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Street traders losing 'right to shade' under trees
  Street vendors are being denied the "right to shade" under street trees in Hyderabad, India, a study suggests. Urban trees play an important role in providing a comfortable work environment for the city's outdoor traders, said rese...
作者:发表于:2020-07-07 13:56:55 点击:66 查阅全文...
Coronavirus: Australia to close Victoria-New South Wales border
The border between Australia's two most populous states, Victoria and New South Wales (NSW), is to close after a spike in Covid-19 cases in Melbourne. The outbreak in Victoria's capital has seen hundreds of cases in the past two weeks - more...
作者:发表于:2020-07-06 14:39:59 点击:62 查阅全文...
Coronavirus: Texas governor mandates wearing of face masks
Texas Governor Greg Abbott has ordered face coverings to be worn in public as coronavirus cases rocket in the state. The directive applies to counties with 20 or more Covid-19 cases, which covers most of Texas' 254 counties. Texas hit a rec...
作者:发表于:2020-07-03 14:51:40 点击:116 查阅全文...
Coronavirus: Immunity may be more widespread than tests suggest
  People testing negative for coronavirus antibodies may still have some immunity, a study has suggested. For every person testing positive for antibodies, two were found to have specific T-cells which identify and destroy infected cells. Thi...
作者:发表于:2020-07-02 12:16:11 点击:114 查阅全文...
What is vitamin K and why is it in the news?
  Vitamin K recently hit headlines when a Dutch study observed a relationship between poorer health outcomes in Covid-19 patients and reduced levels of vitamin K. But what is vitamin K and what can we learn from these new observations? ...
作者:发表于:2020-07-01 12:43:10 点击:72 查阅全文...
Could a boycott kill Facebook?
  Boycotts can be extremely effective - as Facebook is finding out. In the late 18th century, the abolitionist movement encouraged British people to stay away from goods produced by slaves. It worked. Around 300,000 stopped buying sugar - incr...
作者:发表于:2020-06-30 12:07:21 点击:89 查阅全文...
Washing machines' microplastic filters 'untested'
Filters can cut the volume of ocean-bound microplastic fibres released by washing machines, a study has shown. However, until now, filters have not been tested under scientific conditions to prove their effectiveness. In the first study of ...
作者:发表于:2020-06-29 14:12:11 点击:62 查阅全文...
Coronavirus: Florida and Texas reverse reopening as US cases pass 2.5m
  Coronavirus infections across the United States have passed 2.5 million, with record numbers of cases reported in the states of Florida and Texas. The surge in cases in southern states comes after businesses were allowed to re-open in recent...
作者:发表于:2020-06-28 14:56:12 点击:78 查阅全文...