One more time: Recognizing bogus history

May 14, 2012
2012 is an election year, a time when we make history together as a nation.  Potential turning points in history often get tarred with false interpretations of history to sway an election, or worse, a completely false recounting of history.  Especially in campaigns, we need to beware false claims of history, lest we be like the ignorants George Santayana warned about, doomed to repeat errors of history they do not know or understand.  How to tell that a purported piece of history is bogus?  This is mostly a repeat of a post that first appeared at Millard Fillmore’s Bathtub six years ago.

Recognizing bogus history, 1

Robert Park provides a short e-mail newsletter every Friday, covering news in the world of physics. It’s called “What’s New.” Park makes an art of smoking out bogus science and frauds people try to perpetrate in the name of science, or for money. He wrote an opinion column for the Chronicle of Higher Education [now from Quack Watch; CHE put it behind a paywall] published January 31, 2003, in which he listed the “7 warning signs of bogus science.”

Please go read Park’s entire essay, it’s good.

And it got me thinking about whether there are similar warning signs for bogus history? Are there clues that a biography of Howard Hughes is false that should pop out at any disinterested observer? Are there clues that the claimed quote from James Madison saying the U.S. government is founded on the Ten Commandments is pure buncombe? Should Oliver Stone have been able to to more readily separate fact from fantasy about the Kennedy assassination (assuming he wasn’t just going for the dramatic elements)? Can we generalize for such hoaxes, to inoculate ourselves and our history texts against error?

Bogus science section of Thinkquest logo

Perhaps some of the detection methods Park suggests would work for history. He wrote his opinion piece after the Supreme Court’s decision in Daubert v. Merrell Dow Pharmaceuticals, Inc., in which the Court laid out some rules lower courts should use to smoke out and eliminate false science. As Park described it, “The case involved Bendectin, the only morning-sickness medication ever approved by the Food and Drug Administration. It had been used by millions of women, and more than 30 published studies had found no evidence that it caused birth defects. Yet eight so-called experts were willing to testify, in exchange for a fee from the Daubert family, that Bendectin might indeed cause birth defects.” The Court said lower courts must act as gatekeepers against science buncombe — a difficult task for some judges who, in their training as attorneys, often spent little time studying science.

Some of the Daubert reasoning surfaced in another case recently, the opinion in Pennsylvania district federal court in which Federal District Judge John Jones struck down a school board’s order that intelligent design be introduced to high school biology students, Kitzmiller v. Dover Area School District.

Can we generalize to history, too? I’m going to try, below the fold.

Here are Park’s seven warning signs, boiled down:

Park wrote:

Justice Stephen G. Breyer encouraged trial judges to appoint independent experts to help them. He noted that courts can turn to scientific organizations, like the National Academy of Sciences and the American Association for the Advancement of Science, to identify neutral experts who could preview questionable scientific testimony and advise a judge on whether a jury should be exposed to it. Judges are still concerned about meeting their responsibilities under the Daubert decision, and a group of them asked me how to recognize questionable scientific claims. What are the warning signs?

I have identified seven indicators that a scientific claim lies well outside the bounds of rational scientific discourse. Of course, they are only warning signs — even a claim with several of the signs could be legitimate. [I have cut out the explanations. — E.D.]

  1. The discoverer pitches the claim directly to the media.
  2. The discoverer says that a powerful establishment is trying to suppress his or her work.
  3. The scientific effect involved is always at the very limit of detection.
  4. Evidence for a discovery is anecdotal.
  5. The discoverer says a belief is credible because it has endured for centuries.
  6. The discoverer has worked in isolation.
  7. The discoverer must propose new laws of nature to explain an observation.

