Skip to main content

Home/ TOK Friends/ Group items tagged Scientists

Rss Feed Group items tagged

Javier E

Lies, Damned Lies, and Medical Science - Magazine - The Atlantic - 0 views

  • How should we choose among these dueling, high-profile nutritional findings? Ioannidis suggests a simple approach: ignore them all.
  • even if a study managed to highlight a genuine health connection to some nutrient, you’re unlikely to benefit much from taking more of it, because we consume thousands of nutrients that act together as a sort of network, and changing intake of just one of them is bound to cause ripples throughout the network that are far too complex for these studies to detect, and that may be as likely to harm you as help you
  • studies report average results that typically represent a vast range of individual outcomes.
  • ...17 more annotations...
  • studies usually detect only modest effects that merely tend to whittle your chances of succumbing to a particular disease from small to somewhat smaller
  • The odds that anything useful will survive from any of these studies are poor,” says Ioannidis—dismissing in a breath a good chunk of the research into which we sink about $100 billion a year in the United States alone.
  • nutritional studies aren’t the worst. Drug studies have the added corruptive force of financial conflict of interest.
  • Even when the evidence shows that a particular research idea is wrong, if you have thousands of scientists who have invested their careers in it, they’ll continue to publish papers on it,” he says. “It’s like an epidemic, in the sense that they’re infected with these wrong ideas, and they’re spreading it to other researchers through journals.
  • Nature, the grande dame of science journals, stated in a 2006 editorial, “Scientists understand that peer review per se provides only a minimal assurance of quality, and that the public conception of peer review as a stamp of authentication is far from the truth.
  • The ultimate protection against research error and bias is supposed to come from the way scientists constantly retest each other’s results—except they don’t. Only the most prominent findings are likely to be put to the test, because there’s likely to be publication payoff in firming up the proof, or contradicting it.
  • even for medicine’s most influential studies, the evidence sometimes remains surprisingly narrow. Of those 45 super-cited studies that Ioannidis focused on, 11 had never been retested
  • even when a research error is outed, it typically persists for years or even decades.
  • much, perhaps even most, of what doctors do has never been formally put to the test in credible studies, given that the need to do so became obvious to the field only in the 1990s
  • Other meta-research experts have confirmed that similar issues distort research in all fields of science, from physics to economics (where the highly regarded economists J. Bradford DeLong and Kevin Lang once showed how a remarkably consistent paucity of strong evidence in published economics studies made it unlikely that any of them were right
  • His PLoS Medicine paper is the most downloaded in the journal’s history, and it’s not even Ioannidis’s most-cited work
  • while his fellow researchers seem to be getting the message, he hasn’t necessarily forced anyone to do a better job. He fears he won’t in the end have done much to improve anyone’s health. “There may not be fierce objections to what I’m saying,” he explains. “But it’s difficult to change the way that everyday doctors, patients, and healthy people think and behave.”
  • “Usually what happens is that the doctor will ask for a suite of biochemical tests—liver fat, pancreas function, and so on,” she tells me. “The tests could turn up something, but they’re probably irrelevant. Just having a good talk with the patient and getting a close history is much more likely to tell me what’s wrong.” Of course, the doctors have all been trained to order these tests, she notes, and doing so is a lot quicker than a long bedside chat. They’re also trained to ply the patient with whatever drugs might help whack any errant test numbers back into line.
  • What they’re not trained to do is to go back and look at the research papers that helped make these drugs the standard of care. “When you look the papers up, you often find the drugs didn’t even work better than a placebo. And no one tested how they worked in combination with the other drugs,” she says. “Just taking the patient off everything can improve their health right away.” But not only is checking out the research another time-consuming task, patients often don’t even like it when they’re taken off their drugs, she explains; they find their prescriptions reassuring.
  • Already feeling that they’re fighting to keep patients from turning to alternative medical treatments such as homeopathy, or misdiagnosing themselves on the Internet, or simply neglecting medical treatment altogether, many researchers and physicians aren’t eager to provide even more reason to be skeptical of what doctors do—not to mention how public disenchantment with medicine could affect research funding.
  • We could solve much of the wrongness problem, Ioannidis says, if the world simply stopped expecting scientists to be right. That’s because being wrong in science is fine, and even necessary—as long as scientists recognize that they blew it, report their mistake openly instead of disguising it as a success, and then move on to the next thing, until they come up with the very occasional genuine breakthrough
  • Science is a noble endeavor, but it’s also a low-yield endeavor,” he says. “I’m not sure that more than a very small percentage of medical research is ever likely to lead to major improvements in clinical outcomes and quality of life. We should be very comfortable with that fact.”
Javier E

Opinion | Is There Such a Thing as an Authoritarian Voter? - The New York Times - 0 views

