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Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Monday, March 18, 2024

Western scientists should continue to cooperate with Chinese scientists

China has become a science powerhouse and it achieved this goal, in part, by sending its young scientitsts abroad to train in universities in Canada, Australia, United States, and Europe. Many of these countries have signed scientific cooperation agreements with China but some of those agreements are in danger of lapsing as China is increasingly seen as an untrustworthy enemy.

Friday, March 03, 2023

Do you understand the scientific literature?

I'm finding it increasingly difficult to understand the scientific literature even in subjects that I've been following for decades. Is it just because I'm getting too old to keep up?

Here's an example of a paper that I'd like to understand but after reading the abstract and the introduction I gave up. I'll quote the first paragraph of the introduction to see if any Sandwalk readers can do better.

I'm not talking about the paper being a complete mystery; I can figure out roughly what's it's about. What I'm thinking is that the opening paragraph could have been written in a way that makes the goals of the research much more comprehensible to average scientifically-literate people.

Weiner, D. J., Nadig, A., Jagadeesh, K. A., Dey, K. K., Neale, B. M., Robinson, E. B., ... & O’Connor, L. J. (2023) Polygenic architecture of rare coding variation across 394,783 exomes. Nature 614:492-499. [doi = 10.1038/s41586-022-05684-z]

Genome-wide association studies (GWAS) have identified thousands of common variants that are associated with common diseases and traits. Common variants have small effect sizes individually, but they combine to explain a large fraction of common disease heritability. More recently, sequencing studies have identified hundreds of genes containing rare coding variants, and these variants can have much larger effect sizes. However, it is unclear how much heritability rare variants explain in aggregate, or more generally, how common-variant and rare-variant architecture compare: whether they are equally polygenic; whether they implicate the same genes, cell types and genetically correlated risk factors; and whether rare variants will contribute meaningfully to population risk stratification.

The first question that comes to mind is whether the variant that's associated with a common disease is the cause of that disease or merely linked to the actual cause. In other words, are the associated variants responsible for the "effect size"? It sounds like the answer is "yes" in this case. Has that been firmly esablished in the GWAS field?


Thursday, February 16, 2023

Birds of a feather: epigenetics and opposition to junk DNA

There's an old saying that birds of a feather flock together. It means that people with the same interests tend to associate with each other. It's extended meaning refers to the fact that people who believe in one thing (X) tend to also believe in another (Y). It usually means that X and Y are both questionable beliefs and it's not clear why they should be associated.

I've noticed an association between those who promote epigenetics far beyond it's reasonable limits and those who reject junk DNA in favor of a genome that's mostly functional. There's no obvious reason why these two beliefs should be associated with each other but they are. I assume it's related to the idea that both beliefs are presumed to be radical departures from the standard dogma so they reinforce the idea that the author is a revolutionary.

Or maybe it's just that sloppy thinking in one field means that sloppy thinking is the common thread.

Here's an example from Chapter 4 of a 2023 edition of the Handbook of Epigenetics (Third Edition).

The central dogma of life had clearly established the importance of the RNA molecule in the flow of genetic information. The understanding of transcription and translation processes further elucidated three distinct classes of RNA: mRNA, tRNA and rRNA. mRNA carries the information from DNA and gets translated to structural or functional proteins; hence, they are referred to as the coding RNA (RNA which codes for proteins). tRNA and rRNA help in the process of translation among other functions. A major part of the DNA, however, does not code for proteins and was previously referred to as junk DNA. The scientists started realizing the role of the junk DNA in the late 1990s and the ENCODE project, initiated in 2003, proved the significance of junk DNA beyond any doubt. Many RNA types are now known to be transcribed from DNA in the same way as mRNA, but unlike mRNA they do not get translated into any protein; hence, they are collectively referred to as noncoding RNA (ncRNA). The studies have revealed that up to 90% of the eukaryotic genome is transcribed but only 1%–2% of these transcripts code for proteins, the rest all are ncRNAs. The ncRNAs less than 200 nucleotides are called small noncoding RNAs and greater than 200 nucleotides are called long noncoding RNAs (lncRNAs).

