For Electric Cars To Be Viable, Charging Station Locations Need To Be Optimized – Science 2.0

One thing electric car owners who have lost the mystique tell you is that you live your life around them. Some report going to a store like Costco to charge their cars, they need new service panels at their house, and one owner famously blew up his Tesla with dynamite rather than pay $22,000 to replace the batteries when they wore out. An article in the Wall Street Journal was by someone excited to rent an electric car for a trip, only to find they spent more time charging it than sleeping.

But, like ethanol, as long as government mandates and subsidizes it, it is here to stay and won't improve a lot, so it would be wise to think about optimizing charging stations. Otherwise we will continue to have cultural theater like owners looking at their watches and griping at someone already plugged in.

The big problem in mass uptake is not just that it won't improve emissions, it is that utilities are often so regulated they cannot improve the grid. An electric car service at a house is equal in load to another home on the grid so they have to be placed carefully for mass consumer use. They are of no benefit if they are not placed based on travel patterns and user demand but right now they are not, they are only based on how little they will harm the grid.

When charging stations are placed based on what will work best for the existing power system rather than the transportation system, travel flow is not considered at all. Since electric cars are still in the novelty'gimmick/environmental halo stage, users will go out of their way to charge a car but gas stations are placed where users go, and for electric cars to become common they need to be just as convenient.

A new simulation hopes to account for power grids, transportation, and user demand. The limitation is what occurs in all models, from economics to political science - if it is just United Nations-style 'splitting the difference' it gives prestige to bad decisions and makes no one happy. The model uses existing power flow and the routes drivers they take when traveling, hoping to minimize travel time for users.

Does it work? The problem with using nonlinear terms and lots of variables is there is no right answer, you can only converge on an answer - and that is predicated on solving the right problem. If I want to know if a bridge will collapse, I am not going to simulate the whole bridge in some super-fine tetrahedral mesh, I will find areas of concern and model those in detail. But with human behavior you have to pick your spots and that is tricky. With electric cars, duration of charging, time of day and even location are in flux because driving patterns are different.

Then there is the energy generation problem itself. Electric car buyers are more literate than organic food shoppers so eventually they will realize that despite $3 trillion in subsidies, solar and wind have not reduced the share of energy produced by fossil fuels. And at least in the US natural gas has joined nuclear as targets of the anti-science left so we have as much chance of building new plants in 13 populous states as we do large astronomy telescopes - not much.

Yet more charging stations with inconsistent usage patterns are going to require greater need for 'reactive' energy generation, which is only possible using 'always on' plants like natural gas. Scientists can solve the math issue pretty well but fixing culture wars is a challenge no one can face.

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For Electric Cars To Be Viable, Charging Station Locations Need To Be Optimized - Science 2.0

Ancient DNA helps reveal social changes in Africa 50000 years ago that shaped the human story – Roanoke Times

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.)

(THE CONVERSATION) Every person alive on the planet today is descended from people who lived as hunter-gatherers in Africa.

The continent is the cradle of human origins and ingenuity, and with each new fossil and archaeological discovery, we learn more about our shared African past. Such research tends to focus on when our species, Homo sapiens, spread out to other landmasses 80,000-60,000 years ago. But what happened in Africa after that, and why dont we know more about the people who remained?

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Our 2022 study, conducted by an interdisciplinary team of 44 researchers based in 12 countries, helps answer these questions. By sequencing and analyzing ancient DNA (aDNA) from people who lived as long ago as 18,000 years, we roughly doubled the age of sequenced aDNA from sub-Saharan Africa. And this genetic information helps anthropologistslikeus understand more about how modern humans were moving and mingling in Africa long ago.

Tracing our human past in Africa

Beginning about 300,000 years ago, people in Africa who looked like us the earliest anatomically modern humans also started behaving in ways that seem very human. They made new kinds of stone tools and began transporting raw materials up to 250 miles (400 kilometers), likely through trade networks. By 140,000-120,000 years ago, people made clothing from animal skins and began to decorate themselves with pierced marine shell beads.

While early innovations appeared in a patchwork fashion, a more widespread shift happened around 50,000 years ago around the same time that people started moving into places as distant as Australia. New types of stone and bone tools became common, and people began fashioning and exchanging ostrich eggshell beads. And while most rock art in Africa is undated and badly weathered, an increase in ochre pigment at archaeological sites hints at an explosion of art.

What caused this shift, known as the Later Stone Age transition, has been a longstanding archaeological mystery. Why would certain tools and behaviors, which up until that point had appeared in a piecemeal way across Africa, suddenly become widespread? Did it have something to do with changes in the number of people, or how they interacted?

The challenge of accessing the deep past

Archaeologists reconstruct human behavior in the past mainly through things people left behind remains of their meals, tools, ornaments and sometimes even their bodies. These records may accumulate over thousands of years, creating views of daily livelihoods that are really averages over long periods of time. However, its hard to study ancient demography, or how populations changed, from the archaeological record alone.

This is where DNA can help. When combined with evidence from archaeology, linguistics and oral and written history, scientists can piece together how people moved and interacted based on which groups share genetic similarities.

But DNA from living people cant tell the whole story. African populations have been transformed over the past 5,000 years by the spread of herding and farming, the development of cities, ancient pandemics and the ravages of colonialism and slavery. These processes caused some lineages to vanish and brought others together, forming new populations.

Using present-day DNA to reconstruct ancient genetic landscapes is like reading a letter that was left out in the rain: some words are there but blurred, and some are gone completely. Researchers need ancient DNA from archaeological human remains to explore human diversity in different places and times and to understand what factors shaped it.

Unfortunately, aDNA from Africa is particularly hard to recover because the continent straddles the equator and heat and humidity degrade DNA. While the oldest aDNA from Eurasia is roughly 400,000 years old, all sequences from sub-Saharan Africa to date have been younger than around 9,000 years.

Breaking the tropical ceiling

Because each person carries genetic legacies inherited from generations of their ancestors, our team was able to use DNA from individuals who lived between 18,000-400 years ago to explore how people interacted as far back as the last 80,000-50,000 years. This allowed us, for the first time, to test whether demographic change played a role in the Later Stone Age transition.

Our team sequenced aDNA from six individuals buried in what are now Tanzania, Malawi and Zambia. We compared these sequences to previously studied aDNA from 28 individuals buried at sites stretching from Cameroon to Ethiopia and down to South Africa. We also generated new and improved DNA data for 15 of these people, trying to extract as much information as possible from the small handful of ancient African individuals whose DNA is preserved well enough to study.

This created the largest genetic dataset so far for studying the population history of ancient African foragers people who hunted, gathered or fished. We used it to explore population structures that existed prior to the sweeping changes of the past few thousand years.

DNA weighs in on a longstanding debate

We found that people did in fact change how they moved and interacted around the Later Stone Age transition.