Voodoo history

Here, with thanks to Robert Park, is what I propose for the warning signs for bogus history, for voodoo history:

  1. The author pitches the claim directly to the media or to organizations of non-historians, sometimes for pay.
  2. The author says that a powerful establishment is trying to suppress his or her work.  Bogus history relies more on invective than investigation; anyone with an opposing view is an “idiot,” or evil.
  3. The sources that verify the new interpretation of history are obscure, or unavailable; if they involve a famous person, the sources are not those usually relied on by historians.
  4. Evidence for the history is anecdotal.
  5. The author says a belief is credible because it has endured for some time, or because many people believe it to be true.
  6. The author has worked in isolation, and fails to incorporate or explain other, mainstream versions of the history of the incident, and especially the author fails to explain why they are in error.
  7. The author must propose a new interpretation of history to explain an observation.

Any history account that shows one or more of those warning signs should be viewed skeptically.

In another post, I’ll flesh out the reasoning behind why they are warning signs.


Wegman Report plagiarism doesn’t bother George Mason University officials

March 18, 2012

Over at Desmogblog, John Mashey details problems with George Mason University’s conclusions that plagiarism did not really occur in  a report written for Congress that plagiarized several different sources.

If true, not only did GMU violate its own policies on duration, but on process, because they have ignored numerous well-documented complaints, including about 4 papers with Federal funding.  This process involved VP Research Roger Stough, Provost Peter Stearns and President Alan Merten, so it was certainly visible inside GMU.

See No Evil,

Hear No Evil

Speak No Evil … except about Ray Bradley [the fellow who filed the plagiarism complaint], who has yet to receive any report.

The attached report enumerates the problems that GMU managed not to see, shows the chronology of a simple complaint that took almost 2X longer than specified by policy and finally produced an obvious contradiction. People may find GMU’s funding and connections interesting, including similarities and relationships with Heartland Institute.  Finally, readers might recall the WR was alleged to be an attempt to mislead Congress, so this is not just an academic issue.

No e-mails stolen to expose the problem, but still no action against those who deny climate change occurs and will plagiarize papers to make their point.  It’s a not-pretty pass.

I suspect reporters get MEGO syndrome reading the stuff, but Desmogblog points to real problems, real difficulties in science, that deserve to be covered better than they have been.

Go read Mashey’s report and follow the links.

More:


Annals of Global Warming: Dramatic Links Found Between Climate Change, Elk, Plants, and Birds

March 14, 2012

Understanding the physics of the Earth’s atmosphere poses great problems — it is an astonishingly dynamic, fluid environment.  Understanding the relationships between species in ecosystems is no less complex, and no less vexing.

Wise followers of science recognize that when findings in biology, chemistry and physics, point the same direction, something powerful creates the convergence, and is not to be ignored.

So it is with these findings from the University of Montana and the U.S. Geological Survey, demonstrating clear links between climate change and the changing life patterns of large animals like elk, small animals like birds, and the plants the animals live in and consume.  This study is so complex that climate denialists haven’t figured out which part to deny, yet.  (This press release came out in January.)

From the USGS, with no adornment from the Bathtub, a press release on a letter in Nature Climate Change:

Dramatic Links Found Between Climate Change, Elk, Plants, and Birds

Released: 1/9/2012 11:30:00 AM

U.S. Department of the Interior, U.S. Geological Survey
Office of Communications and Publishing

In partnership with the University of Montana

Missoula, MT – Climate change in the form of reduced snowfall in mountains is causing powerful and cascading shifts in mountainous plant and bird communities through the increased ability of elk to stay at high elevations over winter and consume plants, according to a groundbreaking study in Nature Climate Change.

Red-faced warbler in Arizona, photo by Tom Martin, USGS

Red-faced warblers are one of the species affected by climate change in the form of reduced snowpack in the Arizona Mountains, according to a USGS Montana Cooperative Wildlife Research Unit study. Photo by Tom Martin, USGS, May 1998, in the Coconino National Forest

The U.S. Geological Survey and University of Montana study not only showed that the abundance of deciduous trees and their associated songbirds in mountainous Arizona have declined over the last 22 years as snowpack has declined, but it also experimentally demonstrated that declining snowfall indirectly affects plants and birds by enabling more winter browsing by elk. Increased winter browsing by elk results in trickle-down ecological effects such as lowering the quality of habitat for songbirds.

