Monolayer" was published in Journal of the American Chemical Society on April 29th.

(University of Jyväskylä - Jyväskylän yliopisto) Researchers at the universities of Jyvaskyla and Xiamen discovered a novel way to make functional macroscopic crystalline materials out of nanometer-size 34-atom silver-gold intermetallic clusters. The cluster material has a highly anisotropic electrical conductivity, being a semiconductor in one direction and an electrical insulator in other directions. The research was published in Nature Communications on May 6, 2020.

(Arizona State University) Cun-Zheng Ning, a professor of electrical engineering in the Ira A. Fulton Schools of Engineering at Arizona State University, and collaborators from Tsinghua University in China discovered a process of physics that enables low-power nanolasers to be produced in 2D semiconductor materials. Understanding the physics behind lasers at nanoscale and how they interact with semiconductors can have major implications for high-speed communication channels for supercomputers and data centers.

(Georgia Institute of Technology) The science behind sticky gecko's feet lets gecko adhesion materials pick up about anything. But cost-effective mass production of the materials was out of reach until now. A new method of making them could usher the spread of gecko-inspired grabbers to assembly lines and homes.

(Johannes Gutenberg Universitaet Mainz) Scientists at Johannes Gutenberg University Mainz (JGU) and the Helmholtz Institute Mainz (HIM) in Germany have presented a non-contact method for detecting the state of charge and any defects in lithium-ion batteries.

Claus Sorensen
Represent. Theory 24 (2020), 151-177.
Abstract, references and article information

(To watch the full press conference with sign language interpretation, click here.)

Chief Executive Carrie Lam today said because Hong Kong has not reported a local COVID-19 case for over two weeks and imported cases are low, some anti-epidemic measures can be lifted.

During a press conference, Mrs Lam outlined that unlike some European countries, Hong Kong did not need to go into lockdown to contain the spread of the disease.

“Hong Kong has never gone into a stage of a complete city lockdown. In some of the European countries where they practise a city lockdown, residents are simply not allowed to leave their homes, except for some very essential purposes. But we have never adopted that practice.

“And in fact, many renowned experts are now trying to study our situation - why does Hong Kong succeed in keeping the confirmed cases at a low level without drastic measures like a complete city lockdown. And I do think that is a very interesting topic for further research.”

Mrs Lam noted that the Government had adopted the “suppress and lift” strategy under which restrictions are implemented and lifted in accordance with the infection situation.

“The strategy that Hong Kong has been adopting - and advocated by some of our experts - is what we call a ‘suppress and lift strategy’.

“So in light of the number of confirmed cases and likelihood of the spread of the disease in the community, we will have to suppress in order to make sure that there will be no surge in the number of confirmed cases as we have seen in some neighbouring regions.

“When the situation of the infection stabilises, that is the time for lifting, that is, loosening a bit so that society can operate more normally, especially for the businesses and for individuals’ behaviour.”

The Chief Executive said the Government still needed to monitor the COVID-19 situation closely, even though it was in the stage of lifting restrictions.

“We are now right in the stage of lifting because we have not had a local case for 16 days already and the number of imported cases is very, very low.

“We are now quite confident that the system of testing and holding that we have put in place for all arrivals from overseas would enable us to control the number of imported cases. So this is a time for lifting and this afternoon we have announced a number of lifting measures.

“If the situation continues to stay at the current level - no local cases, very few imported cases - then at the end of the 14-day period, that is May 22, of course that would be the time for more relaxation.”

Mrs Lam added that if a local case suddenly surfaced, Hong Kong may have to go back to some suppression measures, which was why the Government had to monitor the situation closely so it could take the necessary and pertinent response measures.

(To watch the full press conference with sign language interpretation, click here.)

The relaxation of anti-epidemic measures is a step in the right direction, Chief Executive Carrie Lam said today.

Mrs Lam made the statement at a press conference this afternoon.

She said the Government will relax the requirement limiting group gatherings in public places to a maximum of four people. Starting from Friday, up to eight people can gather in public places.

"So raising the number from four to eight for the catering business and also for the prohibition against group gatherings under Cap 599G is not an exact science, but this is a step in the right direction of relaxation.

"Maybe in another 14 days’ time we will raise the number of eight to 10, to 12, to 15 and so on."

Regarding bars and pubs, Mrs Lam said these venues will be able to reopen but the Government will put in place requirements to prevent physical interactions.

