The End of Urban Sprawl Is the Dawn of a New Economy
Census data comparing population growth patterns between 2006 and 2011 show that urban sprawl is on the decline and that greater population density creates more economic opportunities.
What's the Latest Development?
Census data on population growth between 2006 and 2011 show that urban sprawl is on the decline, an encouraging sign for the rebounding economy, says Richard Florida. In the last two years, all but two of America's largest population centers have grown, suggesting that people are beginning to move from the suburbs back to city centers (the two cities that did not grow were Detroit and Cleveland). In fact, 'central metro counties accounted for 94% of US growth, compared with 85% just before the recession.'
What's the Big Idea?
Cities are the core of America's remaining economic competitiveness. Urban centers will continue leading the way out of the Great recession as 'soaring gas prices make long commutes less appealing and high unemployment draws more people to big job centers.' "The city has become the key social and economic unit of today's economy, and its clustering and density the are the source of innovation, productivity improvement, and jobs," says Florida. Detroit, for example, is now home to Quicken's HQ and a new Twitter office is slated to be opened there.
Photo credit: shutterstock.com
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It's the first time scientists have discovered an animal that doesn't perform aerobic respiration.
- The animal is a tiny parasite called Henneguya salminicola.
- The parasite infects salmon and lives within the fish muscle, though scientists aren't quite sure how it breaks down nutrients for survival.
- The findings are published in the journal PNAS.
H. salminicola inside of a salmon
An evolutionary advantage<p>Losing that mitochondrial genome appears to have been a less-is-more type of advantage for the parasite.</p><p style="margin-left: 20px;">"Myxozoans have gone through outstanding morphological and genomic simplifications during their adaptation to parasitism from a free-living cnidarian ancestor," the authors wrote. "As a highly diverse group with >2,400 species, which inhabit marine, freshwater, and even terrestrial environments, evolutionary loss and simplification has clearly been a successful strategy for Myxozoa, which shows that less is more."</p><p>The researchers aren't quite sure how <em>H.</em> <em>salminicola </em>breaks down nutrients without oxygen. One possibility is that it absorbs molecules from its host. It's hard to tell, however, because the researchers analyzed dead parasites — they'd need to look at parasites living within the fish to get a better understanding of how the creatures operate.</p><p>The discovery highlights how much scientists still have to learn about the diversity of life on Earth. Atkinson told <a href="https://www.cnn.com/2020/02/26/world/first-animal-doesnt-breathe-oxygen-scn-trnd/index.html" target="_blank"><em>CNN</em></a> that he expects <em>H.</em> <em>salminicola </em>isn't the only animal that can survive without oxygen, or in even "weirder modes of existence." </p>
The search for alien life<p>One interesting implication of the discovery is what it means for the search for alien life. It's long been thought that, if aliens exist, they'd likely breathe oxygen. After all, it's the best element that we know of for producing large amounts of energy for metabolism, allowing us to "grow large, run and jump and think," as David Catling, a planetary scientist at the University of Washington, told <a href="https://www.forbes.com/sites/brucedorminey/2012/11/20/why-e-t-would-also-breathe-oxygen/#48fdfed63c55" target="_blank"><em>Forbes</em></a>. <br></p><p style="margin-left: 20px;">"Because of oxygen's chemical advantages and the history of complex life on earth is so intertwined with oxygen levels," he said. "I think E.T. would also breathe oxygen."</p><p>This is one reason why many think Earth-like exoplanets with atmospheres that likely contain oxygen would be good candidates for harboring alien life. But, in a small way, the newly discovered parasite gives reason to think that the search for alien life — and their life-supporting planets — might be far more complicated.</p>
People remember when governments lie to them and it lowers their satisfaction in government officials.
- A recent study measured how the public's trust in government differs when exposed to rumors, government denials, and subsequent verification of the initial rumors.
- The study, conducted in China, also examined whether any changes in trust lasted over a three-week period.
- The results suggest that governments that deem negative information as "fake news" may persuade some people, but over the long term it can cost them in credibility and public satisfaction.
