biology
esiegel | October 2, 2013"Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science." -Charles Darwin
There are problems with science today, no doubt. With all the knowledge we've accumulated about the Universe, from the smallest subatomic scales to the farthest recesses of deep space, there are still realms and regimes where our best theories fail, where the predictions and the data don't match, and where no known explanation is sufficient for the phenomena that shows up…
carlyo | September 5, 2013Plant Biologist Eloy Rodriguez came from humble beginnings and now is a leading authority on ethnobotanical medicine.
Eloy Rodriguez is an expert of ethnobotanical medicine (the benefits of natural plants to healing and disease prevention). He coined the concept and study of zoopharmacognosy, the process by which non-human animals(such as apes) self-medicate by selecting and using plants to treat and prevent disease.
Cited in books and passed down for centuries, plants have been used for ages by many ethnic cultures to treat infections, cancer, diabetes, malaria and other illnesses. "In…
esiegel | August 9, 2013“Next to reasoning, the greatest handicap to the optimum development of Man lies in the fact that this planet is just barely habitable. Its minimum temperatures are too low, and its maximum temperatures too high. Its day is not long enough, and its night is too long... These factors encourage depression, fear, war, and lack of vitality. They describe a planet, which is by no means perfectly devised for the nurturing or for the perpetuation of a higher intelligence.” -James Thurber
It's been just about three years, now, since the first announced discovery of a planet in another star system…
esiegel | August 7, 2013"Education is the ability to listen to almost anything without losing your temper or your self-confidence." -Robert Frost
Middle school -- or junior high, which we called it when I went -- should really be classified as a form of child abuse. I recognize that it isn't as bad for everyone as it was for me, but those two years I spent in 7th and 8th grade were easily the worst and most unhappy times of my life.
Image credit: Edgewood Middle School of Hartford County, via http://www.hcps.org/.
Maybe that's hyperbole, or maybe you have a similar feeling when you look back on that time. Moving…
esiegel | August 1, 2013“We are not simply in the universe, we are part of it. We are born from it.” -Neil deGrasse Tyson
The story of the Universe is the story of us all; we all share the same cosmic history, coming from a hot, dense state some 13.8 billion years ago known as the Big Bang and emerging after billions of years of cosmic evolution to the Universe we know and love today.
Image credit: ESA and the Planck collaboration.
It's a beautiful story -- and one I've told before -- but it might seem, at least from our perspective, that something is missing from the astrophysicist's version of events. Yes, we…
esiegel | July 28, 2013"If you think you're too small to have an impact, try going to bed with a mosquito." -Anita Roddick
There's a lot to enjoy when it's warm and tropical, which it is many places this time of year. The flowers are out, the Sun often shines, and there's no shortage of spectacular music. Have a listen to to West Virginia-based band The Recipe, as they rock out (and give a shout-out to Neil Armstrong's moonwalk) in their great song,
Whiskey Pickle.
But there's an unwelcome visitor that comes along with this kind of weather: the mosquito.
Image credit: public domain image; source unknown.
Some…
esiegel | July 6, 2013"If I see a spider in my house, I put it in a cup, and then I take it outside. I save it. What is wrong with me?" -Jacqueline Emerson
There's something not only incredibly useful but also beautiful about the intricate structure of a spider web. It's such a universally admired phenomenon that it's become a metaphor for many other things, as Welbilt sings you in their song,
Spiderweb.
Dependent on the type of spider and various environmental factors, the web can take on any number of beautiful shapes.
Image credit: Darlyne Murawski, via National Geographic Society, 2007.
Image credit:…
oracknows | June 16, 2013I never used to write much about genetically modified organisms (GMOs) before. I still don't do it that often. For whatever reason, it just hasn't been on my radar very much. That seems to be changing, however. It's not because I went seeking this issue out (although I must admit that I first became interested in genetic engineering when I was in junior high and read a TIME Magazine cover article about it back in the 1970s), but rather because in my reading I keep seeing it more and more in the context of anti-GMO activists using bad science and bad reasoning to justify a campaign to demonize…
esiegel | June 5, 2013"You can spend too much time wondering which of identical twins is the more alike." -Robert Brault
You've of course heard by now the news that Kepler, the most successful and prolific planet-finding mission of all time, has probably reached the end of its useful lifespan.
Image credit: NASA / Kepler Mission / Wendy Stenzel.
With nearly 3,000 planet candidates under its belt, including many approximately Earth-sized (and some even smaller), and many within their parent star's habitable zone, we now know that, at least planet-wise, we're not alone in our galaxy.
Image credit: NASA Ames /…
oracknows | May 27, 2013I am taking the Memorial Day holiday off. I will return tomorrow. In the meantime, here's a general principle that needs to be remembered in cancer research:
I would also add to that list: So does bleach. So does acid. So does alkali. So does pouring the media out of the dish and letting the cells dry out. So does adding water to dilute the media. So do a variety of lethal poisons. So does heat. So does cold. The list goes on. Add to the list as you see fit!
The point, of course, is that it's very easy to kill cells in a cancer dish. What is difficult is selectively killing cancer cells in…
oracknows | May 6, 2013Stem cells are magical, mystical things that can't be explained.