In case you haven't been following my blog posts for the past 17 years, allow me to briefly summarize the flaws in that paragraph.

  • The central dogma has nothing to do with whether most of our genome is junk
  • There was never, ever, a time when knowledgeable scientists defended the idea that all noncoding DNA is junk
  • ENCODE did not "prove the significance of junk DNA beyond any doubt"
  • Not all transcripts are functional; most of them are junk RNA transcribed from junk DNA

So, I ask the same question that I've been asking for decades. How does this stuff get published?


Monday, January 02, 2023

Jupiter weighs two quettagrams

New names for very large and very small weights and sizes have been adopted.

Last November's meeting of the General Conference on Weights and Measures wasn't covered by the major media outlets so you probably don't know that the mass of an electron is now one rontogram and the diameter of the universe is about one ronnameter [SI units get new prefixes for huge and tiny numbers].1

The official SI prefixes for very large things are now ronna (1027) and quetta (1030) and the prefixes for very small things are ronto (10-27) and quecto (10-30).

This is annoying because we've just gotten used to zetta, yotta, zepto, and yocto (adopted in 1991). I suspect that the change was prompted by the huge storage capacity of your latest smartphone (several yottabytes) and the wealth of the world's richest people (several zeptocents). Or maybe it was the price of houses in Toronto. Or something like that. In any case, we needed to prepare for kilo or mega increases.

The bad news is that the latest additions used up the last two available letters of the alphabet so if things get any bigger or smaller we may have to add a few more letters to the alphabet.


1. A friendly reader has pointed out that my title should have been "The mass of Jupiter is two quettagrams." My bad.

Friday, December 16, 2022

Publishing a science book - Lesson #1: The publisher is always right about everything

Don't bother trying to reason with a publisher. All of them have different views on proper style and every single one of them is absolutely certain that their style is the only correct one.

I'm in the middle of the copyedit stage of my book. This is the stage where a copyeditor goes through your manuscript and makes any corrections to spelling and grammar. This is a lot of work for any copyeditor having to deal with one of my manuscripts and I greatly appreciate the effort. My book is a lot better now than it was a few weeks ago. (Who knew that there was only one l in canceled?)

It's also the stage where the publisher imposes their particular style on the manusript and that can be a problem. I'll document some of the issues in subsequent posts but to give you an example, consider the titles of books in the reference list. I wrote it like this: The Selfish Gene and Molecular and Genome Evolution. This is not in line with my publisher's handbook of style so the titles were converted to lowercase as in: The selfish gene and Molecular and genome evolution. I objected, pointing to numerous other science books that used the same titles that are on the covers of the books and suggesting that my readers were more familiar with The Selfish Gene than with The selfish gene.

I was overruled by my publisher who noted that they make their style choices for good reasons—it's for "consistency, clarity, and ease of reading." I assume that publishers, such as Oxford, would make the same argument while insisting that the title should be The Selfish Gene.

In case you ever find yourself in this position, you should keep in mind that your contract will almost certainly say that the publisher has complete control of your book and they can make any changes they want as long as it doesn't affect the meaning of what you wrote.

Here's what it says in my contract, "The Publisher shall publish the Author's work in whatever style and format it thinks most suitable ... While the Publisher may, in its sole discretion, consult the Author with respect to said style and format, the Publisher retains the right to make all final decisions on matters of format, design, selling price and marketing."

I was aware of some issues with inappropriate covers and tiles in the past so I had an extra sentence added to the contract that said, "The Publisher and Author will discuss and agree upon the title and cover design." It's a good thing I put that in because the publisher was pressuring me to change the title of the book and I was able to resist.