The authors, USGS Montana Cooperative Wildlife Research Unit scientist Thomas Martin and University of Montana scientist John Maron, mimicked the effects of more snow on limiting the ability of elk to browse on plants by excluding the animals from large, fenced areas. They compared bird and plant communities in these exclusion areas with nearby similar areas where elk had access, and found that, over the six years of the study, multi-decadal declines in plant and songbird populations were reversed in the areas where elk were prohibited from browsing.

Hermit thrushes in the Coconino National Forest, Arizona - 2005 photo by Tom Martin, USGS

Hermit thrushes are a songbird species that was strongly affected by plant community changes in mountains because of reduced snowpack and cascading ecological effects, according to a USGS Montana Cooperative Wildlife Research Unit study. 2005 photo by Tom Martin, USGS, in the Coconino National Forest

“This study illustrates that profound impacts of climate change on ecosystems arise over a time span of but two decades through unexplored feedbacks,” explained USGS director Marcia McNutt. “The significance lies in the fact that humans and our economy are at the end of the same chain of cascading consequences.”

The study demonstrates  a classic ecological cascade, added Martin. For example, he said, from an elk’s perspective, less snow means an increased ability to freely browse on woody plants in winter in areas where they would not be inclined to forage in previous times due to high snowpack. Increased overwinter browsing led to a decline in deciduous trees, which reduced the number of birds that chose the habitat and increased predation on nests of those birds that did choose the habitat.

Elk excluded, aspen growth increases - photo by Tom Martin, USGS, Coconino National Forest

When elk are excluded, aspen growth dramatically increases - Climate change in the form of reduced snowfall in mountains is causing powerful and cascading shifts in montane plant and bird communities through the increased ability of elk to stay at high elevations over winter and consume plants. Here, you can see an example of the difference in aspen growth inside versus outside a fence that excludes elk. Photo by Tom Martin, USGS, in Coconino National Forest

“This study demonstrates that the indirect effects of climate on plant communities may be just as important as the effects of climate-change-induced mismatches between migrating birds and food abundance because plants, including trees, provide the habitat birds need to survive,” Martin said.

The study, Climate impacts on bird and plant communities from altered animal-plant interactions, was published online on Jan. 8 in the journal Nature Climate Change.

Elk in winter at Camp Creek Feed Ground, Northwestern Wyoming - USGS photo

Elk in winter at Camp Creek Feed Ground, Northwestern Wyoming - USGS photo

More:


SkepticGate II: Fizzled assault on science

December 19, 2011
Skepticgate cartoon from the Houston Chronicle, 2009

This Anderson cartoon from the Houston Chronicle in 2009 gets the facts right, but sadly, is still accurate

Remember the pathetic, disgusting attempt to derail the climate talks in Durban, just a few days ago?  The “climate skeptics”™ dumped a bunch more private e-mails from the scientists who work on climate. (Stolen e-mails, here; be prepared to be bored, with no smoking guns, no cold guns, no guns at all.)

Unless one thinks the self-proclaimed skeptics are James Bond nemesis enough to actually hope for the end of the world (as opposed to just being monumentally, stupidly misled), their train still can’t get back on the tracks.  Revealing that someone among them has stolen more e-mails than previously known, didn’t help.  Here is a list of just how bad the derailment has been for the denialists:

  1. No great world-changing agreement, but the climate talks in Durban, South Africa, produced a consensus that a massive treaty is not coming soon, and that action to save the planet can’t wait for guys in suits who defer by people like Ralph Hall to do the right thing.  Generally, the comity at Durban is bad for the denialists — Christopher Monckton went into full panic mode, suggesting the language of the agreement available isn’t the whole story and something else — something sinister — is really going on.  (One wonders how Monckton can stand to turn out the lights at night.)  They can’t tell the difference between their burro and a burrow, and with Ralph Hall leading them they’re likely to find the edge of the cliff and leave it before they realize just how far up they are and how far they have to fall.  (Skeptic/denialist Judith Curry carried a rundown of headlines from Durban, with links — remember her bias.)
  2. British authorities raided the digs of a skeptic blogger, seizing his computer upon which he got the first round of stolen e-mails.  It’s unlikely the raidee is guilty of much beyond making the stolen stuff public (is that a crime in Britain?), but one hopes Britain’s crime fighters have access to cyber trackers who may be able to learn more from the signatures on the posts.  Searches have been noticed for other bloggers, including Jeff Id at the Air Vent, but warrants and actual searches haven’t taken place yet.
  3. One paper in climate science was officially retracted — alas for the denialists, it was one of theirs.  Plagiarism and rank error in the so-called Wegman Report to a committee of the U.S. House of Representatives prompted the call-back.  John Mashey’s gumshoe work in the libraries of academe lent a new shine to the word “scholarship.”  Republicans have yet to admit the paper’s errors.  (
  4. Texas Congressman Ralph Hall granted a rare interview, and spoke out about climate change.  He revealed that he doesn’t know much about one of the hottest issues facing the committee he chairs, and what little he knows, is wrong.  Cue the Kin Hubbard/Mick Jagger duet.
  5. Skeptics actually completed a research project and prepared it for publication.  A group at Berkeley, with funding from conservative warming denialists like the Koch brothers, and featuring the work and cooperation of leading anti-science people like Anthony Watts, took on the challenge of looking at temperatures reported from weather stations, especially in the U.S., and especially those Anthony Watts had targeted as providing unduly warm and inaccurate readings that skewed all of the science of global warming.  The not-loudly-mentioned target, of course, was the “hockey stick” graph.  Alas for the skeptics, the Berkeley Earth Surface Temperature (BEST) study produced results that verify the accuracy of measurements that show warming, and which suggest the IPCC-published hockey stick is accurate enough that it deserves credence.  Anthony Watts promptly disavowed all his own work on the project.
  6. Meanwhile, warming continued unabated by almost every measure.  Galileo could say:  Eppure, lei si scalda!

One question we need to be asking is why the incidents around the stolen e-mails are known as “Climategate” in the circles of warming denialists.  The thieves in this case came from the ranks of the so-called skeptics, and the release of the e-mails was done on the blogs of those who deny warming, or human causation, or human ability to mitigate at all.  (Fox News got it bass ackwards, of course — wondering whether the government is somehow complicit in hiding information, while all the information is public and almost all of the private communication is public.  At Fox, they don’t even get Homer Simpson doh! moments of understanding — that’s how bad it is in Denialville.)

Not climategate, but skepticgate -- follow the money cartoon

So far no one's listening to the bear on this one -- follow the money, and bring the criminals to justice.

It’s really SkepticGate, with a more-than two-year coverup and continuing, and the recent release is SkepticGate II.

Denialists, and even those who question global warming on legitimate grounds, must be frustrated.  Nothing they do stops the world from warming.  As the massive wave of evidence demonstrating the Earth warms and humans share the blame turns to a tsunami, even policy makers (Ralph Hall excepted) look for solutions to warming problems.  It’s so bad for the skeptics that even the old trick of stealing e-mails from the scientists, the trick that helped fog up the Copenhagen proceedings, did almost nothing to the Durban talks.  While no treaty came out, none was expected — but the sudden action in the last couple of days of the conference to get action despite the continued interference by climate skeptics  and their political allies, must have caught them off guard.

Now the cops are after them, too.

Happy Hanukkah, Merry Christmas, Cool KWAANZA, Ebullient Edwin Hubble Looking Up Day, Happy New Year!


Bright idea day, October 21 – Edison’s demonstration of the light bulb

October 21, 2011
GE cartoon on Edison's light bulb, by Maki Naro

Cartoon by Maki Naro, for GE - Click for larger image

GE’s release said:

Perhaps there should be a bumper sticker: “If you love doing stuff at night without a kerosene lantern, thank Edison.” Okay, it doesn’t roll trippingly off the tongue. Still, today is the anniversary of Thomas Edison’s 13-and-a-half-hour test of the carbon filament lightbulb that made electric light a practical reality for the world. As we’ve discussed before, Edison was one of many inventors of the lightbulb, but his designs proved to be transformative for the technology. Maki Naro marked the occasion with a short comic (replete with Alexander Graham Bell, who’s hoppin’ mad).