Despite being separated by thousands of miles and years, all the ancient individuals in this study were descended from the same three populations related to ancient and present-day eastern, southern and central Africans. The presence of eastern African ancestry as far south as Zambia, and southern African ancestry as far north as Kenya, indicates that people were moving long distances and having children with people located far away from where they were born. The only way this population structure could have emerged is if people were moving long distances over many millennia.

Additionally, our research showed that almost all ancient eastern Africans shared an unexpectedly high number of genetic variations with hunter-gatherers who today live in central African rainforests, making ancient eastern Africa truly a genetic melting pot. We could tell that this mixing and moving happened after about 50,000 years ago, when there was a major split in central African forager populations.

We also noted that the individuals in our study were genetically most like only their closest geographic neighbors. This tells us that after around 20,000 years ago, the foragers in some African regions were almost exclusively finding their partners locally. This practice must have been extremely strong and persisted for a very long time, as our results show that some groups remained genetically independent of their neighbors over several thousand years. It was especially clear in Malawi and Zambia, where the only close relationships we detected were between people buried around the same time at the same sites.

We dont know why people began living locally again. Changing environments as the last Ice Age peaked and waned between about 26,000-11,500 years ago may have made it more economical to forage closer to home, or perhaps elaborate exchange networks reduced the need for people to travel with objects.

Alternatively, new group identities may have emerged, restructuring marriage rules. If so, we would expect to see artifacts and other traditions like rock art diversify, with specific types clumped into different regions. Indeed, this is exactly what archaeologists find a trend known as regionalization. Now we know that this phenomenon not only affected cultural traditions, but also the flow of genes.

As always, aDNA research raises as many questions as answers. Finding central African ancestry throughout eastern and southern Africa prompts anthropologists to reconsider how interconnected these regions were in the distant past. This is important because central Africa has remained archaeologically understudied, in part because of political, economic and logistical challenges that make research there difficult.

Additionally, while genetic evidence supports a major demographic transition in Africa after 50,000 years ago, we still dont know the key drivers. Determining what triggered the Later Stone Age transition will require closer examination of regional environmental, archaeological and genetic records to understand how this process unfolded across sub-Saharan Africa.

Finally, this study is a stark reminder that researchers still have much to learn from ancient individuals and artifacts held in African museums, and highlights the critical role of the curators who steward these collections. While some human remains in this study were recovered within the past decade, others have been in museums for a half-century.

Even though technological advances are pushing back the time limits for aDNA, it is important to remember that scientists have only just begun to understand human diversity in Africa, past and present.

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Ancient DNA helps reveal social changes in Africa 50000 years ago that shaped the human story - Roanoke Times

Food for thought on the climate crisis | Courier-Herald – Enumclaw Courier-Herald

Too many people think they know more than experts.

For the sake of discussion lets say there was a very rich man who had been feeling poorly for some time and he couldnt understand what could be the matter, so he went to doctor after doctor to find out what the problem might be. Not being happy with the diagnosis, he continued until he had consulted with 100 doctors.

Out of those 100 doctors, 97 of them came up with the same diagnosis, which was, if he didnt make some serious changes in his lifestyle he was going to become very seriously ill and could quite possibly die. Three of those doctors said that his problem was not caused by his lifestyle and it was just the natural course of living and he neednt do anything.

Now lets extrapolate that situation to our planet. Ninety-seven percent of the climate scientists in the world are of the opinion that global warming is a serious problem, it is caused by human behavior and that drastic measures need to be taken to save our planet from dire consequences. One example of the huge problems that may be caused by our inaction is the permafrost in the Arctic Circle. If this starts to melt it will release an unstoppable supply of carbon dioxide into the atmosphere that may lead to our planet being uninhabitable for human beings.

Unfortunately for us, there is a large segment of the population who choose to believe the three percent of those climate scientists that say that we are not causing global warming, so there is no need to change our lifestyles. We have come to a point, in our country at least, where there is a lot of My ignorance is as good as your knowledge moments, not only with science but with politics too.

For instance, the fact that seventy-four million people voted for a man who was a failure at nearly every business he started, filing bankruptcy several times, stiffing his investors, his suppliers and his contractors, was made by the courts to pay students of his sham university $25 million dollars and fined $5 million for using money from his own charity for private purposes and on top of everything else attempted to overthrow our duly elected government. And yet today he still has a very large following of voters.

Unfortunately, these are the times we are living in and this is my small attempt to interject some reason into the conversation.

Larry Benson

Enumclaw

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Food for thought on the climate crisis | Courier-Herald - Enumclaw Courier-Herald

New research indicates that romantic successes and failures can have profound impacts on how men think – PsyPost

A mans popularity in the dating market can influence his sexual attitudes and even his views about socio-political issues, according to new research published in the scientific journal Adaptive Human Behavior and Physiology. The study offers new experimental evidence that being unpopular with the opposite sex can shift heterosexual mens views about the minimum wage and healthcare.

It may seem farfetched to say that an individuals dating life can influence the individuals socio-political attitudes. Yet, it is becoming more evident that romantic successes and failures in our everyday dating life can have profound impacts on the ways we think and act, said study author Francesca R. Luberti, a postdoctoral research fellow at Nipissing University in North Bay.

One needs to look no further than the incel phenomenon to have a concrete example of how dating can influence politics. Involuntary celibate (incel) men (an internet subculture thats become more popular in recent years) hold misogynistic attitudes and oppose gender equality because they believe they are unfairly rejected by women. I was interested in these phenomena, and I wanted to experimentally test whether dating popularity with opposite-sex potential partners could really affect heterosexual peoples socio-political attitudes.

In the study, which included 237 single heterosexual young adults, the participants first rated their self-perceived level of desirability as a romantic partner. The participants were then asked to record a short video of themselves in which they explained why they would make a good dating partner.

The participants were told that this video would be viewed by five opposite-sex peers, who would provide feedback in the form of brief video responses. While waiting for the video feedback, the participants completed demographic questionnaires and watched an ostensible loading page where links to the feedback videos slowly appeared one by one.

In reality, however, the video feedback had been prerecorded by actors and actresses. The participants randomly received one of six combinations of feedback, ranging from all positive to all negative.

After viewing the feedback videos, the participants then completed questionnaires related to traditional gender roles, casual sex, the minimum wage and healthcare, and implicit sexual and political attitudes.

We found that unpopular men (those who received a higher number of rejections from their peers) reported less support for casual sex than popular men (those who received a higher number of positive responses). Dating popularity did not affect any of womens socio-political attitudes, Luberti told PsyPost.

We also found that unpopular men reported lower positive affect (positive emotions such as happiness, enthusiasm, and pride) than popular men, and in turn men with lower positive affect reported less support for casual sex, as well as less support for increasing the minimum wage and access to healthcare, than men with higher positive affect.

Thus, the main take away from this study is that womens socio-political attitudes do not seem to be affected by dating popularity, whereas mens dating popularity causes changes in mens positive emotions and these changes in turn can shift some, although not all, of mens socio-political attitudes, Luberti said.