At least, if you listen to what docs and "practitioners" who run stem cell clinics in various parts of the world, usually where regulation is lax and money from First World clientele is much sought after, that's what you could easily come to believe. Unfortunately, it's not just Third World countries in which "stem cell clinics" have proliferated. For instance, they are not nearly uncommon enough in Europe. The example that is most troubling right now is Italy, and the reason is that there is currently a law being considered…
esiegel | May 3, 2013“Talent hits the target no one else can hit; genius hits the target no one else can see.” -Arthur Schopenhauer
You've probably heard the story, by now, of Kiera Wilmot, the 16-year-old girl who performed a mildly dangerous chemistry experiment on school grounds, mixing together household cleaner and aluminum inside a sealed container. You can get the full story (excellently covered) via DNLee, but to give you the 15-second version, she was arrested, expelled, and is presently being charged with a felony that carries up to 5 years in prison. The school board is not backing down, the attorney…
oracknows | May 1, 2013Here we go again.
One of the greatest threats to biomedical research, in the U.S. at least, is the truly crappy research funding environment, a situation that hasn't been this bad for at least 20 years. Labs are closing; investigators are giving up; and fewer of our young best and brightest are interested in a career in biomedical research. However, there are other threats. Although they're not as big a threat in the US as they are in Europe, animal rights activists have nonetheless managed to intimidate scientists here, harass idealistic young students interested in a career in science in a…
oracknows | April 22, 2013I've written a lot about a doctor named Stanislaw Burzynski who claims to have much better outcomes in treating deadly brainstem tumors than conventional oncology does. Although the way he claims to do it is through the use of substances he calls "antineoplastons," which he claimed to have isolate from the urine of patients. Over 35 years after having formed his own clinic and "research institute" to use these compounds to treat cancer and after having had over 60 phase I and phase II clinical trials registered with ClinicalTrials.gov, with none of these completed trials having been published…
oracknows | April 21, 2013Heidi Stevenson amuses me. I know, I know, I've started a previous post with exactly this sentence a mere month ago, but it's so damned appropriate that I can't help but try it again.
A homeopath (which means that she's reality-challenged to begin with), she's produced some of the most hilariously off-base, pseudoscientific, and downright antiscientific articles I've ever seen. Examples include the times when she launched a truly nonsensical attack on Stephen Barrett of Quackwatch, lectured scientists about anecdotal evidence, or, most hilariously of all, utterly misunderstood the concept of…
esiegel | April 21, 2013"Fluoridation is the single most important commitment a community can make to the oral health of its children and to future generations." -C. Everett Koop
Most weekends, I take on a lighter topic, as a way of taking a break from the deep physics, astronomy, and science we share during the week. But every once in a while, there's an important story that needs to be told. This weekend, I invite you to enjoy Tony Rice's rendition of a fabulous Gordon Lightfoot story song,
Wreck of the Edmund Fitzgerald.
One of the most contentious issues going on in my city -- Portland, OR -- right now, is our…
esiegel | April 7, 2013"Acceptance is not love. You love a person because he or she has lovable traits, but you accept everybody just because they're alive and human." -Albert Ellis
In my experience as a human being, I've seen far too often what evils can come from judging people who are different from you and the groups you identify with. We're all unique creatures, and we all will face many of the same challenges and fears in our lives, as Natalie Merchant reminds us in her rendition of the folk classic,
Poor Wayfaring Stranger.
I don't have the right to speak for anyone other than myself, of course, but I have…
esiegel | March 29, 2013“If the Universe Is Teeming with Aliens… Where Is Everybody?” -Stephen Webb
It's one of the biggest conundrums in the Universe, known as the Fermi Paradox: if the Universe is so conducive to life, and if there are so many opportunities for it within our galaxy alone, why isn't there any evidence (outside of the History Channel) of extraterrestrial life?
Image credit: Peter Essick, via National Geographic.
Moreover, why haven't we been visited by some extraterrestrial intelligence? After all, given the fact that our Universe is nearly 14 billion years old, while our galaxy itself is only a…
oracknows | March 20, 2013Heidi Stevenson amuses me.
The reasons are legion. Be it the time when Heidi lectured scientists on anecdotal evidence (which she values far more highly than scientists, of course, declaring it the "basis of all knowledge"); launched a vile and nonsensical attack on Stephen Barrett; argued against prior plausibility with using a straw man argument so massive that if it were set on fire (which she did) it could be seen from space; or made an even more idiotic argument to try to "prove" that wi-fi signals and EMF cause autism, Heidi never fails to deliver the stupid in mass quantities of black…
esiegel | February 24, 2013"When you have seen one ant, one bird, one tree, you have not seen them all." -E.O. Wilson
Sure, there are entire worlds within our world that we never even give a second thought to. There's an entire subterranean Universe to explore, and you might get the feeling to do it if you listen to Mecca Bodega's rumbling sound, in
Underground.
But as soon as those tiny critters begin invading your house, the wonder goes right out the window. In fact, you probably haven't thought much about them in terms other than how-to-poison-them in a long time.
Image credit: © 2013 Cool Exotic Pets.
But as a…