  • Jonathan Weiler, a political scientist at the University of North Carolina at Chapel Hill, has spent much of his career studying the appeal of authoritarian figures: politicians who preach xenophobia, beat up on the press and place themselves above the law while extolling “law and order” for everyone else.
  • He is one of many scholars who believe that deep-seated psychological traits help explain voters’ attraction to such leaders. “These days,” he told me, “audiences are more receptive to the idea” than they used to be.
  • “In 2018, the sense of fear and panic — the disorientation about how people who are not like us could see the world the way they do — it’s so elemental,” Mr. Weiler said. “People understand how deeply divided we are, and they are looking for explanations that match the depth of that division.”
  • ...24 more annotations...
  • Moreover, using the child-rearing questionnaire, African-Americans score as far more authoritarian than whites
  • what, exactly, is an “authoritarian” personality? How do you measure it?
  • for more than half a century — social scientists have tried to figure out why some seemingly mild-mannered people gravitate toward a strongman
  • the philosopher (and German refugee) Theodor Adorno collaborated with social scientists at the University of California at Berkeley to investigate why ordinary people supported fascist, anti-Semitic ideology during the war. They used a questionnaire called the F-scale (F is for fascism) and follow-up interviews to analyze the “total personality” of the “potentially antidemocratic individual.”
  • The resulting 1,000-page tome, “The Authoritarian Personality,” published in 1950, found that subjects who scored high on the F-scale disdained the weak and marginalized. They fixated on sexual deviance, embraced conspiracy theories and aligned themselves with domineering leaders “to serve powerful interests and so participate in their power,”
  • “Globalized free trade has shafted American workers and left us looking for a strong male leader, a ‘real man,’” he wrote. “Trump offers exactly what my maladapted unconscious most craves.”
  • one of the F-scale’s prompts: “Obedience and respect for authority are the most important virtues children should learn.” Today’s researchers often diagnose latent authoritarians through a set of questions about preferred traits in children: Would you rather your child be independent or have respect for elders? Have curiosity or good manners? Be self-reliant or obedient? Be well behaved or considerate?
  • a glance at the Christian group Focus on the Family’s “biblical principles for spanking” reminds us that your approach to child rearing is not pre-political; it is shorthand for your stance in the culture wars.
  • “All the social sciences are brought to bear to try to explain all the evil that persists in the world, even though the liberal Enlightenment worldview says that we should be able to perfect things,” said Mr. Strouse, the Trump voter
  • what should have been obvious:
  • “Trump’s electoral strength — and his staying power — have been buoyed, above all, by Americans with authoritarian inclinations,” wrote Matthew MacWilliams, a political consultant who surveyed voters during the 2016 election
  • The child-trait test, then, is a tool to identify white people who are anxious about their decline in status and power.
  • new book, “Prius or Pickup?,” by ditching the charged term “authoritarian.” Instead, they divide people into three temperamental camps: fixed (people who are wary of change and “set in their ways”), fluid (those who are more open to new experiences and people) and mixed (those who are ambivalent).
  • “The term ‘authoritarian’ connotes a fringe perspective, and the perspective we’re describing is far from fringe,” Mr. Weiler said. “It’s central to American public opinion, especially on cultural issues like immigration and race.”
  • Other scholars apply a typology based on the “Big Five” personality traits identified by psychologists in the mid-20th century: extroversion, agreeableness, conscientiousness, neuroticism and openness to experience. (It seems that liberals are open but possibly neurotic, while conservatives are more conscientious.)
  • Historical context matters — it shapes who we are and how we debate politics. “Reason moves slowly,” William English, a political economist at Georgetown, told me. “It’s constituted sociologically, by deep community attachments, things that change over generations.”
  • “it is a deep-seated aspiration of many social scientists — sometimes conscious and sometimes unconscious — to get past wishy-washy culture and belief. Discourses that can’t be scientifically reduced are problematic” for researchers who want to provide “a universal account of behavior.”
  • in our current environment, where polarization is so unyielding, the apparent clarity of psychological and biological explanations becomes seductive
  • Attitudes toward parenting vary across cultures, and for centuries African-Americans have seen the consequences of a social and political hierarchy arrayed against them, so they can hardly be expected to favor it — no matter what they think about child rearing
  • — we know that’s not going to happen. People have wicked tendencies.”
  • as the social scientific portrait of humanity grows more psychological and irrational, it comes closer and closer to approximating the old Adam of traditional Christianity: a fallen, depraved creature, unable to see himself clearly except with the aid of a higher power
  • The conclusions of political scientists should inspire humility rather than hubris. In the end, they have confirmed what so many observers of our species have long suspected: None of us are particularly free or rational creatures.
  • Allen Strouse is not the archetypal Trump voter whom journalists discover in Rust Belt diners. He is a queer Catholic poet and scholar of medieval literature who teaches at the New School in New York City. He voted for Mr. Trump “as a protest against the Democrats’ failures on economic issues,” but the psychological dimensions of his vote intrigue him. “Having studied Freudian analysis, and being in therapy for 10 years, I couldn’t not reflexively ask myself, ‘How does this decision have to do with my psychology?’” he told me.
  • their preoccupation with childhood and “primitive and irrational wishes and fears” have influenced the study of authoritarianism ever since.
katedriscoll

Suhas Dara Blogs: "All knowledge depends on the recognition of patterns and anomalies."... - 0 views

  • In the study of TOK in DP-1 (11th grade), I have learnt about the ways of knowing, and two of the areas of knowledge - natural sciences and human sciences. Of all the discussions and explorations done into these areas of knowledge, there can be patterns observed in the methods of experimentation, data collection, data analysis and also assumptions being made when generalizing situations. In some of the above points, human sciences is similar to natural sciences, while in the others, the ideologies and working is different.
  • Natural sciences and human sciences for instance both use experiments as a form of data collection but the methods and outputs are different. Natural scientists have lesser moral values to take care of compared to human scientists such as psychologists. Psychologists are directly dealing with humans and hence need to take more ethical implications into consideration. Secondly, human scientists conduct experiments on a large set of people - not limited to one race or gender unless it is required. Natural scientists do not require survey type data. Here, a single scientist conducts the experiments. Both the types of experiments are empirical based though, direct experimentation is more in natural sciences while human sciences are more observation based. But experiments in human sciences have more unpredictable results due to what is known as the Hawthorne effect. This effect explains that when a particular group comes to know that they are under observation for a experiment or an analysis, they tend to be more productive. These cause errors in results of human science experiments especially the ones of psychology.
kaylynfreeman