"We have decided that perhaps to strike a pragmatic balance is to allow them to reopen for business but to put in far more stringent requirements."

Such requirements include no live music, band performances or dancing in bar premises.

"That would be another way to keep the social distance and prevent as much as possible physical interactions."

Click here for the latest measures.

(To watch the full press conference with sign language interpretation, click here.)

Secretary for Education Kevin Yeung today said the Government is confident that classes can resume on May 27.

Mr Yeung made the statement at a press conference this afternoon.

He said: “We are not announcing class resumption right away. We are giving advance notice of about three weeks for all the stakeholders to get prepared for the school resumption.”

The Government will continue to monitor the situation during this period and adjust the school resumption plan if necessary, he added.

"At this stage we are still pretty confident that we should be able to resume classes on May 27."

(To watch the full press conference with sign language interpretation, click here.)

Chief Executive Carrie Lam today said that Hong Kong’s needy and disadvantaged will receive masks as part of the Government’s new mask distribution programme.

Mrs Lam made the announcement during a press conference this afternoon and explained that millions of donated masks will also be distributed to those in need.

“I have outlined six measures to distribute masks freely to the people of Hong Kong, and of course in so doing, we will take special account of the disadvantaged, the elderly and street sleepers. 

“So apart from being a member of the Hong Kong population, they will receive reusable masks. They will receive disposable masks. We have this mask distribution program together with a large number of non-governmental organisations, charity groups and self-help groups.

“So we will continue to work with them to distribute another three million masks, which were donated to us.”

Mrs Lam emphasised that should there be a shortage of masks set aside for the needy, the Government will use its own supply to cover the shortfall.

“I am announcing that if we run out of donated masks, but there is still a need from this disadvantaged groups, we will use the government masks - the masks that we procured which are supposed to be for our own use - and share these with the needy groups in society.

“That's a way to ensure that, in a public health situation that we are now in, the needs of the disadvantaged groups will be fully taken care of.”

In addition to distributing donated masks, the Government announced other measures on mask supplies that include handing out single-use and reusable masks to all Hong Kong residents and students in need.

Such measures also call for increasing the supply of masks to staff of elderly homes and cleaning workers employed by the Government's outsourced service contractors, as well as providing masks to private medical practitioners.

The Government will distribute free reusable face masks to all Hong Kong citizens, the Innovation & Technology Bureau announced today.

The CuMask, made with six layers and special ergonomic features, was developed by the Hong Kong Research Institute of Textiles & Apparel.

Two of its layers contain copper which is capable of immobilising bacteria, common viruses and other harmful substances.

The mask complies with the American Society for Testing & Materials F2100 Level 1 Standard in terms of particle and bacterial filtration efficiency, resistance to penetration by synthetic blood, and flammability and pressure resistance.

It is also reusable for up to 60 washes.

The bureau said, except for babies and infants, all holders of valid Hong Kong identity cards are eligible to obtain a mask.

Citizens can register online from 7am tomorrow till June 6. Each registration can cater for a maximum of six persons.

Upon successful registration, the mask will be delivered to the door by Hongkong Post within two weeks.

Primary and kindergarten students will each be given two masks, which will be delivered directly to children's schools. Parents do not have to register.

The Government has also arranged to deliver over 140,000 of the masks to residential homes and social welfare institutions for their distribution to those including elderly and the homeless.

Click here for registration details.

The Innovation & Technology Bureau announced that as of 3pm today, the CuMask online registration system had received over 500,000 registrations, covering close to 1.38 million registrants in total. 

The bureau also responded to reports concerning the purpose of information collection and security of the registration system.

It noted that information provided by citizens in obtaining the masks will not be used for other purposes and that the Government will ensure the retention period of the personal data is no longer than the time required for the purposes for which the data is used.

The bureau pointed out that the registration system for masks operates on the Government's private cloud to ensure the stability and security of the system. 

In order to prevent intrusion and data leakage, multiple security measures have been put in place in compliance with the Government Information Technology Security Policy & Guidelines. 

These measures include a firewall, intrusion detection, anti-bot technology and installation of the latest anti-virus software with regular updates of virus definitions. 

The service has also passed an information security risk assessment and audit before launch.

The Privacy Commissioner for Personal Data has been consulted on the system's personal data processing arrangements. 

The system has also passed an independent third-party privacy impact assessment to ensure that the relevant service and system comply with the Personal Data (Privacy) Ordinance.