Authors can't win most fights over style and format. I've been discussing the publishing of science books with a number of other authors over the past few months and several of them told me not to bother trying to argue with a publisher because they will never give in. They have a set style for all books and they won't make an exception for an individual author no matter how good an argument you make.

I didn't listen to those other authors. Silly me.

I'm thinking of trying to write a standard set of guidelines that scientists could put into their contracts to cover the most egregious style restrictions. It might be helpful if all science writers would insist on inserting these guidelines into their contracts.


Monday, November 21, 2022

How not to write a Nature abstract

A friend recently posted a figure on Facebook that instructs authors in the correct way to prepare a summary paragraph (abstract) for publication in Nature. It uses a specific example and the advice is excellent [How to construct a Nature summary paragraph].

I thought it might be fun to annotate a different example so I randomly selected a paper on genomics to see how it compared. The one that popped up was An integrated encyclopedia of DNA elements in the human genome.


Monday, March 15, 2021

Is science the only way of knowing?

Most of us learned that science provides good answers to all sort of questions ranging from whether a certain drug is useful in treating COVID-19 to whether humans evolved from primitive apes. A more interesting question is whether there are any limitations to science or whether there are any other effective ways of knowing. The question is related to the charge of "scientism," which is often used as a pejorative term to describe those of us who think that science is the only way of knowing.

I've discussed these issue many times of this blog so I won't rehash all the arguments. Suffice to say that there are two definitions of science; the broad definition and the narrow one. The narrow definition says that science is merely the activity carried out by geologists, chemists, physicists, and biologists. Using this definition it would be silly to say that science is the only way of knowing. The broad definition can be roughly described as: science is a way of knowing that relies on evidence, logic (rationality), and healthy skepticism.

The broad definition is the one preferred by many philosophers and it goes something like this ...

Unfortunately neither "science" nor any other established term in the English language covers all the disciplines that are parts of this community of knowledge disciplines. For lack of a better term, I will call them "science(s) in the broad sense." (The German word "Wissenschaft," the closest translation of "science" into that language, has this wider meaning; that is, it includes all the academic specialties, including the humanities. So does the Latin "scientia.") Science in a broad sense seeks knowledge about nature (natural science), about ourselves (psychology and medicine), about our societies (social science and history), about our physical constructions (technological science), and about our thought construction (linguistics, literary studies, mathematics, and philosophy). (Philosophy, of course, is a science in this broad sense of the word.)

Sven Ove Hanson "Defining Pseudoscience and Science" in Philosophy of Pseudescience: Reconsidering the Demarcation Problem.

Friday, March 12, 2021

Is science a social construct?

Richard Dawkins has written an essay for The Spectator in which he says,

"[Science is not] a social construct. It’s simply true. Or at least truth is real and science is the best way we have of finding it. ‘Alternative ways of knowing’ may be consoling, they may be sincere, they may be quaint, they may have a poetic or mythic beauty, but the one thing they are not is true. As well as being real, moreover, science has a crystalline, poetic beauty of its own.

The essay is not particularly provocative but it did provoke Jerry Coyne who pointed out that, "The profession of science" can be contrued as a social construct. In this sense Jerry is agreeing with his former supervisor, Richard Lewontin1 who wrote,

"Science is a social institution about which there is a great deal of misunderstanding, even among those who are part of it. We think that science is an institution, a set of methods, a set of people, a great body of knowledge that we call scientific, is somehow apart from the forces that rule our everyday lives and tha goven the structure of our society... The problems that science deals with, the ideas that it uses in investigating those problems, even the so-called scientific results that come out of scientific investigation, are all deeply influenced by predispositions that derive from the society in which we live. Scientists do not begin life as scientists after all, but as social beings immersed in a family, a state, a productive structure, and they view nature through a lens that has been molded by their social structure."

Coincidently, I just happened to be reading Science Fictions an excellent book by Stuart Ritchie who also believes that science is a social construct but he has a slighly different take on the matter.