Opinion | The Social Sciences' 'Physics Envy' - The New York Times - 0 views

  • Economists, political scientists and sociologists have long suffered from an academic inferiority complex: physics envy. They often feel that their disciplines should be on a par with the “real” sciences and self-consciously model their work on them, using language (“theory,” “experiment,” “law”) evocative of physics and chemistry.
  • Many social scientists contend that science has a method, and if you want to be scientific, you should adopt it. The method requires you to devise a theoretical model, deduce a testable hypothesis from the model and then test the hypothesis against the world. If the hypothesis is confirmed, the theoretical model holds; if the hypothesis is not confirmed, the theoretical model does not hold. If your discipline does not operate by this method — known as hypothetico-deductivism — then in the minds of many, it’s not scientific.
  • it’s not even a good description of how the “hard” sciences work. It’s a high school textbook version of science, with everything messy and chaotic about scientific inquiry safely ignored.
  • ...9 more annotations...
  • For the sake of everyone who stands to gain from a better knowledge of politics, economics and society, the social sciences need to overcome their inferiority complex, reject hypothetico-deductivism and embrace the fact that they are mature disciplines with no need to emulate other sciences.
  • Or consider the famous “impossibility theorem,” developed by the economist Kenneth Arrow, which shows that no single voting system can simultaneously satisfy several important principles of fairness. There is no need to test this model with data — in fact, there is no way to test it — and yet the result offers policy makers a powerful lesson: there are unavoidable trade-offs in the design of voting systems.
  • Unfortunately, the belief that every theory must have its empirical support (and vice versa) now constrains the kinds of social science projects that are undertaken, alters the trajectory of academic careers and drives graduate training. Rather than attempt to imitate the hard sciences, social scientists would be better off doing what they do best: thinking deeply about what prompts human beings to behave the way they do.
  • theoretical models can be of great value even if they are never supported by empirical testing. In the 1950s, for instance, the economist Anthony Downs offered an elegant explanation for why rival political parties might adopt identical platforms during an election campaign. His model relied on the same strategic logic that explains why two competing gas stations or fast-food restaurants locate across the street from each other — if you don’t move to a central location but your opponent does, your opponent will nab those voters (customers). The best move is for competitors to mimic each other. This framework has proven useful to generations of political scientists even though Mr. Downs did not empirically test it and despite the fact that its main prediction, that candidates will take identical positions in elections, is clearly false. The model offered insight into why candidates move toward the center in competitive elections
  • Likewise, the analysis of empirical data can be valuable even in the absence of a grand theoretical model. Did the welfare reform championed by Bill Clinton in the 1990s reduce poverty? Are teenage employees adversely affected by increases in the minimum wage?
  • Answering such questions about the effects of public policies does not require sweeping theoretical claims, just careful attention to the data.
  • theories are like maps: the test of a map lies not in arbitrarily checking random points but in whether people find it useful to get somewhere.
  • Economists, political scientists and sociologists have long suffered from an academic inferiority complex: physics envy. They often feel that their disciplines should be on a par with the “real” sciences and self-consciously model their work on them, using language (“theory,” “experiment,” “law”) evocative of physics and chemistry.
  • The ideal of hypothetico-deductivism is flawed for many reasons. For one thing,
Javier E

The "missing law" of nature was here all along | Salon.com - 0 views

  • recently published scientific article proposes a sweeping new law of nature, approaching the matter with dry, clinical efficiency that still reads like poetry.
  • “Evolving systems are asymmetrical with respect to time; they display temporal increases in diversity, distribution, and/or patterned behavior,” they continue, mounting their case from the shoulders of Charles Darwin, extending it toward all things living and not. 
  • To join the known physics laws of thermodynamics, electromagnetism and Newton’s laws of motion and gravity, the nine scientists and philosophers behind the paper propose their “law of increasing functional information.”
  • ...27 more annotations...
  • In short, a complex and evolving system — whether that’s a flock of gold finches or a nebula or the English language — will produce ever more diverse and intricately detailed states and configurations of itself.
  • Some of these more diverse and intricate configurations, the scientists write, are shed and forgotten over time. The configurations that persist are ones that find some utility or novel function in a process akin to natural selection, but a selection process driven by the passing-on of information rather than just the sowing of biological genes
  • Have they finally glimpsed, I wonder, the connectedness and symbiotic co-evolution of their own scientific ideas with those of the world’s writers
  • Have they learned to describe in their own quantifying language that cradle from which both our disciplines have emerged and the firmament on which they both stand — the hearing and telling of stories in order to exist?
  • Have they quantified the quality of all existent matter, living and not: that all things inherit a story in data to tell, and that our stories are told by the very forms we take to tell them? 
  • “Is there a universal basis for selection? Is there a more quantitative formalism underlying this conjectured conceptual equivalence—a formalism rooted in the transfer of information?,” they ask of the world’s disparate phenomena. “The answer to both questions is yes.”
  • Yes. They’ve glimpsed it, whether they know it or not. Sing to me, O Muse, of functional information and its complex diversity.
  • The principle of complexity evolving at its own pace when left to its own devices, independent of time but certainly in a dance with it, is nothing new. Not in science, nor in its closest humanities kin, science and nature writing. Give things time and nourishing environs, protect them from your own intrusions and — living organisms or not — they will produce abundant enlacement of forms.
  • This is how poetry was born from the same larynxes and phalanges that tendered nuclear equations: We featherless bipeds gave language our time and delighted attendance until its forms were so multivariate that they overflowed with inevitable utility.
  • In her Pulitzer-winning “Pilgrim at Tinker Creek,” nature writer Annie Dillard explains plainly that evolution is the vehicle of such intricacy in the natural world, as much as it is in our own thoughts and actions. 
  • “The stability of simple forms is the sturdy base from which more complex, stable forms might arise, forming in turn more complex forms,” she explains, drawing on the undercap frills of mushrooms and filament-fine filtering tubes inside human kidneys to illustrate her point. 
  • “Utility to the creature is evolution’s only aesthetic consideration. Form follows function in the created world, so far as I know, and the creature that functions, however bizarre, survives to perpetuate its form,” writes Dillard.
  • “Of the multiplicity of forms, I know nothing. Except that, apparently, anything goes. This holds for forms of behavior as well as design — the mantis munching her mate, the frog wintering in mud.” 
  • She notes that, of all forms of life we’ve ever known to exist, only about 10% are still alive. What extravagant multiplicity. 
  • “Intricacy is that which is given from the beginning, the birthright, and in the intricacy is the hardiness of complexity that ensures against the failures of all life,” Dillard writes. “The wonder is — given the errant nature of freedom and the burgeoning texture of time — the wonder is that all the forms are not monsters, that there is beauty at all, grace gratuitous.”
  • “This paper, and the reason why I'm so proud of it, is because it really represents a connection between science and the philosophy of science that perhaps offers a new lens into why we see everything that we see in the universe,” lead scientist Michael Wong told Motherboard in a recent interview. 
  • Wong is an astrobiologist and planetary scientist at the Carnegie Institute for Science. In his team’s paper, that bridge toward scientific philosophy is not only preceded by a long history of literary creativity but directly theorizes about the creative act itself.  
  • “The creation of art and music may seem to have very little to do with the maintenance of society, but their origins may stem from the need to transmit information and create bonds among communities, and to this day, they enrich life in innumerable ways,” Wong’s team writes.  
  • “Perhaps, like eddies swirling off of a primary flow field, selection pressures for ancillary functions can become so distant from the core functions of their host systems that they can effectively be treated as independently evolving systems,” the authors add, pointing toward the elaborate mating dance culture observed in birds of paradise.
  • “Perhaps it will be humanity’s ability to learn, invent, and adopt new collective modes of being that will lead to its long-term persistence as a planetary phenomenon. In light of these considerations, we suspect that the general principles of selection and function discussed here may also apply to the evolution of symbolic and social systems.”
  • The Mekhilta teaches that all Ten Commandments were pronounced in a single utterance. Similarly, the Maharsha says the Torah’s 613 mitzvoth are only perceived as a plurality because we’re time-bound humans, even though they together form a singular truth which is indivisible from He who expressed it. 
  • Or, as the Mishna would have it, “the creations were all made in generic form, and they gradually expanded.” 
  • Like swirling eddies off of a primary flow field.
  • “O Lord, how manifold are thy works!,” cried out David in his psalm. “In wisdom hast thou made them all: the earth is full of thy riches. So is this great and wide sea, wherein are things creeping innumerable, both small and great beasts.” 
  • In all things, then — from poetic inventions, to rare biodiverse ecosystems, to the charted history of our interstellar equations — it is best if we conserve our world’s intellectual and physical diversity, for both the study and testimony of its immeasurable multiplicity.
  • Because, whether wittingly or not, science is singing the tune of the humanities. And whether expressed in algebraic logic or ancient Greek hymn, its chorus is the same throughout the universe: Be fruitful and multiply. 
  • Both intricate configurations of art and matter arise and fade according to their shared characteristic, long-known by students of the humanities: each have been graced with enough time to attend to the necessary affairs of their most enduring pleasures. 
Emily Horwitz