The bureau further explained that citizens need to provide their Hong Kong identity card number and date of birth for the registration system to match data with the Immigration Department’s system.

The process will be used to ascertain whether the registrant is a Hong Kong resident and check against any duplicated registrations. 

The local mobile number serves as a way to receive SMS messages on registration results and delivery, while the name and local address of the main registrant serves to verify whether the address exists and for arranging delivery. 

The bureau emphasised that the purposes of information collection have been clearly displayed on the front of the registration page for citizens to browse before registration.

Meanwhile, the bureau clarified the online rumours regarding the manufacturer of CuMask, noting that the CuMask is not manufactured by the Sun Hing Knitting Factory Limited nor Nan Fung Group.

The procurement of raw materials, coordination of production, sterilisation and packaging of the CuMask are being handled by the Hong Kong Research Institute of Textiles & Apparel, it said.

The bureau expressed regret about the rumours.

Chief Executive Carrie Lam inspected one of the CuMask production sites in Tsuen Wan today and expressed gratitude to those manufacturing the reusable masks for Hong Kong residents to fight against the COVID-19 epidemic.

She chatted with the staff and noted that many of them are retired textile industry workers who have re-joined the production workforce to combat the virus.

Mrs Lam praised them for their commitment to serving the community and thanked them for their hard work.

The masks produced in the workshop will be delivered to a clean workspace for sterilising with ozone and packing before distribution. There is no need to wash the mask before it is used for the first time.

In the face of the tight supply of masks amid the epidemic, the Government set aside funds to subsidise projects on technology applications of reusable masks under the first round of the Anti-epidemic Fund.

The CuMask complies with the American Society for Testing & Materials F2100 Level 1 standard and can be washed up to 60 times. It can also be used for a longer period after replacing the filter.

Mrs Lam said she is pleased to note that CuMask is well received by the public and the registration process has been very smooth.

“CuMask is a home-grown scientific research achievement with local application. The whole process has involved co-operation between the Government, industry, academia and the research sector and is an outstanding example of the use of technology to improve people’s lives.

“It will also help solve the problem of the supply of face masks during an epidemic in the long run. I highly commend all the people who have participated in the relevant work and I am fully confident in the development of innovation and technology in Hong Kong.”

Mrs Lam appealed to the public to make use of the registration quota of up to six people to minimise delivery resources and enhance efficiency.

She added that relevant departments will deliver the masks as soon as possible.

The CuMask online registration system received over 720,000 registrations, covering two million registrants in total on the first day of registration on May 6, the Innovation & Technology Bureau announced today.

The bureau said the response is overwhelming and it is encouraged to see support for local invention.

"Our thanks go to support from all sides, including the Hong Kong Research Institute of Textiles & Apparel (HKRITA) which has been commissioned to oversee the project, the Crystal International Group Limited which is responsible for the production, the Novetex Textiles Limited in Tai Po Industrial Estate for providing clean room for sterilisation, The Mills and the TAL Apparel Limited for lending premises to set up workshops as well as the frontline workmen for their hard work over the past few months.

“This unrivalled challenge cannot be met without their joint efforts and the collaboration of the industry and our team,” the bureau stated.

The bureau commissioned the HKRITA to oversee the CuMask project in order to meet the imminent needs for masks in Hong Kong.

It pointed out that the Government Stores & Procurement Regulations do allow direct purchase to be made under extreme urgency.

The whole procurement process was conducted in accordance with the Government's procurement regulations and procedures and with confirmation that the conditions under the Agreement on Government Procurement of the World Trade Organization could be met.

The bureau further explained that in February and March this year, the Government contacted various suppliers of reusable masks. However, most stated that they had either stopped production, did not have enough stock, were unable to export materials due to export control, or unable to produce testing certification.

The epidemic at that time was serious and the supplies of anti-epidemic items were becoming scarce. Hong Kong did not have any raw materials or production lines.

Taking into account the aggressive procurement actions of anti-epidemic items by different countries, export control and suspension of production lines all over the world, the Government had to consider urgently the feasibility of manufacturing reusable masks that would be up to standard for use by the whole community.

On reviewing the reusable mask developed by the HKRITA, the Government considered that the design of the mask and materials used could meet the requirement, as there were supporting certifications proving its compliance with relevant international standards.

As for mass production, it depends on the availability of supply of raw materials. Having wide network in the industry, the HKRITA was able to acquire quality raw materials within a short period and put production lines in place.

