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  1. R

    Coronavirus

    Delta would be more lethal, except for 2 points 1) treatments are much improved now 2) almost everywhere people have some level of immunity, be it prior infection or vaccination or both infection + vaccination. if you want to look for a population that remains covid naive, look to the young (or...
  2. R

    Coronavirus

    its a sensitive issue, in theory there is no difference between vaccines, and early on there were threats to "struck off" Australian doctors if they promoted one over the other. Doctors complain of ‘gag’ over AstraZeneca vaccine Now there is obvious safety and effectiveness difference...
  3. R

    Coronavirus

    So now, 3 of the 6 vaccinated guests are also Delta Covid positive. No statement on who had which vaccine (AZ or Pfizer)
  4. R

    Coronavirus

    meanwhile in Oz We are presumably the first country with a sizable cohort (18-49 yr female) that has had more AstraZeneca Covid19 Vaccine deaths than Covid19 deaths (for that cohort) https://www.tga.gov.au/alert/astrazeneca-chadox1-s-covid-19-vaccine-2 nil Covid-19 deaths for female 18-49...
  5. R

    Should schools in America be required to teach Arabic numerals to Children?

    No, but Yes to teaching the kids the Hindu-arabic numeral system instead. or even better, why not teach them to read a clock face - base 60 - Babylonian
  6. R

    Autonomous Car Progress

    camera nomenclature visible - what our eyes can see infrared - just beyond visible, what our eyes can't see thermal - blackbody radiation infrared does not equal thermal camera. infrared camera is cheap and doesn't disturb humans. thermal cameras are expensive.
  7. R

    Autonomous Car Progress

    Fine, I'll do it myself https://www.fmgl.com.au/in-the-news/media-releases/2021/02/15/fortescue-deploys-autonomous-light-vehicles-at-chichester-hub
  8. R

    Autonomous Car Progress

    fwiw, what about in car lidar, to sense occupants intentions LG Innotek (as I understand it, this is the supplier of ToF for apple products)
  9. R

    Coronavirus

    2 studies from Australia Innate cell profiles during the acute and convalescent phase of SARS-CoV-2 infection in children | Nature Communications compares the response of Children infected VS Children exposed (but negative on PCR testing) ie how children fight of COVID19 without being...
  10. R

    Tesla market share of BEVs in NSW

    first bit i notice is that steam vehciles still outsell hydrogen by 2:1 ratio.
  11. R

    Tesla BEV Competition Developments

    2020 results, 3 of the 4 top PHEVs just manage to exceed 50km range on EU cycle. remainder is a chinese PHEV with 40 kWh battery, presumably it exceeds 100km on China cycle
  12. R

    Coronavirus

    Its a coded meassage about our culture, rural australia is always in an unending fight against various foreign biological invaders, be it animals, weeds, insects, virus, even fungai. for instance, in my state, Panama TR4 Do not enter banana farms - YouTube this quarantine mentality has largely...
  13. R

    Coronavirus

    Australians had 2 separate experiences with COVID19. VIc had a big (outbreak and lockdown) mid year, and the rest of the country has mostly avoided Covid19 since basically April 2020. Roughly speaking, and outbreak lasts 3 weeks in NSW before it is snuffed out. This is quite amazing NSW...
  14. R

    Coronavirus

    FWIW, it seems that die hard old bastards do exist. and are great plasma donors 59597603 (medrxiv.org) page 11 High responders with strong and broad SARS-CoV-2 antibody responses are ideal plasma donors it gets even better there are Elite Responders veritable human factories of antibody vs...
  15. R

    Coronavirus

    Ahhh this is fundamentally important /useful to know. The intermediate species defines certain properties of great interest for vaccine development. As well as liklihoods of eradication vs annual reinfection etc.
  16. R

    Coronavirus

    I dont think the virus was edited, but i do suspect its an unitended escape from the wuhan lab where transgenic mouse models (human ace2) were likely used to study natural sars coronavirus similar to 2003 edition https://www.jax.org/Strain/UrlAsPDF/034860 Molecular mimicry between SARS-CoV-2...
  17. R

    Coronavirus

    FWIW some athletes like to do their training when their O2 sat is less than 90%. Ie endurance runners training at altitude may target 88-92% O2 sat as optimal.
  18. R