UK, Japan scientists win Nobel for stem cell breakthroughs | Reuters - 0 views

  • Scientists from Britain and Japan shared a Nobel Prize on Monday for the discovery that adult cells can be transformed back into embryo-like stem cells that may one day regrow tissue in damaged brains, hearts or other organs.
  • discovered ways to create tissue that would act like embryonic cells, without the need to harvest embryos.
  • "These groundbreaking discoveries have completely changed our view of the development and specialization of cells," the Nobel Assembly at Stockholm's Karolinska Institute said.
  • ...6 more annotations...
  • big hope for stem cells is that they can be used to replace damaged tissue in everything from spinal cord injuries to Parkinson's disease.
  • Scientists once thought it was impossible to turn adult tissue back into stem cells, which meant that new stem cells could only be created by harvesting embryos - a practice that raised ethical qualms in some countries and also means that implanted cells might be rejected by the body.
  • The new stem cells are known as "induced pluripotency stem cells", or iPS cells.
  • "We would like to be able to find a way of obtaining spare heart or brain cells from skin or blood cells. The important point is that the replacement cells need to be from the same individual, to avoid problems of rejection and hence of the need for immunosuppression."
  • Thomas Perlmann, Nobel Committee member and professor of Molecular Development Biology at the Karolinska Institute said: "Thanks to these two scientists, we know now that development is not strictly a one-way street."
  • "You can't take out a large part of the heart or the brain or so to study this, but now you can take a cell from for example the skin of the patient, reprogram it, return it to a pluripotent state, and then grow it in a laboratory," he said.
Javier E

Doubts about Johns Hopkins research have gone unanswered, scientist says - The Washingt... - 0 views

  • Over and over, Daniel Yuan, a medical doctor and statistician, couldn’t understand the results coming out of the lab, a prestigious facility at Johns Hopkins Medical School funded by millions from the National Institutes of Health.He raised questions with the lab’s director. He reran the calculations on his own. He looked askance at the articles arising from the research, which were published in distinguished journals. He told his colleagues: This doesn’t make sense.“At first, it was like, ‘Okay — but I don’t really see it,’ ” Yuan recalled. “Then it started to smell bad.”
  • The passions of scientific debate are probably not much different from those that drive achievement in other fields, so a tragic, even deadly dispute might not be surprising.But science, creeping ahead experiment by experiment, paper by paper, depends also on institutions investigating errors and correcting them if need be, especially if they are made in its most respected journals.If the apparent suicide and Yuan’s detailed complaints provoked second thoughts about the Nature paper, though, there were scant signs of it.The journal initially showed interest in publishing Yuan’s criticism and told him that a correction was “probably” going to be written, according to e-mail rec­ords. That was almost six months ago. The paper has not been corrected.The university had already fired Yuan in December 2011, after 10 years at the lab. He had been raising questions about the research for years. He was escorted from his desk by two security guards.
  • Last year, research published in the Proceedings of the National Academy of Sciences found that the percentage of scientific articles retracted because of fraud had increased tenfold since 1975. The same analysis reviewed more than 2,000 retracted biomedical papers and found that 67 percent of the retractions were attributable to misconduct, mainly fraud or suspected fraud.
  • ...3 more annotations...
  • Fang said retractions may be rising because it is simply easier to cheat in an era of digital images, which can be easily manipulated. But he said the increase is caused at least in part by the growing competition for publication and for NIH grant money.He noted that in the 1960s, about two out of three NIH grant requests were funded; today, the success rate for applicants for research funding is about one in five. At the same time, getting work published in the most esteemed journals, such as Nature, has become a “fetish” for some scientists, Fang said.
  • many observers note that universities and journals, while sometimes agreeable to admitting small mistakes, are at times loath to reveal that the essence of published work was simply wrong.“The reader of scientific information is at the mercy of the scientific institution to investigate or not,” said Adam Marcus, who with Ivan Oransky founded the blog Retraction Watch in 2010. In this case, Marcus said, “if Hopkins doesn’t want to move, we may not find out what is happening for two or three years.”
  • The trouble is that a delayed response — or none at all — leaves other scientists to build upon shaky work. Fang said he has talked to researchers who have lost months by relying on results that proved impossible to reproduce.Moreover, as Marcus and Oransky have noted, much of the research is funded by taxpayers. Yet when retractions are done, they are done quietly and “live in obscurity,” meaning taxpayers are unlikely to find out that their money may have been wasted.
Javier E