Too commercial for classroom use?  Not with proper attribution, I think.

Meanwhile, earlier at the Bathtub:


Annals of Global Warming: Arctic ice at second lowest level ever measured

October 12, 2011

Two years ago warming denialists claimed the Earth is actually cooling, and they predicted dramatic cooling by late 2010.

Instead, warming continues, overcoming the temporary mediation caused by increased particulate and sulfate emissions from coal burned in uncontrolled fashion in China, as evidence by things like the continued shrinking of Arctic ice below 20th century averages.  See this press release from NASA:

RELEASE : 11-337 – October 4, 2011

 Arctic Sea Ice Continues Decline, Hits Second-Lowest Level

WASHINGTON — Last month the extent of sea ice covering the Arctic Ocean declined to the second-lowest extent on record. Satellite data from NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado in Boulder showed that the summertime sea ice cover narrowly avoided a new record low.

The Arctic ice cap grows each winter as the sun sets for several months and shrinks each summer as the sun rises higher in the northern sky. Each year the Arctic sea ice reaches its annual minimum extent in September. It hit a record low in 2007.

The near-record ice-melt followed higher-than-average summer temperatures, but without the unusual weather conditions that contributed to the extreme melt of 2007. “Atmospheric and oceanic conditions were not as conducive to ice loss this year, but the melt still neared 2007 levels,” said NSIDC scientist Walt Meier. “This probably reflects loss of multiyear ice in the Beaufort and Chukchi seas as well as other factors that are making the ice more vulnerable.”

Joey Comiso, senior scientist at NASA’s Goddard Space Flight Center in Greenbelt, Md., said the continued low minimum sea ice levels fits into the large-scale decline pattern that scientists have watched unfold over the past three decades.

“The sea ice is not only declining, the pace of the decline is becoming more drastic,” Comiso said. “The older, thicker ice is declining faster than the rest, making for a more vulnerable perennial ice cover.”

While the sea ice extent did not dip below the 2007 record, the sea ice area as measured by the microwave radiometer on NASA’s Aqua satellite did drop slightly lower than 2007 levels for about 10 days in early September, Comiso said. Sea ice “area” differs from extent in that it equals the actual surface area covered by ice, while extent includes any area where ice covers at least 15 percent of the ocean.

Arctic sea ice extent on Sept. 9, the lowest point this year, was 4.33 million square kilometers (1.67 million square miles). Averaged over the month of September, ice extent was 4.61 million square kilometers (1.78 million square miles). This places 2011 as the second lowest ice extent both for the daily minimum extent and the monthly average. Ice extent was 2.43 million square kilometers (938,000 square miles) below the 1979 to 2000 average.

This summer’s low ice extent continued the downward trend seen over the last 30 years, which scientists attribute largely to warming temperatures caused by climate change. Data show that Arctic sea ice has been declining both in extent and thickness. Since 1979, September Arctic sea ice extent has declined by 12 percent per decade.

“The oldest and thickest ice in the Arctic continues to decline, especially in the Beaufort Sea and the Canada Basin,” NSIDC scientist Julienne Stroeve said. “This appears to be an important driver for the low sea ice conditions over the past few summers.”

Climate models have suggested that the Arctic could lose almost all of its summer ice cover by 2100, but in recent years, ice extent has declined faster than the models predicted.

NASA monitors and studies changing sea ice conditions in both the Arctic and Antarctic with a variety of spaceborne and airborne research capabilities. This month NASA resumes Operation IceBridge, a multi-year series of flights over sea ice and ice sheets at both poles. This fall’s campaign will be based out of Punta Arenas, Chile, and make flights over Antarctica.  NASA also continues work toward launching ICESat-2 in 2016, which will continue its predecessor’s crucial laser altimetry observations of ice cover from space.