The new findings are in line with previous research, which has found that dating popularity is associated with mens support (or lack of support) for casual sex.

While earlier studies had already shown that dating popularity affects mens attitudes toward casual sex, to the best of my knowledge, this is the first experiment showing that experimentally manipulated dating feedback can also indirectly affect attitudes toward the minimum wage and access to healthcare through changes in mens positive emotions, Luberti explained.

Since these findings were not predicteda priori, further research is necessary to understand why we found significant relationships between dating popularity, positive emotions, and these pro-social attitudes in heterosexual men.

Further research should also try to replicate these findings in other samples, since we only collected data from young heterosexual Australian participants. It would be important to replicate these findings in other countries or include non-heterosexual participants, for example, to further prove the robustness of these patterns, Luberti said.

Moreover, with this study, we could only prove that unpopular men reported significantly different attitudes than popular men, but we could not show whether it is receiving more rejections, receiving fewer positive responses, or both that causes shifts in attitudes. These mechanisms should also be further investigated in future research.

The new findings are also in line with research that has indicated the incel subculture is driven in part by mating markets with higher competition among men.

Overall, this study provides evidence that dating can impact some of heterosexual mens politics, Luberti said. Phenomena like the incel subculture have caused real-world violence, and in recent years increasing political polarization has resulted in more political conflicts. Scientific research that focuses on mating and reproductive strategies can provide valuable insights into the causes of these current social issues.

The study, Changes in Positive Affect Due to Popularity in an Experimental Dating Context Influence Some of Mens, but Not Womens, Socio-Political Attitudes, was authored by Francesca R. Luberti, Khandis R. Blake, and Robert C. Brooks.

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New research indicates that romantic successes and failures can have profound impacts on how men think - PsyPost

The ‘Benjamin Button’ effect: Scientists can reverse aging in mice; the goal is to do the same for humans – WDJT

By Sandee LaMotte, CNN

(CNN) -- In molecular biologist David Sinclair's lab at Harvard Medical School, old mice are growing young again.

Using proteins that can turn an adult cell into a stem cell, Sinclair and his team have reset aging cells in mice to earlier versions of themselves. In his team's first breakthrough, published in late 2020, old mice with poor eyesight and damaged retinas could suddenly see again, with vision that at times rivaled their offspring's.

"It's a permanent reset, as far as we can tell, and we think it may be a universal process that could be applied across the body to reset our age," said Sinclair, who has spent the last 20 years studying ways to reverse the ravages of time.

"If we reverse aging, these diseases should not happen. We have the technology today to be able to go into your hundreds without worrying about getting cancer in your 70s, heart disease in your 80s and Alzheimer's in your 90s." Sinclair told an audience at Life Itself, a health and wellness event presented in partnership with CNN.

"This is the world that is coming. It's literally a question of when and for most of us, it's going to happen in our lifetimes," Sinclair told the audience.

"His research shows you can change aging to make lives younger for longer. Now he wants to change the world and make aging a disease," said Whitney Casey, an investor who is partnering with Sinclair to create a do-it-yourself biological age test.

While modern medicine addresses sickness, it doesn't address the underlying cause, "which for most diseases, is aging itself," Sinclair said. "We know that when we reverse the age of an organ like the brain in a mouse, the diseases of aging then go away. Memory comes back; there is no more dementia.

"I believe that in the future, delaying and reversing aging will be the best way to treat the diseases that plague most of us."

In Sinclair's lab, two mice sit side by side. One is the picture of youth, the other gray and feeble. Yet they are brother and sister, born from the same litter -- only one has been genetically altered to age faster.

If that could be done, Sinclair asked his team, could the reverse be accomplished as well? Japanese biomedical researcher Dr. Shinya Yamanaka had already reprogrammed human adult skin cells to behave like embryonic or pluripotent stem cells, capable of developing into any cell in the body. The 2007 discovery won the scientist a Nobel Prize, and his "induced pluripotent stem cells," soon became known as "Yamanaka factors."

However, adult cells fully switched back to stem cells via Yamanaka factors lose their identity. They forget they are blood, heart and skin cells, making them perfect for rebirth as "cell du jour," but lousy at rejuvenation. You don't want Brad Pitt in "The Curious Case of Benjamin Button" to become a baby all at once; you want him to age backward while still remembering who he is.

Labs around the world jumped on the problem. A studypublished in 2016 by researchers at the Salk Institute for Biological Studies in La Jolla, California, showed signs of aging could be expunged in genetically aged mice, exposed for a short time to four main Yamanaka factors, without erasingthe cells' identity.

But there was a downside in all this research: In certain situations, the altered mice developed cancerous tumors.

Looking for a safer alternative, Sinclair lab geneticist Yuancheng Lu chose three of the four factors and genetically added them to a harmless virus. The virus was designed to deliver the rejuvenating Yamanaka factors to damaged retinal ganglion cells at the back of an aged mouse's eye. After injecting the virus into the eye, the pluripotent genes were then switched on by feeding the mouse an antibiotic.

"The antibiotic is just a tool. It could be any chemical really, just a way to be sure the three genes are switched on," Sinclair said. "Normally they are only on in very young developing embryos and then turn off as we age."

Amazingly, damaged neurons in the eyes of mice injected with the three cells rejuvenated, even growing new axons, or projections from the eye into the brain. Since that original study, Sinclair said his lab has reversed aging in the muscles and brains of mice and is now working on rejuvenating a mouse's entire body.

"Somehow the cells know the body can reset itself, and they still know which genes should be on when they were young," Sinclair said. "We think we're tapping into an ancient regeneration system that some animals use -- when you cut the limb off a salamander, it regrows the limb. The tail of a fish will grow back; a finger of a mouse will grow back."

That discovery indicates there is a "backup copy" of youthfulness information stored in the body, he added.

"I call it the information theory of aging," he said. "It's a loss of information that drives aging cells to forget how to function, to forget what type of cell they are. And now we can tap into a reset switch that restores the cell's ability to read the genome correctly again, as if it was young."

While the changes have lasted for months in mice, renewed cells don't freeze in time and never age (like, say, vampires or superheroes), Sinclair said. "It's as permanent as aging is. It's a reset, and then we see the mice age out again, so then we just repeat the process.

"We believe we have found the master control switch, a way to rewind the clock," he added. "The body will then wake up, remember how to behave, remember how to regenerate and will be young again, even if you're already old and have an illness."

Studies on whether the genetic intervention that revitalized mice will do the same for people are in early stages, Sinclair said. It will be years before human trials are finished, analyzed and, if safe and successful, scaled to the mass needed for a federal stamp of approval.

While we wait for science to determine if we too can reset our genes, there are many other ways to slow the aging process and reset our biological clocks, Sinclair said.

"The top tips are simply: Focus on plants for food, eat less often, get sufficient sleep, lose your breath for 10 minutes three times a week by exercising to maintain your muscle mass, don't sweat the small stuff and have a good social group," Sinclair said.