Gamblers, Scientists and the Mysterious Hot Hand - The New York Times - 0 views

  • Psychologists who study how the human mind responds to randomness call this the gambler’s fallacy — the belief that on some cosmic plane a run of bad luck creates an imbalance that must ultimately be corrected, a pressure that must be relieved
  • The opposite of that is the hot-hand fallacy — the belief that winning streaks, whether in basketball or coin tossing, have a tendency to continue
  • Both misconceptions are reflections of the brain’s wired-in rejection of the power that randomness holds over our lives. Look deep enough, we instinctively believe, and we may uncover a hidden order.
  • ...11 more annotations...
  • A working paper published this summer has caused a stir by proposing that a classic body of research disproving the existence of the hot hand in basketball is flawed by a subtle misperception about randomness. If the analysis is correct, the possibility remains that the hot hand is real.
  • We mortals can benefit, at least in theory, from islands of predictability — a barely perceptible tilt of a roulette table that makes the ball slightly more likely to land on one side of the wheel than the other
  • The same is true for the random walk of the stock market. Becoming aware of information before it has propagated worldwide can give a speculator a tiny, temporary edge. Some traders pay a premium to locate their computer servers as close as possible to Lower Manhattan, gaining advantages measured in microseconds.
  • Taken to extremes, seeing connections that don’t exist can be a symptom of a psychiatric condition called apophenia. In less pathological forms, the brain’s hunger for pattern gives rise to superstitions (astrology, numerology) and is a driving factor in what has been called a replication crisis in science
  • I know it sounds crazy but when you average the scores together the answer is not 50-50, as most people would expect, but about 40-60 in favor of tails.
  • There is not, as Guildenstern might imagine, a tear in the fabric of space-time. It remains as true as ever that each flip is independent, with even odds that the coin will land one way or the other. But by concentrating on only some of the data — the flips that follow heads — a gambler falls prey to a selection bias.
  • basketball is no streakier than a coin toss. For a 50 percent shooter, for example, the odds of making a basket are supposed to be no better after a hit — still 50-50. But in a purely random situation, according to the new analysis, a hit would be expected to be followed by another hit less than half the time. Finding 50 percent would actually be evidence in favor of the hot hand
  • Dr. Gilovich is withholding judgment. “The larger the sample of data for a given player, the less of an issue this is,” he wrote in an email. “Because our samples were fairly large, I don’t believe this changes the original conclusions about the hot hand. ”
  • Take a fair coin — one as likely to land on heads as tails — and flip it four times. How often was heads followed by another head?
  • For all their care to be objective, scientists are as prone as anyone to valuing data that support their hypothesis over those that contradict it. Sometimes this results in experiments that succeed only under very refined conditions, in certain labs with special reagents and performed by a scientist with a hot hand.
  • We’re all in the same boat. We evolved with this uncanny ability to find patterns. The difficulty lies in separating what really exists from what is only in our minds.
Javier E

Is Confidence in Science as a Source of Progress Based on Faith or Fact? - NYTimes.com - 3 views

  • There’s been a range of interesting reactions to my piece on Pete Seeger’s question about whether confidence in science as a source of human progress is underpinned by fact or faith.
  • the discussion was not about confidence in science as an enterprise, but confidence that benefits would always accrue to society from applications of scientific knowledge
  • Theologically speaking, science constantly reminds us of the sense in which we are nearly – but clearly not quite – gods. Perhaps the trickiest value issues surrounding science are hidden behind the seemingly innocent metaphors of ‘getting into the mind of God’ (physics) and ‘playing God’ (biomedicine). Notwithstanding scientists’ own disclaimers, as a matter of fact science has done as well as it has because scientists have adopted a ‘godlike’ attitude toward nature. We have allowed ourselves to imagine and intervene in things at very high levels of abstraction and in ways that can only be justified in terms of the power unleashed by the resulting systematic view of things. The costs incurred have included devaluing our most immediate experiences of nature and subjecting things to quite artificial conditions in order to extract knowledge.
  • ...3 more annotations...
  • For Francis Bacon and the other early Scientific Revolutionaries, this was a fair price to pay for doing divine work – God, after all, was thought to be himself transcendent and perhaps even alienated from nature. But without this theistic assumption, it becomes difficult to justify the unfettered pursuit of science, once both the costs and benefits are each given their due. Of course, we could simply say that science is what turns humans into gods. For all its hubris, this response would at least possess the virtues of candor and consistency. As it stands, scientists shy away from any such strong self-understandings, preferring to hide behind more passive accounts of their activities – e.g. they ‘describe’ rather than generate phenomena, they ‘explain’ rather than justify nature, etc. Lost in this secular translation of an originally sacred mission is the scientist’s sense of personal responsibility qua scientist.
  • Rather than thinking of science as a “force for good”, we should think of it as an inherent human activity, like com
  • merce.
Javier E