To see a NASA data visualization of the 2011 Arctic sea ice minimum as measured by the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E) on Aqua, visit:

http://www.nasa.gov/topics/earth/features/2011-ice-min.html  [I have changed the link to one that works for me.]

Here is that visualization, presented by Cryosphere Program Manager, Tom Wagner:

On Sept. 9th, 2011, Arctic sea ice most likely hit its minimum extent for the year. On Sept. 20th, NASA’s Cryosphere Program Manager, Tom Wagner, shared his perspectives on the ice with television audiences across the country.

On the top of the world, a pulsing, shifting body of ice has profound effects on the weather and climate of the rest of the planet. Every winter as temperatures dip, sea ice freezes out of cold Arctic Ocean waters, and every summer the extent of that ice shrinks as warm ocean temperatures eat it away. Ice cover throughout the year can affect polar ecosystems, world-wide ocean currents, and even the heat budget of the Earth.

During the last 30 years we’ve been monitoring the ice with satellites, there has been a consistent downward trend, with less and less ice making it through the summer. The thickness of that ice has also diminished. In 2011 Arctic sea ice extent was its second smallest on record, opening up the fabled Northwest Passages and setting the stage for more years like this in the future. In this video, NASA’s Cryosphere Program Manager, Tom Wagner, shares his perspectives on the 2011 sea ice minimum.

More data and animation versions here, at Goddard Multimedia.

 


Sky islands in Yosemite National Park

September 19, 2011

Nature Notes #16 from the good people at Yosemite National Park:  Sky Islands.

Throughout the Sierra Nevada, high flat plateaus are found at elevations around twelve and thirteen thousand feet. These isolated sky islands are the home to unique plant communities that are found nowhere else.


Make this man president? Neil de Grasse Tyson indicts America’s failure to spend to dream

August 17, 2011

P. Z. Myers said he’d vote for Tyson for president.  Tyson’s point, made on Bill Maher’s program,  is certainly something that should be part of our political discussions today.

This is not a new idea by any stretch, that doing great things and dreaming great things to do is one of the things that makes America what it is, in its better incarnations.

Robert R. Wilson at the 1968 groundbreaking of Fermilab

Physicist Robert R. Wilson at the 1968 groundbreaking of Fermilab - Fermilab photo via Wikimedia

Physicist Robert Wilson — who had been the youngest group leader at Los Alamos on the Manhattan Project — gave a brilliant defense to a Congressional committee about the value of pure research, while working on the project that eventually became Fermilab.  Wikipedia has a good, concise description of the event, and an account of Wilson’s words:

In 1967 he took a leave of absence from Cornell to assume directorship of the not-yet-created National Accelerator Laboratory which was to create the largest particle accelerator of its day at Batavia, Illinois. In 1969, Wilson was called to justify the multimillion-dollar machine to the Congressional Joint Committee on Atomic Energy. Bucking the trend of the day, Wilson emphasized it had nothing at all to do with national security, rather:

It has only to do with the respect with which we regard one another, the dignity of men, our love of culture. It has to do with: Are we good painters, good sculptors, great poets? I mean all the things we really venerate in our country and are patriotic about. It has nothing to do directly with defending our country except to make it worth defending.

Thanks to Wilson’s leadership—in a full-steam ahead style very much adopted from Lawrence, despite his firings—the facility was completed on time and under budget. Originally named the National Accelerator Laboratory, it was renamed the Fermi National Accelerator Laboratory (Fermilab for short) in 1974, after famed Italian physicist Enrico Fermi; the facility centered around a four-mile circumference, 400 GeV accelerator. Unlike most government facilities, Fermilab was designed to be aesthetically pleasing. Wilson wanted Fermilab to be an appealing place to work, believing that external harmony would encourage internal harmony as well, and labored personally to keep it from looking like a stereotypical “government lab”, playing a key role in its design and architecture. It had a restored prairie which served as a home to a herd of American Bisons, ponds, and a main building purposely reminiscent of a cathedral in Beauvais, France. Fermilab’s Central Laboratory building was later named Robert Rathbun Wilson Hall in his honor.