Credit: Anthony Kwan/Getty Images<p><br></p><p style="margin-left: 20px;">"The ability to label claims and explanations that the authorities deem objectionable as fake has long been regarded as a power," the researchers wrote. "Because the revelation of the falsehood of government denials could erode the government's power, it is important to investigate its consequences, particularly in the authoritarian setting."</p><p>In the study, the researchers conducted a survey on three groups of participants. Each group was shown different information regarding a new automobile registration policy, and they were also asked general questions about demographic information and political interests. The study explains:</p><p style="margin-left: 20px;">"The first group was exposed to a rumor regarding the government's automobile registration policy (<em>rumor group</em>), the second group was exposed to the government's denial of the rumor (<em>denial group</em>), and the third group was exposed to an event in which the rumor initially denied by the government was verified as true (<em>verification group</em>)."</p><p>Each group then reported how much they believed in the initial rumor and the government denial. The denial and verification groups were also asked to rate their satisfaction with the government's handling of automobile registration.</p><p>The results showed that government denial effectively decreased belief in the rumor, compared to the group that was exposed only to the rumor. Meanwhile, being exposed to a verification of the rumor increased belief in the rumor and decreased belief in the denial. Also, the verification group reported being slightly less satisfied with the government.</p>
Design of survey 1
Credit: Wang et al.<p>But do these effects last? After all, <a href="https://www.jstor.org/stable/40982891" target="_blank">past research</a> suggests that the effects of persuasive communication — say, a negative political ad smearing a candidate — tend to disappear within days.</p><p>To find out, the researchers conducted a follow-up survey three weeks after the first. This time, the survey included only two groups: the verification group from the first survey, and a group of new participants. Both groups were exposed to a rumor and then a government denial.</p><p style="margin-left: 20px;">"The difference between the two groups was simply that one of them had previously experienced the revelation of the government's false denial of an online rumor, while the other group did not have such an experience," the researchers wrote.</p><p>The results showed that the verification group — that is, people who had weeks earlier been shown that the government had lied to them — was much less likely to believe in the government's denial. What's more, the verification group was also less satisfied with the government.</p>
Design of survey 2
Wang et al.<p>The findings suggest that governments can lose credibility over the long term when they call something "fake news" but it later proves true.</p><p style="margin-left: 20px;">"As discussed earlier, while authoritarian countries can be awash with rumors and fake news, it is less frequent for the government's false denials to be caught due to the lack of independent news media and fact-checking organizations," the researchers wrote.</p><p style="margin-left: 20px;">"It is therefore a vivid and memorable experience to see the government's denial bluntly shown to be false. Unsurprisingly, such an experience would make people less willing to believe a new denial from the government, especially if it is somewhat similar to the one that had been shown to be false."</p><p>Ultimately, calling "fake news" on negative information does seem to persuade some people. But it seems to be a costly short-term strategy, one that comes with the added cost of a dissatisfied public.</p>
UNC School of Medicine researchers identified the amino acid responsible for the trip.
- Researchers at UNC's School of Medicine have discovered the protein responsible for LSD's psychedelic effects.
- A single amino acid—part of the protein, Gαq—activates the mind-bending experience.
- The researchers hope this identification helps shape depression treatment.
What is Bicycle Day?<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="d346092205da3c9ed10bad283222c9f1"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/L32mAiLXnLs?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span><p>Back in the world of clinical science, LSD has always showed promise. That trend continues as restrictions are finally easing up. Understanding LSD's effects on our brain's complex system of networks is an important step toward discovering therapeutic actions. As Roth <a href="https://www.inverse.com/mind-body/how-lsd-binds-to-the-brain-study" target="_blank">says</a> of his research,</p><p style="margin-left: 20px;">"Now we know how psychedelic drugs work – finally! Now we can use this information to, hopefully, discover better medications for many psychiatric diseases."</p><p>Using X-ray crystallography, Roth's team discovered a single amino acid—a building block of the protein, Gαq—responsible for binding to serotonin receptors. As LSD is only a partial agonist, they also experimented with a full-agonist designer psychedelic in order to observe complete receptor activation. This amino acid appears to be the master switch for the psychedelic experience. </p><p>While psilocybin has been in the news, the psychedelic renaissance is expanding in all directions. Phase 1 clinical trials on the <a href="https://newatlas.com/science/landmark-clinical-trial-lsd-mdma-mindmed/" target="_blank">combination</a> of LSD, MDMA, and psychotherapy will soon commence. LSD's effects on <a href="https://clinicaltrials.gov/ct2/show/NCT03866252" target="_blank" rel="noopener noreferrer">Major Depressive Disorder</a> and <a href="https://www.sciencealert.com/first-clinical-trial-shows-micro-doses-of-lsd-can-increase-a-person-s-pain-tolerance" target="_blank">pain management</a> are ongoing. With the <a href="https://www.bloomberg.com/news/articles/2020-09-18/-magic-mushroom-company-moves-toward-mainstream-in-nasdaq-ipo" target="_blank" rel="noopener noreferrer">first psychedelics company</a> to IPO on the American stock market, along with hundreds of millions of dollars of investment flowing into similar companies and organizations, the push for legalized psychedelics intensifies. </p>
Credit: ynsga / Shutterstock<p>Researchers are actively attempting to remove the hallucinogenic component of psychedelics for widespread therapeutic usage—<a href="https://www.healtheuropa.eu/could-ibogaine-offer-a-revolutionary-long-term-solution-to-addiction/100635/" target="_blank">trials</a> using ibogaine for addiction treatment, for example. Identifying the chemical effects of psychedelics on our brains is an essential step in that process.</p><p>Of course, believing psychedelics <em>only</em> matters to brain chemistry is problematic as well. The rituals associated with their use are just as relevant. The "<a href="https://en.wikipedia.org/wiki/Set_and_setting" target="_blank">set and setting</a>" model espoused by Timothy Leary reminds us that biology isn't everything; environmental factors play just as important a role in mental health. </p><p>Isolating specific chemicals without understanding the impact of the drug <em>and</em> the environment overlooks the holistic nature of the psychedelic experience. For example, ketamine trials <a href="https://bigthink.com/surprising-science/ketamine-depression" target="_self">were rushed</a> and could potentially backfire; we can't afford to make that mistake again. </p><p>Still, understanding the pathways LSD utilizes is an important step forward. As Roth says, "Our ultimate goal is to see if we can discover medications which are effective, like psilocybin, for depression but do not have the intense psychedelic actions." In a world where more people are growing anxious and depressed by the day, every intervention should be explored.</p><p> --</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank" rel="noopener noreferrer">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank" rel="noopener noreferrer">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
A team of researchers have discovered the brain rhythmic activity that can split us from reality.