The varieties of denialism | Scientia Salon - 1 views

  • a stimulating conference at Clark University about “Manufacturing Denial,” which brought together scholars from wildly divergent disciplines — from genocide studies to political science to philosophy — to explore the idea that “denialism” may be a sufficiently coherent phenomenon underlying the willful disregard of factual evidence by ideologically motivated groups or individuals.
  • the Oxford defines a denialist as “a person who refuses to admit the truth of a concept or proposition that is supported by the majority of scientific or historical evidence,” which represents a whole different level of cognitive bias or rationalization. Think of it as bias on steroids.
  • First, as a scientist: it’s just not about the facts, indeed — as Brendan showed data in hand during his presentation — insisting on facts may have counterproductive effects, leading the denialist to double down on his belief.
  • ...22 more annotations...
  • if I think that simply explaining the facts to the other side is going to change their mind, then I’m in for a rude awakening.
  • As a philosopher, I found to be somewhat more disturbing the idea that denialism isn’t even about critical thinking.
  • what the large variety of denialisms have in common is a very strong, overwhelming, ideological commitment that helps define the denialist identity in a core manner. This commitment can be religious, ethnical or political in nature, but in all cases it fundamentally shapes the personal identity of the people involved, thus generating a strong emotional attachment, as well as an equally strong emotional backlash against critics.
  • To begin with, of course, they think of themselves as “skeptics,” thus attempting to appropriate a word with a venerable philosophical pedigree and which is supposed to indicate a cautiously rational approach to a given problem. As David Hume put it, a wise person (i.e., a proper skeptic) will proportion her beliefs to the evidence. But there is nothing of the Humean attitude in people who are “skeptical” of evolution, climate change, vaccines, and so forth.
  • Denialists have even begun to appropriate the technical language of informal logic: when told that a majority of climate scientists agree that the planet is warming up, they are all too happy to yell “argument from authority!” When they are told that they should distrust statements coming from the oil industry and from “think tanks” in their pockets they retort “genetic fallacy!” And so on. Never mind that informal fallacies are such only against certain background information, and that it is eminently sensible and rational to trust certain authorities (at the least provisionally), as well as to be suspicious of large organizations with deep pockets and an obvious degree of self-interest.
  • What commonalities can we uncover across instances of denialism that may allow us to tackle the problem beyond facts and elementary logic?
  • the evidence from the literature is overwhelming that denialists have learned to use the vocabulary of critical thinking against their opponents.
  • Another important issue to understand is that denialists exploit the inherently tentative nature of scientific or historical findings to seek refuge for their doctrines.
  • . Scientists have been wrong before, and doubtlessly will be again in the future, many times. But the issue is rather one of where it is most rational to place your bets as a Bayesian updater: with the scientific community or with Faux News?
  • Science should be portrayed as a human story of failure and discovery, not as a body of barely comprehensible facts arrived at by epistemic priests.
  • Is there anything that can be done in this respect? I personally like the idea of teaching “science appreciation” classes in high school and college [2], as opposed to more traditional (usually rather boring, both as a student and as a teacher) science instruction
  • Denialists also exploit the media’s self imposed “balanced” approach to presenting facts, which leads to the false impression that there really are two approximately equal sides to every debate.
  • This is a rather recent phenomenon, and it is likely the result of a number of factors affecting the media industry. One, of course, is the onset of the 24-hr media cycle, with its pernicious reliance on punditry. Another is the increasing blurring of the once rather sharp line between reporting and editorializing.
  • The problem with the media is of course made far worse by the ongoing crisis in contemporary journalism, with newspapers, magazines and even television channels constantly facing an uncertain future of revenues,
  • he push back against denialism, in all its varied incarnations, is likely to be more successful if we shift the focus from persuading individual members of the public to making political and media elites accountable.
  • This is a major result coming out of Brendan’s research. He showed data set after data set demonstrating two fundamental things: first, large sections of the general public do not respond to the presentation of even highly compelling facts, indeed — as mentioned above — are actually more likely to entrench further into their positions.
  • Second, whenever one can put pressure on either politicians or the media, they do change their tune, becoming more reasonable and presenting things in a truly (as opposed to artificially) balanced way.
  • Third, and most crucially, there is plenty of evidence from political science studies that the public does quickly rally behind a unified political leadership. This, as much as it is hard to fathom now, has happened a number of times even in somewhat recent times
  • when leaders really do lead, the people follow. It’s just that of late the extreme partisan bickering in Washington has made the two major parties entirely incapable of working together on the common ground that they have demonstrably had in the past.
  • Another thing we can do about denialism: we should learn from the detailed study of successful cases and see what worked and how it can be applied to other instances
  • Yet another thing we can do: seek allies. In the case of evolution denial — for which I have the most first-hand experience — it has been increasingly obvious to me that it is utterly counterproductive for a strident atheist like Dawkins (or even a relatively good humored one like yours truly) to engage creationists directly. It is far more effective when we have clergy (Barry Lynn of Americans United for the Separation of Church and State [6] comes to mind) and religious scientists
  • Make no mistake about it: denialism in its various forms is a pernicious social phenomenon, with potentially catastrophic consequences for our society. It requires a rallying call for all serious public intellectuals, academic or not, who have the expertise and the stamina to join the fray to make this an even marginally better world for us all. It’s most definitely worth the fight.
kushnerha

New Ways Into the Brain's 'Music Room' - The New York Times - 5 views

  • Every culture ever studied has been found to make music, and among the oldest artistic objects known are slender flutes carved from mammoth bone some 43,000 years ago — 24,000 years before the cave paintings of Lascaux.
  • And though the survival value that music held for our ancestors may not be as immediately obvious as the power to recognize words, Dr. Rauschecker added, “music works as a group cohesive. Music-making with other people in your tribe is a very ancient, human thing to do.”
  • devised a radical new approach to brain imaging that reveals what past studies had missed. By mathematically analyzing scans of the auditory cortex and grouping clusters of brain cells with similar activation patterns, the scientists have identified neural pathways that react almost exclusively to the sound of music — any music. It may be Bach, bluegrass, hip-hop, big band, sitar or Julie Andrews. A listener may relish the sampled genre or revile it. No matter. When a musical passage is played, a distinct set of neurons tucked inside a furrow of a listener’s auditory cortex will fire in response.Other sounds, by contrast — a dog barking, a car skidding, a toilet flushing — leave the musical circuits unmoved.
  • ...11 more annotations...
  • “Why do we have music?” Dr. Kanwisher said in an interview. “Why do we enjoy it so much and want to dance when we hear it? How early in development can we see this sensitivity to music, and is it tunable with experience? These are the really cool first-order questions we can begin to address.”
  • Dr. McDermott said the new method could be used to computationally dissect any scans from a functional magnetic resonance imaging device, or F.M.R.I. — the trendy workhorse of contemporary neuroscience — and so may end up divulging other hidden gems of cortical specialization. As proof of principle, the researchers showed that their analytical protocol had detected a second neural pathway in the brain for which scientists already had evidence — this one tuned to the sounds of human speech.
  • Importantly, the M.I.T. team demonstrated that the speech and music circuits are in different parts of the brain’s sprawling auditory cortex, where all sound signals are interpreted, and that each is largely deaf to the other’s sonic cues, although there is some overlap when it comes to responding to songs with lyrics.
  • In fact, Dr. Rauschecker said, music sensitivity may be more fundamental to the human brain than is speech perception. “There are theories that music is older than speech or language,” he said. “Some even argue that speech evolved from music.”
  • , many researchers had long assumed that the human brain must be equipped with some sort of music room, a distinctive piece of cortical architecture dedicated to detecting and interpreting the dulcet signals of song. Yet for years, scientists failed to find any clear evidence of a music-specific domain through conventional brain-scanning technology
  • when previous neuroscientists failed to find any anatomically distinct music center in the brain, they came up with any number of rationales to explain the results.“The story was, oh, what’s special about music perception is how it recruits areas from all over the brain, how it draws on the motor system, speech circuitry, social understanding, and brings it all together,” she said. Some researchers dismissed music as “auditory cheesecake,” a pastime that co-opted other essential communicative urges. “This paper says, no, when you peer below the cruder level seen with some methodologies, you find very specific circuitry that responds to music over speech.”
  • The researchers wondered if the auditory system might be similarly organized to make sense of the soundscape through a categorical screen. If so, what would the salient categories be? What are the aural equivalents of a human face or a human leg — sounds or sound elements so essential the brain assigns a bit of gray matter to the task of detecting them?
  • Focusing on the brain’s auditory region — located, appropriately enough, in the temporal lobes right above the ears — the scientists analyzed voxels, or three-dimensional pixels, of the images mathematically to detect similar patterns of neuronal excitement or quietude.“The strength of our method is that it’s hypothesis-neutral,” Dr. McDermott said. “We just present a bunch of sounds and let the data do the talking.”
  • Matching sound clips to activation patterns, the researchers determined that four of the patterns were linked to general physical properties of sound, like pitch and frequency. The fifth traced the brain’s perception of speech, and for the sixth the data turned operatic, disclosing a neuronal hot spot in the major crevice, or sulcus, of the auditory cortex that attended to every music clip the researchers had played.
  • “The sound of a solo drummer, whistling, pop songs, rap, almost everything that has a musical quality to it, melodic or rhythmic, would activate it,” Dr. Norman-Haignere said. “That’s one reason the result surprised us. The signals of speech are so much more homogeneous.”
  • The researchers have yet to determine exactly which acoustic features of music stimulate its dedicated pathway. The relative constancy of a musical note’s pitch? Its harmonic overlays? Even saying what music is can be tricky.
oliviaodon