All these behaviors affect our epigenome, proteins and chemicals that sit like freckles on each gene, waiting to tell the gene "what to do, where to do it, and when to do it," according to the National Human Genome Research Institute. The epigenome literally turns genes on and off.

What controls the epigenome? Human behavior and one's environment play a key role. Let's say you were born with a genetic predisposition for heart disease and diabetes. But because you exercised, ate a plant-focused diet, slept well and managed your stress during most of your life, it's possible those genes would never be activated. That, experts say, is how we can take some of our genetic fate into our own hands.

The positive impact on our health from eating a plant-based diet, having close, loving relationships and getting adequate exercise and sleep are well documented. Calorie restriction, however, is a more controversial way of adding years to life, experts say.

Cutting back on food -- without inducing malnutrition -- has been a scientifically known way to lengthen life for nearly a century. Studies on worms, crabs, snails, fruit flies and rodents have found restricting calories "delay the onset of age-related disorders" such as cancer, heart disease and diabetes, according to the National Institute on Aging. Some studies have also found extensions in life span: In a 1986 study, mice fed only a third of a typical day's calories lived to 53 months -- a mouse kept as a pet may live to about 24 months.

Studies in people, however, have been less enlightening, partly because many have focused on weight loss instead of longevity. For Sinclair, however, cutting back on meals was a significant factor in resetting his personal clock: Recent tests show he has a biological age of 42 in a body born 53 years ago.

"I've been doing a biological test for 10 years now, and I've been getting steadily younger for the last decade," Sinclair said. "The biggest change in my biological clock occurred when I ate less often -- I only eat one meal a day now.That made the biggest difference to my biochemistry."

Sinclair incorporates other tools into his life, based on research from his lab and others. In his book "Lifespan: Why We Age and Why We Don't Have To," he writes that little of what he does has undergone the sort of "rigorous long-term clinical testing" needed to have a "complete understanding of the wide range of potential outcomes." In fact, he added, "I have no idea if this is even the right thing for me to be doing."

With that caveat, Sinclair is willing to share his tips: He keeps his starches and sugars to a minimum and gave up desserts at age 40 (although he does admit to stealing a taste on occasion). He eats a good amount of plants, avoids eating other mammals and keeps his body weight at the low end of optimal.

He exercises by taking a lot of steps each day, walks upstairs instead of taking an elevator and visits the gym with his son to lift weights and jog before taking a sauna and a dip in an ice-cold pool. "I've got my 20-year-old body back," he said with a smile.

Speaking of cold, science has long thought lower temperatures increased longevity in many species, but whether it is true or not may come down to one's genome, according to a 2018 study. Regardless, it appears cold can increase brown fat in humans, which is the type of fat bears use to stay warm during hibernation. Brown fat has been shown to improve metabolism and combat obesity.

Sinclair takes vitamins D and K2 and baby aspirin daily, along with supplements that have shown promise in extending longevity in yeast, mice and human cells in test tubes.

One supplement he takes after discovering its benefits is 1 gram of resveratrol, the antioxidant-like substance found in the skin of grapes, blueberries, raspberries, mulberries and peanuts.

He also takes 1 gram of metformin, a staple in the arsenal of drugs used to lower blood sugars in people with diabetes. He added it after studies showed it might reduce inflammation, oxidative damage and cellular senescence, in which cells are damaged but refuse to die, remaining in the body as a type of malfunctioning "zombie cell."

However, some scientists quibble about the use of metformin, pointing to rare cases of lactic acid buildup and a lack of knowledge on how it functions in the body.

Sinclair also takes 1 gram of NMN, or nicotinamide mononucleotide, which in the body turns into NAD+, or nicotinamide adenine dinucleotide. A coenzyme that exists in all living cells, NAD+ plays a central role in the body's biological processes, such as regulating cellular energy, increasing insulin sensitivity and reversing mitochondrial dysfunction.

When the body ages, NAD+ levels significantly decrease, dropping by middle age to about half the levels of youth, contributing to age-related metabolic diseases and neurodegenerative disorders. Numerous studies have shown restoring NAD+ levels safely improves overall health and increases life span in yeast, mice and dogs. Clinical trials testing the molecule in humans have been underway for three years, Sinclair said.

"These supplements, and the lifestyle that I am doing, is designed to turn on our defenses against aging," he said. "Now, if you do that, you don't necessarily turn back the clock. These are just things that slow down epigenetic damage and these other horrible hallmarks of aging.

"But the real advance, in my view, was the ability to just tell the body, 'Forget all that. Just be young again,' by just flipping a switch. Now I'm not saying that we're going to all be 20 years old again," Sinclair said.

"But I'm optimistic that we can duplicate this very fundamental process that exists in everything from a bat to a sheep to a whale to a human. We've done it in a mouse. There's no reason I can think of why it shouldn't work in a person, too."

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The 'Benjamin Button' effect: Scientists can reverse aging in mice; the goal is to do the same for humans - WDJT

Discriminating tastes: Why academia must tackle its "race science" problem – Salon

Former University of Toronto Professor of Clinical Psychology Jordan Peterson recently received a flurry of condemnation for a tweet in which he criticizedSports Illustrated's choice to put plus-size model Yumi Nu on the magazine's cover. His tweet (below) not only criticized her looks, but also suggested that her appearance was an authoritarian attempt by the left to force people like him to appreciate her beauty.

The backlash to Peterson's comments was swift and broad, and included social media influencers; online political commentators (likeHasan Piker andVaush); independent news outlets (like The Young Turks); mainstream news sources (NBC News, New York Post); and even international news outlets (The Independent, and Toronto Sun). In America's current political climate, incidents like the one caused by the aforementioned tweet are becoming more common as culture war issues are at the forefront of the public mind. Popular intellectual figures like Peterson have built their careers off of stoking these hot-button issues and then claiming that they are being persecuted when others disagree with them.

Interestingly, much of the blowback ignored Peterson's follow up tweet (above), in which he justifies his position by linking to scientific articles that purportedly validate his opinion. Peterson raises an interesting question: Can science be used to measure whether or not someone is attractive? While some recent studies have tried to do just that, far more studies refute these claims.

The sociology of human sexuality and race has long held that concepts like beauty and race are social constructions determined by a range of cultural, biological, and other complex social factors. On some innate level, just about everyone recognizes this truism; famously, it was embodied in the classic The Twilight Zone episode "Eye of the Beholder," whose lesson is that beauty is a local characteristic rather than a universal one. Yet, the intellectual dark web (of which Peterson is an adherent) and practitioners of this kind of "science" try to apply their model to nearly everything linking and reducing all kinds of aspects of human behavior as serving an evolutionary function.