"Science has cured diseases, mapped the brain, forcasted the climate, and split the atom; it's the best method we have of figuring out how the universe works and of bending it to our will. It is, in other words, our best way of moving towards the truth. Of course, we might never get there—a glance at history shows us hubristic it is to claim any facts as absolute or unchanging. For ratcheting our way towards better knowledge about the world, though, the methods of science is as good as it gets.

But we can't make progress withthose methods alone. It's not enough to make a solitary observation in your lab; you must also convince other scientists that you've discovered something real. This is where the social part comes. Philosophers have long discussed how important it is for scientists to show their fellow researchers how they came to their conclusions.

Dawkins, Coyne, Lewontin, and Ritchie are all right in different ways. Dawkins is talking about science as a way of knowing, although he restricts his definition of science to the natural sciences. The others are referring to the practice of science, or as Jerry Coyne puts it, the profession. It's true that the methods of science are the best way we have to get at the truth and it's true that the way of knowing is not a social construct in any meanigful sense.

Jerry Coyne is right to point out that the methods are employed by human scientists (he's also restricting the practice of science to scientists) and humans are fallible. In that sense, the enterprise of (natural) science is a social construct. Lewontin warns us that scientists have biases and prejudices and that may affect how they do science.

Ritchie makes a diffferent point by emphasizing that (natural) science is a collective endeavor and that "truth" often requires a consensus. That's the sense in which science is social. This is supposed to make science more robust, according to Ritchie, because real knowledge only emerges after carefull and skeptical scrutiny by other scientists. His book is mostly about how that process isn't working and why science is in big trouble. He's right about that.

I think it's important to distinguish between science as a way of knowing and the behavior and practice of scientists. The second one is affected by society and its flaws are well-known but the value of science as way of knowing can't be so easily dismissed.


1. The book is actually a series of lectures (The Massey Lectures) that Lewontin gave in Toronto (Ontario, Canada) in 1990. I attended those lectures.

Thursday, December 31, 2020

On the importance of controls

When doing an exeriment, it's important to keep the number of variables to a minimum and it's important to have scientific controls. There are two types of controls. A negative control covers the possibility that you will get a signal by chance; for example, if you are testing an enzyme to see whether it degrades sugar then the negative control will be a tube with no enzyme. Some of the sugar may degrade spontaneoulsy and you need to know this. A positive control is when you deliberately add something that you know will give a positive result; for example, if you are doing a test to see if your sample contains protein then you want to add an extra sample that contains a known amount of protein to make sure all your reagents are working.

Lots of controls are more complicated than the examples I gave but the principle is important. It's true that some experiments don't appear to need the appropriate controls but that may be an illusion. The controls might still be necessary in order to properly interpret the results but they're not done because they are very difficult. This is often true of genomics experiments.

Friday, April 06, 2018

Cafe Scientific Mississauga: The Good, Bad, & Natural

Dan Riskin: The Good, Bad, & Natural: What Mother Nature says
about morality?


Thursday, April 12, 2018
7:30 - 10:00 pm
The Franklin House
263 Queen Street S
Streetsville (Mississauga), Ontario, Canada

"People often act like “natural” is synonymous with “good.” Using heinous examples from the scientific literature, Dan Riskin will blow the hinges off that misconception. Then he’ll give some thoughts about where, if not from nature, the roots of human morality might lie.

Dan Riskin, PhD, is a television personality, scientist, author, and podcaster. He is best known as the co-host of Discovery's flagship science program, Daily Planet, and as the host of Animal Planet's show about parasites, Monsters Inside Me. To make science accessible and interesting to wide audiences, Dan has appeared as a guest on The Tonight Show with Jay Leno, The Late Late Show with Craig Ferguson, The Dr. Oz Show, and on several news outlets, including CP24, CTV, CNN, and CBS. Dan has published more than 20 papers in scientific journals, and his first popular book, Mother Nature is Trying to Kill You was a Canadian bestseller.

