HN user

InInteraction

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news.ycombinator.com 1y ago

Tell HN: Replit Starter Plan Changes – Announced Friday Night, Effective Monday

InInteraction
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twitter.com 4y ago

Nunchuk.io Official Response to the Ontario Superior Court of Justice Injunction

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www.euronews.com 4y ago

German researchers to breed genetically-modified pigs for human heart transplant

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www.sydney.edu.au 4y ago

Strange radio waves emerge from direction of the galactic centre

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en.wikipedia.org 5y ago

International Chess Day

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www.u-fukui.ac.jp 5y ago

University of Fukui, Japan: New drug to regenerate lost teeth

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www.tomsguide.com 5y ago

Android update is nasty spyware – what you need to know

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news.ycombinator.com 5y ago

Ask HN: What are decentralized Twitter alternatives?

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journals.plos.org 5y ago

Vitamin D at least 30 ng/mL reduced risk for Covid-19 adverse outcomes

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cattiviscienziati.com 5y ago

Note of concern regarding Russian vaccine effort

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pubs.acs.org 5y ago

Low Doses of LSD Acutely Increase BDNF Blood Plasma Levels in Healthy Volunteers

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www.purdue.edu 5y ago

New evidence that the quantum world is even stranger than we thought

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theconversation.com 5y ago

Only one in ten medical treatments are backed by high-quality evidence

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www.eurekalert.org 5y ago

Children with no Covid-19 symptoms may shed virus for weeks

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www.alansfactoryoutlet.com 5y ago

The Deepest Underground Structures in the World

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www.psypost.org 5y ago

Sociopathic traits linked to non-compliance with Covid-19 containment measures

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medicine.wustl.edu 5y ago

Nasal vaccine against Covid-19 prevents infection in mice

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bntr.planet.ee 5y ago

Visual Lambda Calculus [pdf]

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www.eurekalert.org 5y ago

Researchers show children are silent spreaders of virus that causes Covid-19

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news.utk.edu 5y ago

How Happy Couples Argue: Study (2019)

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www.reddit.com 5y ago

I'm 33. Starting my CS degree on Monday

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news.ubc.ca 5y ago

Popular seafood species in sharp decline around the world

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www.gizmodo.co.uk 5y ago

Ground-Penetrating Radar Reveals Entire Ancient Roman City

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psychnewsdaily.com 5y ago

Pathological Lying: Theoretical and Empirical Support for a Diagnostic Entity

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www.theguardian.com 5y ago

Children who suffer violence or trauma age faster, study finds

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www.sciencedirect.com 5y ago

The impact of cannabis access laws on opioid prescribing

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www.iospress.nl 5y ago

Patterns of Regional Cerebral Blood Flow as a Function of Obesity in Adults

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www.psypost.org 5y ago

Study sheds light on why psilocybin mushrooms have been consumed for centuries

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www.psypost.org 5y ago

Psychedelic drugs reduce depressive symptoms by helping people accept emotions

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www.sciencemag.org 5y ago

World’s oldest camp bedding found in South African cave

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A.30 is basically dead, well outcompeted by Delta etc. The UK don't report on it now.

"VUI-21FEB-01 (A.23.1 with E484K), VOC-21FEB-02 (B.1.1.7 with E484K), VUI-21MAR-01, (B.1.324.1 with E484K), A.30, B.1.633, B.1.214.2 and B.1.1.7 with S494P have not been observed in the UK or within the international GISAID dataset within the last 12 weeks. These variants are no longer included in the data update."

One of the best (IMHO) Sci-Fi books "His Master's Voice" by Stanisław Lem begins exactly like this.

"It is a densely philosophical first contact story about an effort by scientists to decode, translate, and understand an extraterrestrial transmission. The novel critically approaches humanity's intelligence and intentions in deciphering and truly comprehending a message from outer space." https://en.wikipedia.org/wiki/His_Master%27s_Voice_(novel)

Related Journal of Pediatrics Article: Pediatric SARS-CoV-2: Clinical Presentation, Infectivity, and Immune Responses https://www.jpeds.com/article/S0022-3476(20)31023-4/fulltext

Results A total of 192 children (mean age 10.2 +/- 7 years) were enrolled. Forty-nine children (26%) were diagnosed with acute SARS-CoV-2 infection; an additional 18 children (9%) met criteria for MIS-C. Only 25 (51%) of children with acute SARS-CoV-2 infection presented with fever; symptoms of SARS-CoV-2 infection, if present, were non-specific. Nasopharyngeal viral load was highest in children in the first 2 days of symptoms, significantly higher than hospitalized adults with severe disease (P = .002). Age did not impact viral load, but younger children had lower ACE2 expression (P=0.004). IgM and IgG to the receptor binding domain (RBD) of the SARS-CoV-2 spike protein were increased in severe MIS-C (P<0.001), with dysregulated humoral responses observed.

Conclusion This study reveals that children may be a potential source of contagion in the SARS-CoV-2 pandemic in spite of milder disease or lack of symptoms, and immune dysregulation is implicated in severe post-infectious MIS-C.

BOSTON - In the most comprehensive study of COVID-19 pediatric patients to date, Massachusetts General Hospital (MGH) and Mass General Hospital for Children (MGHfC) researchers provide critical data showing that children play a larger role in the community spread of COVID-19 than previously thought. In a study of 192 children ages 0-22, 49 children tested positive for SARS-CoV-2, and an additional 18 children had late-onset, COVID-19-related illness. The infected children were shown to have a significantly higher level of virus in their airways than hospitalized adults in ICUs for COVID-19 treatment.