The crowd that engages in this type of oft-sophistic debate over beauty should be familiar to anyone who follows the machinations of this latest iteration of the culture wars. Sometimes dubbed the Intellectual Dark Web (or IDW for short), they constitute a group of disgraced academics and other pseudo intellectuals (including podcaster Joe Rogan, and conservative commentator Dave Rubin) who claim that their voices are being silenced by traditional institutions who have become overly concerned with political correctness or "wokeness."

Peterson's claims run the full spectrum of biological determinism, from justifying social hierarchies as natural to claiming patriarchy should be the preferred organizing principle in societies.

However, researchers in the field of evolutionary studies (an area which focuses on how much of our behavior is a product of our biology) whose work is well-regarded tend to be far more cautious than Peterson and his ilk in their claims as to what we can definitely say about the so-called science of beauty. Against the overly deterministic model posed by the IDW, current consensus among scholars in this field is that human "nature" is a complex combination of biology and other social factors. These researchers are quick to note that they can't tell us with any great deal of precision what their findings necessarily mean for society at large.

The kind of model advocated by the IDW more closely resembles that of the 18th and 19th century biological determinism the kind that served as the basis for eugenics programs in Nazi Germany and even here in the United States. Peterson's claims run the full spectrum of biological determinism, from justifying social hierarchies as natural to claiming patriarchy should be the preferred organizing principle in societies. He also appears, at points in his book, to vindicate violent men like the Buffalo shooter or the Uvalde shooter by asserting that young men have to endure an unfair burden. To say that the ideas espoused by Peterson and the IDW connect to white supremacist ideology is more than just conjecture, as their ideas are observably trickling down from academia to far-right groups online.

RELATED:How the far right co-opted science

Indeed, the parallels between the rhetoric of the Buffalo shooter, and of the rhetoric espoused by Peterson and the like, are eerily similar. Far-right groups rejoice in Peterson's claims that hierarchies are natural and good for society, as they serve as a "legitimate" scientific basis for promoting racist ideologies. Laced throughout the manuscript left behind by the Buffalo shooter are references to a range of claims espoused by race scientists. These include tweets, memes, and links to prominent thinkers in this field like Steven Pinker and his colleagues who have published and espoused flawed literature directly cited by the shooter. The most infamous of these models is Charles Murray's book "The Bell Curve," in which he argues that intelligence and race are correlated the implication being that most people of color are "naturally" somehow less intelligent.These models continue to be invoked by prominent academics like Stanley Goldfarb, a former Dean of Medicine and current faculty at the University of Pennsylvania's medical school, who also opposes anti-racist efforts in medicine.

Taken together, these events suggest that biological determinism has permeated the ivory tower of academia more than many realize. While some of the examples mentioned here are explicit in their bigotry, there are far more cases of miscommunicated or poorly communicated scientific research being co-opted by far-right groups.

Some anti-racist academics in genetics have criticized their colleagues (above) and called for change from within. They emphasize that scientists can and should protect against the exploitation of their work in recognizing the importance of clearly communicating their findings.

When scientists fail to consider the ways their ideas might be used, for good and for bad, the results can be disastrous. Such was the case when some sociologistslevied a social constructionist critique of the use of the psychiatric system, which was subsequently used by conservatives to justify dismantling the state public health system in the United States. Scientists must use caution when trying to convey their ideas lest they be used to justify heinous acts, including terrorism.

The radicalization of the Buffalo shooter should serve as a warning to other scholars, as he was one in a long line of domestic terrorists who relied heavily upon "race science" to justify their actions.

The radicalization of the Buffalo shooter should serve as a warning to other scholars, as he was one in a long line of domestic terrorists who relied heavily upon "race science" to justify their actions. The same kinds of logic have also motivated people to commit heinous attacks against the LGBTQ+ community.

While the Buffalo shooter may have lacked the scientific literacy necessary to understand the studies he cites, researchers must work to not be complicit in this process. Whether it be scientific racism to justify one's beliefs, or a lack of full consideration as to the larger impact of one's findings, scientists need to better understand how working in science is a social activity. Science itself is a powerful tool when used in pursuit of helping lead the way towards the betterment of society, and it is equally a tool for harm when used to naturalize hierarchies and inequality found throughout society.

Frankfurt School philosopher Max Horkheimer famously wrote a critique of instrumental reason, in which Horkheimer argued that science could be co-opted if it was not consciously guided by those practicing it. This was the focus of his classic work, "The Eclipse of Reason," in which he showed how the Nazi party weaponized science by treating it as an end to itself, rather than a tool to be harnessed in pursuit of an goal. Today we face the same issues and problems in science, and for our collective good we must decide to what ends these tools are used and what we as a society wish to prioritize.

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Discriminating tastes: Why academia must tackle its "race science" problem - Salon

Is Bitcoin Immune To Government Regulation? – Bitcoin Magazine

Jesse Colzani is a regulatory specialist and Bitcoin researcher.

When asked whether the Bitcoin network can be regulated or not, people tend to answer in a binary way. On one side, there are those who say that everything can be regulated. On the other, there are those who believe that Bitcoin has already irreversibly separated money from the state. This article is an attempt to better understand what Bitcoin regulation depends on and what are the tools that regulators can reasonably use to limit its adoption.

For the purpose of this article, regulation is considered as state-mandated legal restrictions. But laws are not the only forces shaping society. In what is often referred to as the pathetic dot theory, Professor Lawrence Lessig identifies three other forces that constrain the action of an individual.

Each force can intentionally or not influence other ones. Laws can limit deforestation (architecture), social norms can shape markets, and weather (architecture) can affect agricultural production and food prices.

Forces can have an influence on other forces

When a law cannot directly target individuals, lawmakers look to regulate other forces. This happens when the government causes the price of cigarettes to increase (market), when it prohibits the use of specific words on TV to influence citizens behavior (social norms) or when it builds concrete barriers to create pedestrian zones (architecture).

Law can impact markets, architecture and social norms

But can laws always influence architecture? Can laws make a virus disappear? In todays world, highly contagious viruses cannot be eradicated due to a combination of biological reasons (architecture), financial constraints (market) and hostility to restrictions (social norms).

Like a virus, Bitcoin spreads globally (mutating when necessary) and depends on the right market incentives or socio-political momentum. Lawmakers cant shut down Bitcoin nor can they eradicate a virus, but they can use legal restrictions to mitigate the risk of specific undesired outcomes.

Law can have a direct impact on individuals

As long as one has a phone and an internet connection, she will be able to use Bitcoin. The efficacy of direct enforcement therefore depends on the jurisdiction where it takes place. In fact, only a disproportionate restriction of individual freedom might limit Bitcoin adoption in the short term (underground peer-to-peer markets will probably emerge in the long run).

Also, individuals tend to be more willing to violate laws when their money is at stake. That's why the past decade is full of instances where software developers, political activists and criminals used more or less sophisticated techniques to escape the governments scrutiny on their bitcoin.

Law can impact architecture

Although John Perry Barlows Declaration of Independence of Cyberspace is still relevant to some peoples lifestyle today, governments generally exercise a certain degree of control over the internet architecture. In fact, the data that flows through devices goes through centralized bottlenecks that make it possible for public authorities to shut down websites, identify anonymous users and control online traffic.