Confirmation bias in science: how to avoid it | Ars Technica - 0 views

  • One of the most common arguments against a scientific finding is confirmation bias: the scientist or scientists only look for data that confirms a desired conclusion. Confirmation bias is remarkably common—it is used by psychics, mediums, mentalists, and homeopaths, just to name a few. As you may guess from such a list, deliberate use of confirmation bias is held in low esteem by scientists, and allowing confirmation bias to get the better of your results is regarded as a particularly sad form of incompetence. Yet, whenever science meets some ideological barrier, scientists are accused of, at best, self-deception, and, at worst, deliberate fraud.
johnsonle1

Scientists Find First Observed Evidence That Our Universe May Be a Hologram | Big Think - 1 views

  • all the information in our 3-dimensional reality may actually be included in the 2-dimensional surface of its boundaries. It's like watching a 3D show on a 2D television.
  • the team found that the observational data they found was largely predictable by the math of holographic theory. 
  • After this phase comes to a close, the Universe goes into a geometric phase, which can be described by Einstein's equations.
  • ...1 more annotation...
  • It's a new paradigm for a physical reality.
  •  
    As we watched in the video "Spooky Science" in TOK, we saw how 2D and 3D world are very distinctive, but in this article, the author discussed another theory that our 3D reality may actually be included in the 2D surface of its boundaries. This theory is a rival to the theory of cosmic inflation. The holographic theory not only explains the abnormalities, it is also a more simple theory of the early universe. Now the scientists find that the math of holographic theory can very much predict the data, so it has the potential to be a new paradigm for a physical reality. --Sissi (2/6/2017)
  •  
    What is the holographic universe idea? It's not exactly that we are living in some kind of Star Trekky computer simulation. Rather the idea, first proposed in the 1990s by Leonard Susskind and Gerard 't Hooft, says that all the information in our 3-dimensional reality may actually be included in the 2-dimensional surface of its boundaries. It's like watching a 3D show on a 2D television.
Javier E

Anti-vaccine activists, 9/11 deniers, and Google's social search. - Slate Magazine - 1 views

  • democratization of information-gathering—when accompanied by smart institutional and technological arrangements—has been tremendously useful, giving us Wikipedia and Twitter. But it has also spawned thousands of sites that undermine scientific consensus, overturn well-established facts, and promote conspiracy theories
  • Meanwhile, the move toward social search may further insulate regular visitors to such sites; discovering even more links found by their equally paranoid friends will hardly enlighten them.
  • Initially, the Internet helped them find and recruit like-minded individuals and promote events and petitions favorable to their causes. However, as so much of our public life has shifted online, they have branched out into manipulating search engines, editing Wikipedia entries, harassing scientists who oppose whatever pet theory they happen to believe in, and amassing digitized scraps of "evidence" that they proudly present to potential recruits.
  • ...9 more annotations...
  • The Vaccine article contains a number of important insights. First, the anti-vaccination cohort likes to move the goal posts: As scientists debunked the link between autism and mercury (once present in some childhood inoculations but now found mainly in certain flu vaccines), most activists dropped their mercury theory and point instead to aluminum or said that kids received “too many too soon.”
  • Second, it isn't clear whether scientists can "discredit" the movement's false claims at all: Its members are skeptical of what scientists have to say—not least because they suspect hidden connections between academia and pharmaceutical companies that manufacture the vaccines.
  • mere exposure to the current state of the scientific consensus will not sway hard-core opponents of vaccination. They are too vested in upholding their contrarian theories; some have consulting and speaking gigs to lose while others simply enjoy a sense of belonging to a community, no matter how kooky
  • attempts to influence communities that embrace pseudoscience or conspiracy theories by having independent experts or, worse, government workers join them—the much-debated antidote of “cognitive infiltration” proposed by Cass Sunstein (who now heads the Office of Information and Regulatory Affairs in the White House)—w
  • perhaps, it's time to accept that many of these communities aren't going to lose core members regardless of how much science or evidence is poured on them. Instead, resources should go into thwarting their growth by targeting their potential—rather than existent—members.
  • Given that censorship of search engines is not an appealing or even particularly viable option, what can be done to ensure that users are made aware that all the pseudoscientific advice they are likely to encounter may not be backed by science?
  • One is to train our browsers to flag information that may be suspicious or disputed. Thus, every time a claim like "vaccination leads to autism" appears in our browser, that sentence woul
  • The second—and not necessarily mutually exclusive—option is to nudge search engines to take more responsibility for their index and exercise a heavier curatorial control in presenting search results for issues like "global warming" or "vaccination." Google already has a list of search queries that send most traffic to sites that trade in pseudoscience and conspiracy theories; why not treat them differently than normal queries? Thus, whenever users are presented with search results that are likely to send them to sites run by pseudoscientists or conspiracy theorists, Google may simply display a huge red banner asking users to exercise caution and check a previously generated list of authoritative resources before making up their minds.
  • In more than a dozen countries Google already does something similar for users who are searching for terms like "ways to die" or "suicidal thoughts" by placing a prominent red note urging them to call the National Suicide Prevention Hotline.
grayton downing