IMPORTANT:
This meetup starts 30 minutes later than our regular meeting time to give Dan time to drive to Mississauga from Scarborough.
You are welcome to come at 7 or 7:30, but don't expect the talk to begin before 8 pm. It will definitely be worth it.
"


Monday, March 12, 2018

Is evolutionary psychology a deeply flawed enterprise?

We were discussing the field of evolutionary psychology at our local cafe scientific meeting last week. The discussion was prompted by watching a video of Steven Pinker in conversation with Stephen Fry. I pointed out that the field of evolutionary psychology is a mess and many scientists and philosophers think it is fundamentally flawed. The purpose of this post is to provide links to back up my claim.

Monday, February 12, 2018

Scientists fight back against fake news and pseudoscience

You probably know that climate change is real and humans are a major cause of global warming. You probably know that life has evolved and the Biblical story of creation is false. Scientists have been actively promoting these ideas for decades and they've been relatively successful in most countries. What you may not know is that these are just two of the many controversial claims that scientists are fighting. You may even have been tricked into believing some of the other pseudoscientific claims that are out there.

Friday, February 09, 2018

Junior scientist snowflakes

A recent letter in Nature draws attention to a serious (?) problem in modern society; namely, the persecution of junior scientists by older scientists who ask them tough questions. Anand Kumar Sharma warns us: "Don’t belittle junior researchers in meetings". Here's what he says, ...

The most interesting part of a scientific seminar, colloquium or conference for me is the question and answer session. However, I find it upsetting to witness the unnecessarily hard time that is increasingly given to junior presenters at such meetings. As inquisitive scientists, we do not have the right to undermine or denigrate the efforts of fellow researchers — even when their reply is unconvincing.

It is our responsibility to nurture upcoming researchers. Firing at a speaker from the front row is unlikely to enhance discussions. In my experience, it is more productive to offer positive queries and suggestions, and save negative feedback for more-private settings.

Thursday, July 06, 2017

Scientists say "sloppy science" more serious than fraud

An article on Nature: INDEX reports on a recent survey of scientists: Cutting corners a bigger problem than research fraud. The subtitle says it all: Scientists are more concerned about the impact of sloppy science than outright scientific fraud.

The survey was published on BioMed Central.

Thursday, August 18, 2016

Do you believe what's written in the introduction to this paper?

I came across this paper while doing research on alternative splicing. The introduction annoyed me. It illustrates what to my mind are some serious problems with modern scholarship.

Scotti, M.M. and Swanson, M.S. (2016) RNA mis-splicing in disease. Nature Reviews Genetics 17:19–3 [doi: 10.1038/nrg.2015.3]
Here's part of the first paragraph in the paper.
Recent analysis from the Encyclopedia of DNA Elements (ENCODE) project (GRCh38, Ensembl79) indicates that most of the human genome is transcribed and consists of ~60,000 genes (~20,000 protein-coding genes, ~16,000 long non-coding RNAs (lncRNAs), ~10,000 small non-coding RNA and 14,000 pseudogenes). Although this gene inventory will change with further analysis, the number of protein-coding genes is surprisingly low given the proteomic complexity that is evident in many tissues, particularly the central nervous system (CNS). High resolution mass spectrometry studies have identified peptides encoded by most of these annotated genes, but the number of isoforms expressed from this gene set has been estimated to be at least 5–10-fold higher. For example, long-read sequence analysis of adult mouse prefrontal cortex neurexin (Nrxn) mRNAs indicates that only three Nrxn genes produce thousands of isoform variants. This diversity is primarily generated by alternative splicing, with >90% of human protein-coding genes producing multiple mRNA isoforms.
Here are some of the problems I have with this introduction. My opinions on these issues differ from those of the authors.
  1. I think that pseudogenes are not genes.
  2. I think there are NOT ~16,000 lncRNAs and ~10,000 small-noncoding RNA genes. Instead, there are approximately this many putative or predicted genes, many of which will undoubtedly turn out not to be genes. Some of them will be pseudogenes.
  3. I don't think there's a discrepancy between the known number of protein-coding genes and proteomic complexity; therefore, it is misleading to say that the number of protein-coding genes is "surprisingly low."
  4. I'm pretty sure that nobody has ever proposed a truly scientific "estimate" of isoforms showing that the number should be 5-10-fold higher than the number of genes. This is all speculation and guesswork based mostly on deflated egos.
  5. It is not true that >90% of human genes produce multiple mRNA isoforms by alternative splicing. What IS true is that for every human gene researchers have detected low levels of non-canonical splice events upon careful analysis of the transcriptome. We do not know whether these represent true biologically relevant alternative splicing or simply splicing errors. All available evidence suggests that the vast majority are splicing errors.
The authors are certainly entitled to their opinion ... even if it differs from mine!