Bitcoin is different because its significantly more decentralized than most web applications we use today. Thanks to a strong network of nodes and mining rigs, changing the blockchain would be a Herculean task for any government.

At the same time, Bitcoin does rely on the internet infrastructure for nodes to communicate. In theory, this gives lawmakers a regulatory access point over the technical infrastructure. For example, since Bitcoin transactions are not encrypted, internet service providers could use special techniques to recognize them and even decide to not process them. However, even with the most draconian measures in place, experienced users will always have ways to broadcast transactions to the network (including last resort options such as SMS and Morse code).

Another solution would be to target core developers. This is a bad idea for at least two reasons. First, if threatened, identifiable developers could easily disappear and continue their work anonymously. Second, because the Bitcoin community relies on wide consensus, even the most influential developers wouldnt be able to push government-imposed changes into the code.

Law can impact markets

Governments can offer their citizens compelling market incentives to slow Bitcoin adoption or maintain control over the money flows. For example, the government of El Salvador offered $30 to every citizen who downloaded the Chivo wallet a custodial solution where the government has full control of the funds.

The most popular way governments currently attempt to regulate Bitcoin is through exchanges, liquidity providers and other intermediaries. By complying with know your customer (KYC) and anti-money laundering (AML) regulations, these new banks are able to offer compelling prices and attract the most inexperienced users. This has important consequences for the fungibility of the bitcoin supply and probably constitutes one of the greatest threats to Bitcoins promise of individual self-sovereignty.

It is not clear if, when and how governments will introduce central bank digital currencies (CBDCs) into their economies, but just like a government could promote the use of its CBDC through economic incentives, it could disincentivize bitcoin payments. For example, fees to access public services or local taxes could be reduced when using a government-issued digital currency while being full-priced or even more expensive if using bitcoin. This is important because while CBDCs will not have an impact on the network per se, they can slow down the adoption of bitcoin. Such an approach is often defined as libertarian paternalism, since individuals can freely choose whether they want to opt in or opt out of a specific system.

Law can impact social norms

Its undeniable that a lot of institutional skepticism shaped the publics perception of Bitcoin in a negative way. In fact, laws can attempt to shape the public perception in a variety of ways. For example, banning Bitcoin-related words on TV or establishing school programs that focus on the risks of using bitcoin.

Policymakers could even go a step further and promote bottom-up campaigns as an attempt to change the Bitcoin code. Although not backed by any public authority, a rather unconventional coalition is attempting such a strategy.

Just like we can assume that no government thinks it can completely eliminate a virus from its country, regulators finally understood that the same applies to the Bitcoin network, and their best option is to try limiting the way it spreads. Rather than taking the risk of watching their monetary power slowly erode, governments will likely experiment with different combinations of the tools described above to slow down the hyperbitcoinization process.

Bitcoin was engineered to be an extremely secure and decentralized system, but one needs to remember that its most important components are humans, which can be unreliable and unpredictable. Governments are not always ahead of the curve on understanding technology, but they do have a successful track record in driving human behavior.

This is a guest post by Jesse Colzani. Opinions expressed are entirely their own and do not necessarily reflect those of BTC Inc. or Bitcoin Magazine.

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Is Bitcoin Immune To Government Regulation? - Bitcoin Magazine

GM’s Cruise Wins the Race to Charge for Driverless Rides – The Drive

As of Thursday, June 2, GM's self-driving car service Cruise, secured a permit to charge customers for driverless car rides in San Francisco. With federal regulations moving too slowly, self-driving services such as Cruise, Google's Alphabet Inc., and Waymo have been turning toward state and even city legislators to help push driverless car laws forward. According to Reuters, Cruise just took a big step forward in San Francisco and will have up to 30 driverless Chevy Bolts charging customers for rides in just a couple of weeks.

The California Public Utilities Commission (CPUC) approved Cruise's permit in a 4-0 vote, beating out Alphabet and Waymo for San Francisco's driverless ride-hailing privileges. Previously, Cruise and Waymo vehicles had been testing self-driving vehicles in San Francisco but they were either for employees or free public testing and almost always had a safety driver behind the wheel in case of emergency. Now, Cruise can actually charge customers, as a fully-functioning, driverless ride-hailing service.

"This resolution marks another important step in that effort," said CPUC commissioner Commissioner Clifford Rechtschaffen. "It will allow our staff to continue to gather very important data that will support the development of future phases."

There will be some pretty strict limitations on when and how Cruise's driverless taxis will work. Not only will they be limited to 30 miles per hour, they will be restricted from highways, geo-fenced into areas that avoid downtown, restricted from driving in harsh weather such as heavy rain or fog, and will only be allowed to operate between the hours of 10 p.m. and 6 a.m. There were some concerns from local police and fire departments about safety, after incidents of self-driving Cruise test vehicles causing safety hazards, such as blocking a firetruck during a three-alarm fire and allowing passengers to exit the car in the middle of the street.

Another recent incident saw a self-driving Cruise car stop unexpectedly, causing a cyclist to crash into it, sustaining injuries. The cyclist's lawsuit was settled out of court, last month. There were also incidents where Cruise vehicles were unable to drive outside of lane markings, which caused issues with parked trucks or cyclists on the side of the road. However, Cruise has apparently fixed all of those issues well enough for the CPUC board to approve its permit.

While there are still questions surrounding how a completely driverless car can respond to unpredictable human behavior, Cruise's cars apparently lean toward caution. Cruise claims its vehicles are programmed to understand the unpredictability of human drivers and drive incredibly defensively.

We're likely still a long way from fully-functioning driverless taxis, which are able to drive everywhere and anywhere entirely on their own. However, this is the first of many steps to reach that point and San Francisco residents should be able to partake in some of the city's first official robo-taxi rides in just a few weeks.

Got tips? Send them to nico.demattia@thedrive.com

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GM's Cruise Wins the Race to Charge for Driverless Rides - The Drive

The Woman Who Fought to End the ‘Pernicious’ Scourge of Kissing – Smithsonian Magazine

At a time of widespread public health crises and evolving ideas about how illnesses spread, kissing was an easily avoidable vector of disease. Unfortunately for Imogene Rechtin, most people proved unwilling to give it up. Illustration by Meilan Solly / Screenshots via Newspapers.com, lips vector by Vecteezy

Imogene Rechtin was seized by disgust and terror. Standing in a reception line at a womens society event in Cincinnati in 1910, she watched as the hostess approached, welcoming each of the 30 or 40 women ahead of her with a kiss on either the cheek or the lips.

If only I had something to show that would prevent my being kissed, she thought to herself.