The Government therefore commissioned the HKRITA to oversee the coordination of production through direct purchase with a view to supplying reusable masks to all Hong Kong residents as soon as possible.

The bureau added the HKRITA is a non-profit-making R&D centre fully subsidised by the Government, with most of their R&D projects funded by the Innovation & Technology Fund.

The HKRITA oversees the CuMask project on a non-profit-making basis. All expenses will be reimbursed to the HKRITA on the basis of actual spending.

People concerned with the effectiveness of the CuMask may browse the website for testing reports and patent information.

Premises can still operate other licensed businesses which are not required to be suspended if they were operating more than one licensed business before the closure, the Food & Health Bureau said today.

The bureau made the statement in response to media enquiries on some anti-epidemic measures which were relaxed from today.

The statement noted that in accordance with the Prevention & Control of Disease (Requirements & Directions) (Business & Premises) Regulation, the Secretary for Food & Health has issued directions by notices in the Gazette that certain scheduled premises, namely karaoke establishments, clubs or nightclubs, party rooms and bathhouses, should remain closed until May 21.

These scheduled premises may still operate other licensed businesses if the operators have implemented all measures to effectively stop or avoid operation of businesses and offering services which are required to be suspended.

For example, premises originally operated as karaoke establishments and catering businesses can continue their catering business in accordance with the relevant directions if all karaoke operation and services are suspended.

The directions state that facilities, installations and equipment for karaoke activities are closed or properly sealed off and notices are posted in prominent locations at the entrances clearly indicating that only catering services but no karaoke services are provided in the premises.

Other scheduled premises operating more than one licensed business can adopt similar measures to operate other licensed businesses which are not required to be suspended, the bureau added.

More than 8,200 applications for the Anti-epidemic Support Scheme for Property Management Sector (ASPM) have been received, with over 3,850 approved, the Government announced today.

The approved applications involve subsidies of more than $140 million and will benefit around 22,000 building blocks and about 35,750 frontline property management workers.

Launched under the Anti-epidemic Fund, the ASPM provides subsidies to owners' organisations or property management companies of eligible buildings to provide hardship allowance to frontline property management workers.

It also provides the Anti-epidemic Cleansing Subsidy to owners' organisations or property management companies.

The scheme’s first phase covers private residential and composite buildings, while its second phase covers industrial and commercial buildings.

The ASPM is still open for applications and continues to disburse subsidies.

Contact the Property Management Services Authority at 3696 1156 or 3696 1166, or visit its website for details.

"In his new book--The Math of Life & Death: 7 Mathematical Principles that Shape Our Lives--mathematician Kit Yates makes complex mathematical concepts easily accessible to anyone, and which can improve decision making in an increasingly quantitative society. In this Q&A, Yates discusses why math is relevant to everyday life." See "Mathematician Kit Yates on Anti Vaxxer Movement, Air Travel Germs and Samoa's Measles Outbreak," by Meredith Wold Schizer, Newsweek, December 23, 2019.

Students in a math class at Columbine High School in Colorado used geometry to work with Habitat for Humanity to build homes for those in need. See the video segment at "Students Build Houses For Families In Need...In Math Class," by Shaun Boyd, CBS4 Denver TV, December 23, 2019.

"Driverless cars, robot butlers and reusable rockets--if the big inventions of the past decade and the artificial intelligence developed to create them have taught us anything, it's that maths is undeniably cool. And if you’re still not convinced, chances are you’ve never had it explained to you via a live experiment with a pigeon before. Temporary pigeon handler and queen of making numbers fun is Dr Hannah Fry, the host of this year's annual Royal Institution Christmas Lectures." Learn more in "Christmas Lectures presenter Dr Hannah Fry on pigeons, AI and the awesome power of maths," by Rachael Pells, inews, December 23, 2019.

"Artist uses snow as canvas for massive geometrical designs," by Thomas Peipert, AP, January 16, 2020.

"[W]hen the editors at Quanta Magazine invited me to host a podcast for them, I jumped at the chance...Through this podcast, I've been learning about the inner lives of some of the most intriguing mathematicians and scientists working today. [I]n every case, I wanted to know what makes them tick. I wanted to know why they do what they do, what they’ve discovered, and why it matters to them and to the world." Read "Why I'm Hosting The Joy of x Podcast," by Steven Strogatz, Quanta Magazine, January 14, 2020.