    Coronavirus

    a global perspective
  19. R

    Coronavirus

    FWIW Western Australia has had a total of 9 coronavirus fatalities, the first 8 of which where not caught on WA soil (ie they were cruise ships, airplane etc) . It been near impossible to catch AND die from Coronavirus19 while in Western Australia.
  20. R

    Coronavirus

    hmmm, how do you eat with a mask on? anyway, just pointing out from earlier study, proximity to covid infectious person was not particulary relevant in this plane case study, rear half has zero new cases despite having plenty of infectious people. So the question is why? the anser is...
  21. R

    Honda to launch 'level 3' self-driving car by March

    note well, for redundancy there is a 5 x radar (+camera) group & a 5 x lidar (+ camera) group
  22. R

    Honda to launch 'level 3' self-driving car by March

    It seems that it will incorporate functions such as automatic driving during traffic jams (hands-off, eyes-off, watching and operating TV, etc.) ホンダは20年内に自動運転レベル3対応技術、レベル未公表のトヨタも有力
  23. R

    Coronavirus

    Generally sars-coronavirus-19 doesn't kill people, it's their own immune response after the infection is basically defeated that kills people. The contagious stage is generally sickness free/mild. (Generally is not Always,. Timing is everything with this disease). Point is people seem to...
  24. R

    Coronavirus

    So, at first glance, we should not expect the first rush vaccines to significantly protect against transmission (if it does, that's a bonus). But the next generation should provide transmission protection.
  25. R

    Coronavirus

    'Once again this highlights the need for an effective COVID-19 vaccine that could be used to ring fence and help control such outbreaks, rather than have to lock down an entire city. Vaxine’s Covax-19 vaccine was shown to prevent nasal virus shedding in the ferret infection model (manuscript in...
  26. R

    Tesla, EVs, and the auto industry's response

    It's Europe Spec, for instance France and Germany. I'm in Australia and we don't, but even the smallest business premise will be 3 phase.
  27. R

    Tesla, EVs, and the auto industry's response

    Nissan Ariya appears midway in size between Qashqai (Rogue) and X-Trail. Due to cost pressures, Its going to be very difficult to sell a car with 90kWh battery if people compare it their own brands equivalent ICE cars. But on the bright side for Nissan, people cross shopping a Ariya with...
  28. R

    Tesla, EVs, and the auto industry's response

    Ariya and ID4 are showing idential WLTP range on UK web sites - 310mile for larger battery single engine option. the nissan has slighlty longer wheelbase and battery. typically VW and Nissans are not cross shopped, but these 2 seem like they could be. pretty hard to justify either Ariya and...
  29. R

    Coronavirus

    https://www.health.nsw.gov.au/Infectious/covid-19/Documents/covid-19-surveillance-report-20201031.pdf vast reduction in flu compared to last year, but whats up with adenovirus and rhinovirus?
  30. R

    Coronavirus

    https://onlinelibrary.wiley.com/doi/epdf/10.1111/ina.12639 2019 - Effect of ventilation improvement during a tuberculosis outbreak in underventilated university buildings CO2 is a proxy for cell metabolism, which makes it an exquisite marker for indoor air quality.
  31. R

    Coronavirus

    sigh, that is opinion, not science. I'm waiting for an RCT Reduction in COVID-19 Infection Using Surgical Facial Masks Outside the Healthcare System - Full Text View - ClinicalTrials.gov regarding surgical masks and the general public. The question is, is there a Reduction in COVID-19 Infection...
  32. R

    Coronavirus

    I will add, the other states in Australia have work places where people were sacked/turned away from site for facial hair if it interferes with potential respirator wearing. No shave, no job: BHP Billiton's decision to sack worker over beard vindicated 2015 - No shave, no job: BHP Billiton's...
  33. R

    Coronavirus

    Bunnings (australian hardware shop) masks 60 aussie cents each. https://www.bunnings.com.au/10pk-disposable-face-mask-sojo_p0186429 KN95 respirators 100 aussie cents each https://www.bunnings.com.au/kn95-disposable-respirator-5pk-sojo_p0186428 Australia has essentially bifurcated in regards...
  34. R