Accused "Fraudster" Heads Two Journals | The Scientist Magazine® - 0 views

  • Dmitry Kuznetsov, a Russian biochemist whose published work has been repeatedly alleged to be fraudulent, is now the chief editor of two science journals. The appointments are raising questions about the scientific integrity of the publications.
  • one of the worst fraud records in the history of science,” said Dan Larhammar, a professor at Uppsala University in Sweden who has written about problems in Kuznetsov's work. “That should be a major concern to” the publisher that recruited Kuznetsov as editor-in-chief, he said.
  • “As a result of these claims [by Kuznetsov and colleagues] a couple of students have spent several years of their life on a wild goose chase,” Coey told The Scientist.
  • ...3 more annotations...
  • researchers in various fields of study have also voiced their concerns about the quality of Kuznetsov’s research
  • the questions concerning Kuznetsov’s work, researchers who have published in one of the journals he edits, the British Journal of Medicine and Medical Research, report having no abnormal interactions with the editors during the review process. “I found my experience with that journal to be no different than with any other,”
  • Swanson said he has no way to judge the validity of the accusations against Kuznetsov, and that it would be unfair to jump to conclusions. If the allegations are true, however, “it certainly hurts the reputation of their journal, and I suspect they would rectify that problem (again, if there is truth here) fairly quickly. Most reputable researchers would not want to submit to such a journal.”
grayton downing

The Art of Science | The Scientist Magazine® - 0 views

  • According to the exhibition’s organizers, art and science both “involve the pursuit of those moments of discovery when what is perceived suddenly becomes more than the sum of its parts.”
  • the natural beauty of C. elegans suddenly sent a scientist in search of a camera—in this case the camera in her phone
  • “I held it right up to the microscope eyepiece and took a photo,” she says. “A quick Instagram filter later, and I had my image.” After sharing the image with the world, some of Wright’s non-biologist friends, many of whom had never heard of C. elegans, told her they wanted to know more about the model organism. 
  • ...3 more annotations...
  • “[Science] requires technical skill and it is a process of creating something new where you cannot always predict the outcome.”
  • Many scientists work under the principle that beauty and simplicity often underlie phenomena in nature,” says biophysicist Joshua Shaevitz. His work, “The history of gliding,”
  • is a dazzling array of colorful filaments made by tracking the paths of hundreds of thousands of the social bacterium Myxococcus xanthus. “The process of scientific research often seems dull from the outside, but on the inside there are stunningly beautiful elements to all aspects of nature,” says Shaevitz.
Adam Clark

10 Scientific Ideas That Scientists Wish You Would Stop Misusing - 1 views

  •  
    Many ideas have left the world of science and made their way into everyday language - and unfortunately, they are almost always used incorrectly. We asked a group of scientists to tell us which scientific terms they believe are the most widely misunderstood. Here are ten of them.
carolinewren

US bringing up the middle on gender-science stereotyping - 0 views

  • Gender stereotyping in which men are more strongly associated with science than women has been found in some unlikely countries, with the Netherlands leading the list and the United States in the middle at 38th, according to research that surveyed more than 350,000 people in 66 countries through a website called Project Implicit.
  • asked those surveyed how much they associated science with men or women and how quickly they associated words like "math" or "physics" with words like "woman" or "man." But they were not asked whether men or women were more competent at science.
  • "Educators should present examples beyond Marie Curie to help shape students' beliefs about who pursues science," said Linn. "Students reconsider who pursues science when they can compare examples of female scientists and reflect on their beliefs."
  • ...4 more annotations...
  • only 26.6 percent of U.S. scientists are women, the 10th worst showing below No. 1 Japan with 12 percent women scientists.
  • Latvia, at No. 58, had the highest proportion, with 51.8 percent women scientists.
  • But change is on the way
  • Iran had the best showing in this category, at No. 60, with women representing 67.3 percent of college science majors.
grayton downing

Language Makes the Invisible Visible | The Scientist Magazine® - 0 views

  • Language helps the human brain perceive obscured objects,
  • While some scientists have argued that vision is independent from outside factors, such as sounds or the brain’s accumulated knowledge, the study indicates that language influences perception at its most basic level.
  • “I think [the study] makes a really important contribution to the field of visual perception and cognition in general,” said Michael Spivey,
  • ...6 more annotations...
  • tested the effects of language on perception by either saying or not saying a word and showing study participants either an obscured image that matched the word, an obscured image that did not match the word, or no image at all. Images ranged from kangaroos to bananas to laundry baskets. The researchers then asked the participants if they had perceived any objects and, if so, ascertained what they had seen.
  • participants were more likely to perceive an image if they had been given an accurate verbal cue first than if they had been given no cue or an incorrect one. With an accurate cue, they identified the object correctly around 50 percent and 80 percent of the time
  •  By using continuous flash suppression, Lupyan has “done the best job yet of showing where the interaction happening is in perception,” Spivey said.
  • Lupyan said that his work could help researchers discern whether people who speak different languages perceive the world differently. For instance, if two people spoke different languages that either did or did not have words for a certain color or texture, the person lacking language to describe the color or texture might be less likely to perceive it.
  • “More and more what the field is finding is that any cognitive or perceptual capacity you find interesting is probably richly connected with other ones.” “The visual system—and perception in general—uses all the information it can get to make sense of the inputs,” said Lupyan. “Vision is not just about the photons hitting the eye.”
  • “The visual system—and perception in general—uses all the information it can get to make sense of the inputs,” said Lupyan
grayton downing

Lab-Grown Model Brains | The Scientist Magazine® - 0 views

  • In an Austrian laboratory, a team of scientists has grown three-dimensional models of embryonic human brain
  • “Even the most complex organ—the human brain—can start to form without any micro-manipulation.”
  • Knoblich cautioned that the organoids are not “brains-in-a-jar.” “We’re talking about the very first steps of embryonic brain development, like in the first nine weeks of pregnancy,” he said. “They’re nowhere near an adult human brain and they don’t form anything that resembles a neuronal network.”
  • ...6 more annotations...
  • It took a huge amount of work to fine-tune the conditions, but once the team did, the organoids grew successfully within just 20 to 30 days.
  • scientists have developed organoids that mimic several human organs, including eyes, kidneys, intestines, and even brains.
  • They really highlight the ability just nudge these human embryonic cells and allow them to self-assemble
  • The mouse brain isn’t good enough for studying microcephaly,” said Huttner. “You need to put those genes into an adequate model like this one. It is, after all, human. It definitely enriches the field. There’s no doubt about that.”
  • organoids are unlikely to replace animal experiments entirely. “We can’t duplicate the elegance with which one can do genetics in animal models,” he said, “but we might be able to reduce the number of animal experiments, especially when it comes to toxicology or drug testing.”
  • the future, he hopes to develop larger organoids.
« First ‹ Previous 41 - 60 of 709 Next › Last »
Showing 20 items per page