But surely there has to be a better way of expressing this opinion to make it clear that they aren't stating facts but just their own personal views based on their own interpretation of the literature? This becomes very important if there's widespread scientific controversy over some of these opinions. (It's not so important if there's widespread agreement, or consensus, in the scientific community. In those cases, you aren't obliged to mentions alternative views held by kooks.)

I believe that scientists have an ethical obligation to distinguish between fact and opinion and to make it very clear in their writings which is which. I don't know whether Scotti and Swanson know about the controversial aspect of their statements and are deliberately avoiding any mention of them, or whether they actually believe that their statements are factual. Either way, we have a problem.


Saturday, August 13, 2016

Twenty "sciencey" questions for Trump and Clinton

ScienceDebate.org is a group that wants a "science" debate between Presidential candidates in the upcoming American election. That's not going to happen so the next best thing is to demand that the candidates answer their 20 questions about Science, Engineering, Technology, Health, and the Environment. I would not answer these questions if I were a candidate. Many of them require extraordinarily complex answers. Some of them are based on false premises. Several are loaded. Some of the problems can't be dealt with in any realistic way by a President of the United States. Quite a few cannot be answered in any meaningful way without writing a book.

I'm not sure what this group expects. This seems to be a colossal waste of time. It also seems to be very low on the priority list given all the other problems with Trump and Clinton. The questions don't inspire confidence in ScienceDebate, in my opinion. Here are the questions from: 20 Questions.
  1. Science and engineering have been responsible for over half of the growth of the U.S. economy since WWII. But some reports question America’s continued leadership in these areas. What policies will best ensure that America remains at the forefront of innovation?
  2. Many scientific advances require long-term investment to fund research over a period of longer than the two, four, or six year terms that govern political cycles. In the current climate of budgetary constraints, what are your science and engineering research priorities and how will you balance short-term versus long-term funding?
  3. The Earth’s climate is changing and political discussion has become divided over both the science and the best response. What are your views on climate change, and how would your administration act on those views?
  4. Biological diversity provides food, fiber, medicines, clean water and many other products and services on which we depend every day. Scientists are finding that the variety and variability of life is diminishing at an alarming rate as a result of human activity. What steps will you take to protect biological diversity?
  5. The Internet has become a foundation of economic, social, law enforcement, and military activity. What steps will you take to protect vulnerable infrastructure and institutions from cyber attack, and to provide for national security while protecting personal privacy on electronic devices and the internet?
  6. Mental illness is among the most painful and stigmatized diseases, and the National Institute of Mental Health estimates it costs America more than $300 billion per year. What will you do to reduce the human and economic costs of mental illness?
  7. Strategic management of the US energy portfolio can have powerful economic, environmental, and foreign policy impacts. How do you see the energy landscape evolving over the next 4 to 8 years, and, as President, what will your energy strategy be?
  8. American students have fallen in many international rankings of science and math performance, and the public in general is being faced with an expanding array of major policy challenges that are heavily influenced by complex science. How would your administration work to ensure all students including women and minorities are prepared to address 21st century challenges and, further, that the public has an adequate level of STEM literacy in an age dominated by complex science and technology?
  9. Public health efforts like smoking cessation, drunk driving laws, vaccination, and water fluoridation have improved health and productivity and save millions of lives. How would you improve federal research and our public health system to better protect Americans from emerging diseases and other public health threats, such as antibiotic resistant superbugs?
