By Roshan
Abraham , Seerat Gupta
(Reuters) - The number of coronavirus
cases in the United States crossed the 11-million mark on Sunday reaching yet
another grim milestone, according to a Reuters tally, as the third wave of
COVID-19 infections surged across the country.
Reuters data shows the pace of the pandemic in the United States has
quickened, with one million more new cases from just 8 days ago when it hit 10
million, making it the fastest since the pandemic began. This compares with 10
days it took to get from 9 to 10 million and 16 days it took to reach 9 million
from 8 million cases.
The United States, hardest-hit by the coronavirus, crossed 10 million
COVID-19 cases on November 8 and is reporting over 100,000 daily cases for the
past 11 days straight.
The latest 7-day average, shows the United States is reporting more than
144,000 daily cases and 1,120 daily deaths, the highest for any country in the
world.
Texas and California have reported the highest number of COVID-19
infections across the United States, together accounting for about 2.1 million
cases or about 19% of the total cases since the pandemic began, according to
Reuters analysis.
As COVID-19 related hospitalizations continue to rise, crossing 69,000
on Saturday, U.S. President-elect Joe Biden’s top advisers have stressed the
need to control the pandemic, warning that local healthcare systems are at a
tipping point.
The Midwest remains the hardest-hit region based on the most cases per
capita with North Dakota, South Dakota, Wisconsin, Iowa and Nebraska the top
five worst-affected U.S. states.
Illinois, which has emerged as the pandemic’s new epicenter in the
region as well as across the country, reported a record 15,433 new cases on
Friday, the most of any state in a 24-hour period, surpassing the previous
all-time high of 15,300 set by Florida in July.
Several states this week reimposed restrictions to curb the spread of
the virus across the nation. North Dakota became the latest state to require
that face coverings be worn in public, as it joins 39 other states this month
in reporting record daily jumps in new cases.
State governors urged residents to stay home as much as possible,
including Nevada Democrat Steve Sisolak, who said late on Friday that he became
the fourth governor to become infected with the virus.
The United States accounts for about 20% of more than 54 million global
cases and close to 19% of the 1.31 million deaths reported worldwide, according
to a Reuters tally.
https://uk.reuters.com/article/uk-health-coronavirus-usa-records/u-s-covid-19-cases-cross-11-million-as-pandemic-intensifies-idUKKBN27V0SV?il=0
Next, some vaccine links
kindly sent along from a LIR reader in Canada. The links come from a most
informative update from Stanford Hospital in California.
World
Health Organization - Landscape of COVID-19 candidate vaccines . https://www.who.int/publications/m/item/draft-landscape-of-covid-19-candidate-vaccines
NY
Times Coronavirus Vaccine Tracker . https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html
Stanford
Website . https://racetoacure.stanford.edu/clinical-trials/132
Regulatory
Focus COVID-19 vaccine tracker . https://www.raps.org/news-and-articles/news-articles/2020/3/covid-19-vaccine-tracker
Some other useful Covid links.
Johns Hopkins Coronavirus
resource centre
https://coronavirus.jhu.edu/map.html
Rt Covid-19
https://rt.live/
Covid19info.live
https://wuflu.live/
Centers for Disease Control
Coronavirus
https://www.cdc.gov/coronavirus/2019-ncov/index.html
Technology Update.
With events happening
fast in the development of solar power and graphene, I’ve added this section.
Updates as they get reported. Is converting sunlight to usable cheap AC or DC
energy mankind’s future from the 21st century onwards.
New family of quasiparticles in
graphene-based materials Findings to help
achieve Holy Grail of 2D materials - superfast electronic devices Date:
November 13, 2020
Source:
University of Manchester
Summary:
After years of dedicated research a group of pioneering scientists have again
revealed a phenomenon that is 'radically different from textbook physics' and
this work has led to the discovery and characterization of a new family of
quasiparticles found in graphene-based materials. Called Brown-Zak fermions
these extraordinary particles have the potential to achieve the Holy Grail of
2D materials by having ultra-high frequency transistors which can in turn
produce a new generation of superfast electronic devices.
A group of researchers led by Sir Andre Geim and Dr Alexey Berdyugin at
The University of Manchester have discovered and characterised a new family of
quasiparticles named 'Brown-Zak fermions' in graphene-based superlattices.
The team achieved this breakthrough by aligning the atomic lattice of a
graphene layer to that of an insulating boron nitride sheet, dramatically
changing the properties of the graphene sheet.
The study follows years of successive advances in graphene-boron nitride
superlattices which allowed the observation of a fractal pattern known as the
Hofstadter's butterfly -- and today (Friday, November 13) the researchers
report another highly surprising behaviour of particles in such structures
under applied magnetic field.
"It is well known, that in zero magnetic field, electrons move in
straight trajectories and if you apply a magnetic field they start to bend and
move in circles," explain Julien Barrier and Dr Piranavan Kumaravadivel,
who carried out the experimental work.
"In a graphene layer which has been aligned with the boron nitride,
electrons also start to bend -- but if you set the magnetic field at specific
values, the electrons move in straight line trajectories again, as if there is
no magnetic field anymore!"
"Such behaviour is radically different from textbook physics."
adds Dr Piranavan Kumaravadivel.
"We attribute this fascinating behaviour to the formation of novel
quasiparticles at high magnetic field," says Dr Alexey Berdyugin.
"Those quasiparticles have their own unique properties and exceptionally
high mobility despite the extremely high magnetic field."
As published in Nature Communications , the work describes how
electrons behave in an ultra-high-quality superlattice of graphene with a
revised framework for the fractal features of the Hofstadter's butterfly.
Fundamental improvements in graphene device fabrication and measurement
techniques in the past decade have made this work possible.
More
https://www.sciencedaily.com/releases/2020/11/201113075240.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fmatter_energy%2Fgraphene+%28Graphene+News+--+ScienceDaily%29
"We
shouldn't pour cold water on everything.
We, the eight or nine players in global investment banking, have a very
good future."
Deutsche
Bank, CEO Josef Ackermann. Davos, January 2007.
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