    Coronavirus

    Role of air distribution in SARS transmission during the largest nosocomial outbreak in Hong Kong 2004 https://onlinelibrary.wiley.com/doi/full/10.1111/j.1600-0668.2004.00317.x I'm starting to consider that the difference between the EU/USA response compared to the "chopstick" sino sphere of...
  35. R

    Coronavirus

    Part of the why? 1996 Inefficiency of upward displacement operating theatre ventilation - PubMed ' In general the upward displacement system removed dust particles too small to carry bacteria (0.16-<0.3 microm, 0.001<P<0.01) more efficiently than the conventional system. However, the...
  36. R

    Coronavirus

    Masks and medical care: Two keys to Taiwan's success in preventing COVID-19 spread 16 cents per mask, government QC, rationing and issue
  37. R

    Coronavirus

    Masks and medical care: Two keys to Taiwan's success in preventing COVID-19 spread 17 cents per mask, government rationing and issue.
  38. R

    Coronavirus

    Some taiwanese used washable covers over standardized issue disposable masks. They only paid 1 euro for 3 masks anyway, but this is a neat and effective way to extend the life of a single use mask. The cover needs daily washing.
  39. R

    Coronavirus

    Its not the motorbike rally thats the problem, its the pubs afterward. Consider Czech, 'The Czech Republic now has the highest rate of new coronavirus infections and deaths per capita in the European Union, according to the European Centre for Disease Prevention and Control (ECDC). The...
  40. R

    Coronavirus

    Whats the climate like in Germany? Richtiges Lüften reduziert Risiko der SARS-CoV-2-Infektion
  41. R

    Coronavirus

    Proper airing reduces risk of SARS-CoV-2 infection ' Proper airing reduces risk of SARS-CoV-2 infection Indoor Air Hygiene Commission at the German Environment Agency issues recommendations for schools and other indoor spaces ' 'The IRK recommends - given the current state of knowledge about...
  42. R

    Coronavirus

    Molecular mimicry between SARS-CoV-2 spike glycoprotein and mammalian proteomes: implications for the vaccine A massive heptapeptide sharing exists between SARS-CoV-2 spike glycoprotein and human proteins. Such a peptide commonality is unexpected and highly improbable from a mathematical...
  43. R

    Coronavirus

    https://www.biorxiv.org/content/10.1101/2020.10.15.341479v1.full.pdf another avenue regarding differing immune response, Abnormal antibodies to self-carbohydrates in SARS-CoV-2 infected patients ''. Since the surface of the virus is heavily glycosylated,49-51 responses to glycans could be...
  44. R

    Coronavirus

    'With the information available to date, there is no direct evidence to suggest which hypothesis, animal to human transmission (either the recent or less recent one (25, 26)) or original human hosting, is true. The evidence only tells us how viruses are related within a hierarchical...
  45. R

    Coronavirus

    its a retrospective study, with wide confidence interval, so its not definitive al all. but yes, thats one way to interpret it. but to be more precise, a mild coronavirus does not protect from the nasty one, but a mild coronavirus reaction protects from the nasty one's reactions. (keep in...
  46. R

    Autonomous Car Progress

    there could well come a regulatory requirement for redundancy in sensors that can only be viable with combined fully functional lidar and camera. that is to say, both camera and lidar need to be capable independently providing full autonomy, for a car to be allowed driverless operation. in...
  47. R

    SVOLT LiNi0.5Mn1.5O4

    a Chinese primer on this Chemistry “无钴电池”究竟是科技突破还是偷换概念?
  48. R

    Solar PV News

    https://www.suncable.sg/ the solar farm is probably trivial compared to that cable. First thought, there is continental oceanic trench between Australia and Timor 2nd thought, Australia and Singapore don't always agree with Indonesia.
  49. R

    Coronavirus

    tl dr those with a recent documented corona common cold, are also more likely to get documented for catching covid-19 (perhaps they are people who catch the cold easily) but, the severity of their outcomes are much gentler than those without a recent documented corona common cold. about...
  50. R

    Coronavirus

    JCI - Recent endemic coronavirus infection is associated with less severe COVID-19 hmmmmm 'The eCoV+ as compared to eCoV-hospitalized patients had a significantly lower odds for intensive care unit (ICU)admission(OR 0.1, 95% CI 0.0 –0.7)'

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