Abstract

While recent research has shown that cannabis access laws can reduce the use of prescription opioids, the effect of these laws on opioid use is not well understood for all dimensions of use and for the general United States population. Analyzing a dataset of over 1.5 billion individual opioid prescriptions between 2011 and 2018, which were aggregated to the individual provider-year level, we find that recreational and medical cannabis access laws reduce the number of morphine milligram equivalents prescribed each year by 11.8 and 4.2 percent, respectively. These laws also reduce the total days’ supply of opioids prescribed, the total number of patients receiving opioids, and the probability a provider prescribes any opioids net of any offsetting effects. Additionally, we find consistent evidence that cannabis access laws have different effects across types of providers, physician specialties, and payers.

I've recently posted 2 Vitamin D studies on HN.

One "COVID‐19 and Vitamin D" study recommends treatment of COVID‐19 patients with high dose of vitamin D - 200,000 IU of vitamin D2 or vitamin D3 when admitted with COVID-19 followed by 4,000-10,000 IU/day - since populations most vulnerable to COVID-19 are likely vitamin D deficient (https://news.ycombinator.com/item?id=24132440)

Another study (cited by Deva Boone) discusses Vitamin D deficiency is a predictor of poor prognosis in patients with acute respiratory failure due to COVID-19: 81% of patients had hypovitaminosis D; severe vitamin D deficiency patients had a 50% mortality probability, while those with vitamin D ≥ 10 ng/mL had a 5% mortality risk (https://news.ycombinator.com/item?id=24109396)

Abstract

The negative outcomes of COVID‐19 diseases respiratory distress (ARDS) and the damage to other organs are secondary to a “cytokine storm” and to the attendant oxidative stress. Active hydroxyl‐forms of vitamin D are anti‐inflammatory, induce anti‐oxidative responses, and stimulate innate immunity against infectious agents. These properties are shared by calcitriol and the CYP11A1‐generated non‐calcemic hydroxyderivatives. They inhibit the production of pro‐inflammatory cytokines, downregulate NF‐κΒ, show inverse agonism on RORγ and counteract oxidative stress through the activation of NRF‐2. Therefore, a direct delivery of hydroxyderivatives of vitamin D deserves consideration in the treatment of COVID‐19 or ARDS of different etiology. We also recommend treatment of COVID‐19 patients with high dose vitamin D since populations most vulnerable to this disease are likely vitamin D deficient and patients are already under supervision in the clinics. We hypothesize that different routes of delivery (oral and parenteral) will have different impact on the final outcome.

Eighty one percent of patients had hypovitaminosis D. Based on vitamin D levels, the population was stratified into four groups: no hypovitaminosis D, insufficiency, moderate deficiency, and severe deficiency. No differences regarding demographic and clinical characteristics were found. A survival analysis highlighted that, after 10 days of hospitalization, severe vitamin D deficiency patients had a 50% mortality probability, while those with vitamin D ≥ 10 ng/mL had a 5% mortality risk (p = 0.019). High prevalence of hypovitaminosis D was found in COVID-19 patients with acute respiratory failure, treated in a RICU. Patients with severe vitamin D deficiency had a significantly higher mortality risk. Severe vitamin D deficiency may be a marker of poor prognosis in these patients, suggesting that adjunctive treatment might improve disease outcomes.

Thank you! I agree -- most sites on the web are just content and there's no reason to have excessive JavaScript or any reason why the page can't be perfectly functional without it. Some people call it 'The Website Obesity Crisis'.

wow, this article explains why I don't remember my childhood and the most part of my teenage years, and even later memories are registered as some facts, not actual memories. I always thought it's a protective mechanism my brain developed to get rid of all the negative things, but the authors say it is just the price for being physically active (I run 10k every day, play Ultimate, + martial arts, mountaineering/alpinism and other extreme sports) => growing new neurons:

"A few years back, Frankland and his wife Sheena Josselyn—also a neuroscientist at the Hospital for Sick Children—started to notice that the mice they studied performed worse on certain kinds of memory tests after living in a cage with a running wheel. As the couple knew, exercise on a running wheel promotes neurogenesis—the growth of whole new neurons—in the seahorse-shaped hippocampus, a brain region that is essential for memory. But while neurogenesis in the adult hippocampus likely contributes to the ability to learn and remember, Karl Deisseroth of Stanford University and others had suggested5 that it might also necessitate a certain amount of forgetting. Just as a forest has room for only so many trees, the hippocampus can hold only so many neurons. New brain cells might crowd the territory of other neurons or even replace them altogether, which could in turn break or reconfigure the small circuits that likely store individual memories. Perhaps, then, the especially high rate of neurogenesis in infancy was partly responsible for childhood amnesia."

And this also explains why I always try to schedule my long runs after the calls to my mother (they are stressful), and add more miles if I have more stress in my life in general:

"when adults ran on a hamster wheel after the shocks—thereby stimulating neurogenesis—they started to mirror infants in their forgetfulness. Prozac, which also encourages neural growth, had the same effect. Conversely, when the researchers hindered neurogenesis in infant mice with drugs or genetic engineering, the young animals formed much more stable memories."

This problem was posted on stackoverflow 9(!) months ago http://stackoverflow.com/questions/38959321/firebase-databas... It has been updated recently: "After 9 months of back-and-forth emails (over 40 emails), Google has acknowledged that they have found some bugs that may be responsible for high bandwidth usage, but bandwidth usage is still too high. Resolving this issue does no appear to be a priority for Google/Firebase (it took them 1.5 months to respond to the last email)."