  10. The long-term security of fresh water supplies is threatened by a dizzying array of aging infrastructure, aquifer depletion, pollution, and climate variability. Some American communities have lost access to water, affecting their viability and destroying home values. If you are elected, what steps will you take to ensure access to clean water for all Americans?
  11. Nuclear power can meet electricity demand without producing greenhouse gases, but it raises national security and environmental concerns. What is your plan for the use, expansion, or phasing out of nuclear power, and what steps will you take to monitor, manage and secure nuclear materials over their life cycle?
  12. Agriculture involves a complex balance of land and energy use, worker health and safety, water use and quality, and access to healthy and affordable food, all of which have inputs of objective knowledge from science. How would you manage the US agricultural enterprise to our highest benefit in the most sustainable way?
  13. We now live in a global economy with a large and growing human population. These factors create economic, public health, and environmental challenges that do not respect national borders. How would your administration balance national interests with global cooperation when tackling threats made clear by science, such as pandemic diseases and climate change, that cross national borders?
  14. Science is essential to many of the laws and policies that keep Americans safe and secure. How would science inform your administration's decisions to add, modify, or remove federal regulations, and how would you encourage a thriving business sector while protecting Americans vulnerable to public health and environmental threats?
  15. Public health officials warn that we need to take more steps to prevent international epidemics from viruses such as Ebola and Zika. Meanwhile, measles is resurgent due to decreasing vaccination rates. How will your administration support vaccine science?
  16. There is a political debate over America’s national approach to space exploration and use. What should America's national goals be for space exploration and earth observation from space, and what steps would your administration take to achieve them?
  17. There is a growing opioid problem in the United States, with tragic costs to lives, families and society. How would your administration enlist researchers, medical doctors and pharmaceutical companies in addressing this issue?
  18. There is growing concern over the decline of fisheries and the overall health of the ocean: scientists estimate that 90% of stocks are fished at or beyond sustainable limits, habitats like coral reefs are threatened by ocean acidification, and large areas of ocean and coastlines are polluted. What efforts would your administration make to improve the health of our ocean and coastlines and increase the long-term sustainability of ocean fisheries?
  19. There is much current political discussion about immigration policy and border controls. Would you support any changes in immigration policy regarding scientists and engineers who receive their graduate degree at an American university? Conversely, what is your opinion of recent controversy over employment and the H1-B Visa program?
  20. Evidence from science is the surest basis for fair and just public policy, but that is predicated on the integrity of that evidence and of the scientific process used to produce it, which must be both transparent and free from political bias and pressure. How will you foster a culture of scientific transparency and accountability in government, while protecting scientists and federal agencies from political interference in their work?


Saturday, July 30, 2016

The most important thing about nature according to Bill Martin

My friend and colleague, Alex Palazzo, alerted me to an interview of Bill Martin published in the July 11, 2016 issue of Current Biology [Bill Martin]. I loved all his answers—Bill Martin is one of my scientific heroes—but his answer to the last question was particularly insightful. The question was, "What’s the single most important thing that you have come to realize about nature?"

His answer was ....
Life is an exergonic chemical reaction. It’s the energy releasing redox reaction at the core of metabolism that makes life run, and throughout all of life’s history it is one and the same reaction that has been running in uninterrupted continuity from life’s onset. Everything else is secondary, manifestations of what is possible when the energy is harnessed to make genes that pass the torch.
I'm a biochemist so you might think I'm a little bit biased but let me tell you why this answer is so important.