A middle-aged mother of two with a deep-seated fear of germs, Rechtin had long since convinced her husband of the pernicious health risks associated with promiscuous kissing. At the time, a woman of Rechtins class could hardly go a day without encountering a smattering of smooches. A peck on the mouth was the standard greeting between female friends, as common as a handshake today. This Cincinnati soire, with its blatant swapping of bacteria, proved to be the final straw for Rechtin, who over the next year and a half spearheaded a short-lived, largely unsuccessful national movement to abandon the practice of kissing.

Naming her group the Worlds Health Organization, Rechtin distributed circulars outlining the case against kissing and mailed out buttons labeled Kiss Not for a 5-cent contribution. She and her hundreds of acolytesmost of them womencampaigned against kissing in all contexts, from the privacy of the bedroom to casual gatherings with friends.

It is only in unity that sufficient strength can be gained to convince the civilized world that kissing is pernicious and unhealthful, Rechtin declared in a public appeal.

Enduring the ridicule of journalists and the scorn of the medical community, the push ultimately failed to sway public opinion at large. But Rechtins concerns werent entirely unfounded. At a time of widespread public health crises and evolving ideas about how illnesses spread, kissing was an easily avoidable vector of disease.

Until recently, Rechtins story was more or less lost to history. Now, however, a new article in the Journal of Social History recounts her ill-fated campaign.

She was basically right, says study author Peter C. Baldwin, a social historian at the University of Connecticut who stumbled across Rechtins story while trawling through newspaper archives. She basically understood what medical science was teaching us at that time.

Behind Rechtins revulsion was a shifting understanding of disease. In the decades following the Civil War, doctors and researchers built on a nascent understanding of germs to refute outdated ideas about the causes of infection, like miasma theory, which blamed the foul air of decay and refuse. The real culprits, experts were beginning to realize, were microscopic germsbacteria and viruses that could be readily transferred from person to person.

That discovery sets off this evolution of what people get crazy about, says Nancy Tomes, a historian of the Progressive Era at New Yorks Stony Brook University and the author of The Gospel of Germs: Men, Women, and the Microbe in American Life. By the turn of the century, its casual infectioncoughing, spitting, sneezing, hand shaking. ... Any skin-to-skin contact ... really just [has] almost a phobic quality to it.

When Rechtin started her campaign, typhoid, cholera and syphilis outbreaks were still common occurrences. Tuberculosis, for which no cure was then known, was responsible for as many as one-third of all deaths in Europe in the 19th century.

In the first half of that century, public health officials sought to combat these diseases with collective civic measures like sewer works and clearing out low-income housing. But as the unseen threat of germs became more widely known, says Tomes, experts placed an increasing emphasis on changing human behavior.

The old public health sought the sources of infectious disease in the surroundings of man; the new finds them in man himself, wrote health official Hibbert Hill in 1913.

In 1896, New York City passed an anti-spitting ordinance that aimed to curb the spread of tuberculosis, with penalties of up to one year in jail. Elsewhere, physicians decried the use of a common Catholic communion cup as a menace to public health. In circulars distributed to school boards, public health crusaders like Charles V. Chapin implored teachers to instruct children on the dangers of venereal disease and the virtues of toothbrushing.

Children should be taught that their bodies are their own private possessions, that personal cleanliness is a duty, [and] that the mouth is for eating and speaking, wrote Chapin in 1901.

With this shift, responsibility for public health moved definitively from city hall to the suburbs, where women like Rechtin often led the charge. Under an already old-fashioned theory of gender politics, enforcing the norms of proper comportment and behavior fell firmly in the woman-dominated domestic sphere.

By Rechtins time, says Tomes, women of means had long been using this ideology to get out of the house and spearhead campaigns for the improvement of society. In a seminal 1984 essay, historian Paula Baker described these movements as municipal housekeeping, a way in which women sought to bring the benefits of motherhood to the public sphere.

Women become critical as foot soldiers in helping male political leaders, Tomes says, a kind of grassroots shock troops for progressive causes.

Setting up the Worlds Health Organization in her Cincinnati living room, Rechtin was following an already well-trod[den] path, according to Tomes. Even her hostility to kissing wasnt wholly unprecedented. Per Baldwins paper, several previous health campaigns attempted to limit the practice, albeit not quite so zealously. An Atlanta woman named Avis Boyce, for instance, traveled the country in 1907 to stop the widespread practice of baby kissing. As she told the Chicago Tribune, There is no way to pasteurize kisses. (Boyce acknowledged that grown-ups were hopeless cases unlikely to ever quit kissing.)

As if to inspire future Rechtins, in 1908, the Washington Post even ran a story in which a Philadelphia doctor said she firmly believe[d] that the day will come within a generation when a formidable anti-kissing movement will be established.

[K]issing practically will be confined to the lower classes, she predicted, the educated people having been brought up to see the evils of the habit.

Compared to other health campaigns of her day, Rectins campaign against kissing was far from unusual. The turn of the 20th century saw a dizzying array of wellness gurus and gospels, some far more bizarre and groundless than a ban on kissing.

Like Rechtins, many of these campaigns saw human behavior as the key to disease control, seeking in particular to control lustful, impure or excessive impulses. Political scientist Sylvia Tesh, in her 1982 history of public health, connected this trend to a widespread belief that one could defeat disease by throw[ing] off ancient artificial strictures and liv[ing] in a manner consistent with natural law.

Sylvester Graham, inventor of the graham cracker, cautioned against the disease-causing properties of meat and hot food, instead advocating a simple vegetarian lifestyle. Fasting fads numbering in the dozens demanded adherents weigh their stool and undergo daily enemas to avoid the dangers of fecal self-poisoning.

Many of these campaigns were far more successful than Rechtins. Horace Fletcher, the Great Masticator, advocated chewing food until it liquefied and poured naturally down the throat; his advice proved so popular that it spawned the term fletcherize, meaning to chew food slowly and thoroughly. Never forcibly swallow anything, he wrote. It is safer to get rid of it beforehand than to risk putting it into the stomach.

Yet of all the bizarre turn-of-the-century health trends, Rechtins was perhaps the most grounded in actual science.

Its not really until much later than this period that you get effective treatments for common diseases, Baldwin says. So to kiss somebody who might be carrying tuberculosis, or who might be carrying syphilis, would be a real concern.

Rechtin was eventually able to claim more than 1,000 adherents, including some 70 brides who donned Kiss Not buttons at their weddings. But she faced relentless hostility from the press.

Its very clear from the articles that reporters find this ridiculous, says Baldwin. Theyre thinking that on its face, what shes saying is so absurd that they can add color to their article by quoting her extensively.

On highly illustrated pages crammed with jokey cartoons, reporters declared Rechtins campaign hard-hearted and cold blooded, while comic strips imagined couples joy at breaking anti-kissing pledges.

The medical and scientific communities were similarly dismissive. Much of the criticism, writes Baldwin, painted the idea as impractical and excessive, even paranoid. One prominent officials editorial in the Washington Post decried Rechtins organization as a society for the prevention of pleasure.