Thursday, July 14, 2016

The seven biggest problems in science

Here's an interesting article about the biggest problems in (American) science: The 7 biggest problems facing science, according to 270 scientists. Most of them apply to science in other countries.

I've added brief comments under six of the headings. Those are MY opinions, not necessarily those of the authors. The comment under #6 is a direct quote from the article.
  1. Academia has a huge money problem.
    There's not enough money to do high quality science, especially basic science.
  2. Too many studies are poorly designed. Blame bad incentives.
    Some experiments are poorly designed. All scientists are under pressure to make their results seem important.
  3. Replicating results is crucial. But scientists rarely do it.
    Replication is important—especially in medical studies—but I think this problem is exaggerated.
  4. Peer review is broken.
    The system (peer review) isn't working well. That doesn't mean there's a better system.
  5. Too much science is locked behind paywalls.
    This was never a problem in the past when you had to go to the library to read science journals. You could photocopy whatever you wanted. Now it's a problem because we want instant access from our laptops.
  6. Science is poorly communicated to the public.
    "But not everyone blamed the media and publicists alone. Other respondents pointed out that scientists themselves often oversell their work, even if it's preliminary, because funding is competitive and everyone wants to portray their work as big and important and game-changing.

    'You have this toxic dynamic where journalists and scientists enable each other in a way that massively inflates the certainty and generality of how scientific findings are communicated and the promises that are made to the public,' writes Daniel Molden, an associate professor of psychology at Northwestern University. 'When these findings prove to be less certain and the promises are not realized, this just further erodes the respect that scientists get and further fuels scientists desire for appreciation.'
    "
  7. Life as a young academic is incredibly stressful.
    This is not just a problem for my younger colleagues. It affects all of us. It affects morale in an academic department and it affects the way science is done.

Monday, July 11, 2016

Science journal tries to fix problems with transparency and trustworthiness

The editors of Science recognize that they have a problem. They aren't very transparent or trustworthy. This is true. These same editors have been guilty of publishing and promoting lots of poor quality science over the past few years. Three examples come to mind ...

  • Arseniclife: Science published a ridiculous claim that arsenic could replace phosphorus in DNA. That paper has been refuted but never retracted.
  • Ardipithicus ramidus: Science fell for the authors' hype.
  • ENCODE: Science falls for the hype promoted by ENCODE leaders. Editorial and feature writers announce the death of junk DNA

Don't worry. The editors have been working hard to fix the problem. After a year of study they announce their solution in the June 3, 2016 issue in the lead editorial: Taking up TOP. The author is the current Editor-in-Chief, Marcia McNutt.

She begins with ...
Nearly 1 year ago, a group of researchers boldly suggested that the standards for research quality, transparency, and trustworthiness could be improved if journals banded together to adopt eight standards called TOP (Transparency and Openness Promotion).* Since that time, more than 500 journals have been working toward their implementation of TOP. The editors at Science have held additional retreats and workshops to determine how best to adapt TOP to a general science journal and are now ready to announce our new standards, effective 1 January 2017.
So, what is TOP and how is it going to make Science more trustworthy? Does it involve firing some well-known writers and editors? Does it involve better reviewers?

Nope. TOP is just a way of making sure that raw data is available to other researchers.
... we believe the benefits of requiring the availability of data, code, and samples on which the authors' interpretations rest are worth the effort in compliance (and in some cases in adjusting data ownership expectations), while acknowledging that some special circumstances will require exemptions. This practice increases transparency, enables reproducibility, promotes data reuse, and is increasingly in line with funder mandates. We are also requiring the citation of all data, program code, and other methods not contained in the paper, using DOIs (digital object identifiers), journal citations, or other persistent identifiers, for the same reason. Citations reward those who originated the data, samples, or code and deposited them for reuse. Such a policy also allows accurate accounting for exactly which specific data, samples, or code were used in a given study.
That's not going to fix the main problem.