Take a darkened nook on a moonlit night, with the beams playing around a couple idly swinging in a hammock; let the antikissing society get to work in such a case, and see what happens, it read. You cant keep it down and theres no use trying so long as good, red blood courses through the veins of American youth.

Baldwin argues that the men of Rechtins time doth protest too much. Behind their disdain was a reluctance to cede to women their right to bodily autonomy, he writes, adding, Young women, in particular, had to be alert for the possibility that any man, whether stranger or trusted friend, might grab them and try to kiss them.

The Kiss Not button was aimed, in part, at the sort of man who might attempt the erotic gambit of a first kiss before any inviting social cues from the woman, Baldwin continues. When American newspapers scoffed at Rechtins anti-kissing campaign, they were following an established pattern of treating unwanted sexual advances as a joke.

Tomes points out that earlier public health campaigns against spitting took aim at lower-class men for spitting in the path of rich women to grab their attentiona form of street harassment that was common in Rechtins time.

[But] whats interesting about Imogene is shes really pushing back against men of her own class, Tomes said. Shes really trying to set a boundary that we can recognize today as dont touch me without my consent.

Ultimately, Rechtins campaign failed to survive her critics. After a year and a half of campaigning, the Worlds Health Organization disappears from the record. Her campaign basically goes nowhere, Baldwin says, and it runs up against a whole bunch of problems.

Rechtin had long since convinced her husband of the pernicious health risks associated with promiscuous kissing.

By the 1920s, womens sexual politics had shifted dramatically. The new woman of the 1920s discarded 19th-century womanhood by adopting formerly male values and behavior, wrote Baker in her 1984 essay. Baldwin, meanwhile, says that these modern women are enjoying sex just like men enjoy sex, making an anti-kissing campaign seem dangerously out of fashion.

Not long after, the introduction of effective antibiotics changed the public health landscape dramatically, greatly reducing the risk of dying from common infectious diseases. The anxiety about hidden germs lurking behind every kiss gave way to a more relaxed attitude toward dirt and disease.

In the end, Tomes deems Rechtins failed campaign a product of a period when the philosophy of public health was changing, from behavior-based approaches to societal problems to more targeted scientific solutions. [Rechtin is] kind of caught in this transition to what public health becomes, she says.

The dieting charlatans and great masticators who outshone Rechtin in her day would soon be reined in, too. In 1910, U.S. science administrator and politician Abraham Flexner successfully pushed to formalize the practice of medicine and greatly suppress what he called the quackery of alternative wellness gurus.

For Baldwin, Rechtins story is ultimately a reflection of just how little following the science can matter in matters of public health. When it comes to the dangers of kissing, Rechtin was rightbut as time proved, in the words of one newspaper headline, it was simply too pleasurable a pastime to abolish.

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The Woman Who Fought to End the 'Pernicious' Scourge of Kissing - Smithsonian Magazine

Dulling the ocean racket to save fish stocks – Devdiscourse

Shipping and sonar bombard the ocean with noise and disrupt fish communication and behavior. Countries need to work together to restore the quiet of the deep.

The boom of sonar, the roar of propellers, and the whine of drills as they rip into the seabed humans pound the ocean with noise. These alien sounds distort marine soundscapes and affect fisheries in many ways. Local catches change straight away as noise disrupts fish behavior and communication, and in the long term, fish stocks are likely to decline. Better regulation and international cooperation are needed to dull the racket. In an area off the Norwegian coast exposed to airgun noise from seismic exploration, catch rates of cod in long-line fisheries reduced by 55 to 80 percent. Meanwhile, the bycatch of cod in trawl fisheries for saithe increased threefold. Noise from seismic surveys reduced long-line catch rates of both Greenland halibut and haddock by 16 to 25 percent but doubled gillnet catch rates for Greenland halibut and redfish. The noisy conditions may cause fish to stop feeding and miss the long-line baits but then move into deeper water and get entangled in gillnets and bottom trawls. Catch rates may also change when human-made noise affects the predators and prey of target fish species. When Ambon damselfish were exposed to passing boat noise, they were consumed more than twice as quickly by dusky dottybacks. When captive grey seals were exposed to the tidal turbine and pile-driving sound playback, they kept foraging in high-density patches of herring and sprat but foraged less in low-density prey patches. Fish rely on natural sounds for several critical life functions, including attracting mates, finding prey, avoiding predators, and navigating dark or cloudy waters. Many fish species also communicate with calls to synchronize foraging, schooling, spawning, and migratory activities.

Human-made noise deters fish from an area, disrupts their behavior, and masks important acoustic cues. Noise may also increase fish stress levels and energy expenditure, leading to smaller fish that mature more slowly. Theoretical models show this could mean long-term catch declines. New insights from empirical studies are critically needed here. Different human activities produce different types of sound, which affect fish in different ways. Noise can be continuous, such as shipping noise, or impulsive, such as seismic shooting and pile-driving. Continuous sounds may lead to more acoustic masking, while impulsive sounds cause more disturbance. When captive European seabass were exposed to both continuous and impulsive sounds, they recovered from their diving response more slowly after they were exposed to impulsive sound.

The good news is noise pollution may be easier to solve than other types of pollution: once the source of the noise is gone, the problem disappears. Regulations could encourage industries to use technology to reduce unintended noise in offshore activities such as shipping and pile-driving. The shipping industry could devise quieter propellers, travel at slower cruising speeds, and chart routes away from ecologically critical areas. In some countries, pile-driving operations must encase the pile with bubble curtains to muffle the noise. Activities such as seismic surveys and navy sonar produce loud sounds intentionally. Incentives could encourage companies and the military to continuously develop novel technologies to replace noisy practices. For example, as an alternative to seismic air guns, oil and gas explorations can be made with marine seismic vibrators on the ocean floor, eliminating potential impacts on fish in the water column. These devices also produce more continuous noise with a narrower frequency band, which may reduce the negative impacts on sea life as it will be heard by fewer species.

Human-induced soundscape change occurs across the globe, so more concerted efforts and collaboration among countries and governing bodies are essential to tackle the issue and improve human stewardship of the ocean. Few high-level international policy initiatives explicitly recognize human-made noise as a problem for marine life this needs to change.

Climate change has had many well-documented effects on the ocean, such as warming waters. It has changed the ocean soundscape too. Noisy cyclones and tropical storms are more frequent, and noise-insulating Arctic sea ice cover is shrinking. Extreme weather events may also degrade marine habitats with high bio-acoustic diversity and importance, such as coral reefs. Warmer waters allow human-made noise to travel faster and further. Limiting climate change will help reduce the problem of ocean noise along with the many other environmental issues it has brought in its wake. Humans increasingly exploit the ocean as an economic resource, so it's more important than ever for societies to manage the 'blue economy' responsibly. Calming our noisy oceans is one way.

(This story has not been edited by Devdiscourse staff and is auto-generated from a syndicated feed.)

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Dulling the ocean racket to save fish stocks - Devdiscourse