It’s time to dream, America.  It’s time again to make America worth defending.

More: 


Poisoning the children: Study shows mothers give DDT to their children from breastmilk

July 29, 2011

Too many in the U.S. bury their heads in the sands about the issues, but researchers in Spain and Mozambique wondered whether indoor residual spraying (IRS) with DDT, to fight malaria-carrying mosquitoes, might produce harms to children in those homes.  They studied the issue in homes sprayed with DDT in Mozambique.

It turns out that young mothers ingest DDT and pass a significant amount of it to their children when the children breast feed.

The study itself is behind Elsevier’s mighty paywall, but the abstract from Chemosphere is available at no cost:

Concentration of DDT compounds in breast milk from African women (Manhiça, Mozambique) at the early stages of domestic indoor spraying with this insecticide

Maria N. Manacaa, b, c, Joan O. Grimaltb, Corresponding Author Contact Information, E-mail The Corresponding Author, Jordi Sunyerd, e, Inacio Mandomandoa, f, Raquel Gonzaleza, c, e, Jahit Sacarlala, Carlota Dobañoa, c, e, Pedro L. Alonsoa, c, e and Clara Menendeza, c, e

a Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique

b Institute of Environmental Assessment and Water Research (IDÆA-CSIC), Jordi Girona 18, 08034 Barcelona, Catalonia, Spain

c Barcelona Centre for International Health Research (CRESIB), Hospital Clínic, Universitat de Barcelona, Rosselló 132, 4a, 08036 Barcelona, Catalonia, Spain

d Centre for Research in Environmental Epidemiology (CREAL), Doctor Aiguader 88, 08003 Barcelona, Catalonia, Spain

e Ciber Epidemiología y Salud Pública, Spain

f Instituto Nacional de Saúde, Ministerio de Saúde, Maputo, Mozambique

Received 6 November 2010;

revised 19 March 2011;

accepted 1 June 2011.

Available online 20 July 2011.

Abstract

Breast milk concentrations of 4,4′-DDT and its related compounds were studied in samples collected in 2002 and 2006 from two populations of mothers in Manhiça, Mozambique. The 2006 samples were obtained several months after implementation of indoor residual spraying (IRS) with DDT for malaria vector control in dwellings and those from 2002 were taken as reference prior to DDT use. A significant increase in 4,4′-DDT and its main metabolite, 4,4′-DDE, was observed between the 2002 (median values 2.4 and 0.9 ng/ml, respectively) and the 2006 samples (7.3 and 2.6 ng/ml, respectively, p < 0.001 and 0.019, respectively). This observation identifies higher body burden intakes of these compounds in pregnant women already in these initial stages of the IRS program. The increase in both 4,4′-DDT and 4,4′-DDE suggest a rapid transformation of DDT into DDE after incorporation of the insecticide residues. The median baseline concentrations in breast milk in 2002 were low, and the median concentrations in 2006 (280 ng/g lipid) were still lower than in other world populations. However, the observed increases were not uniform and in some individuals high values (5100 ng/g lipid) were determined. Significant differences were found between the concentrations of DDT and related compounds in breast milk according to parity, with higher concentrations in primiparae than multiparae women. These differences overcome the age effect in DDT accumulation between the two groups and evidence that women transfer a significant proportion of their body burden of DDT and its metabolites to their infants.

Highlights

► DDT increases in pregnant women at the start of indoor spraying with this compound. ► Rapid transformation of DDT into DDE occurs in women after intake of this insecticide. ► The DDT increases in breast milk of women due to indoor spraying are not uniform. ► Breast milk DDT content in primiparae women is higher than in multiparae women. ► Women transfer a high proportion of their DDT and DDE body burden to their infants.

“Primiparae” women are those with one child, their first; “multiparae” women are those who have delivered more than one child.

Without having read the study, I suggest there are a few key points this research makes:

  1. Claims that DDT has been “banned” from Africa and is not in use, are patently false.
  2. Spraying poisons in homes cannot be considered to have no consequences; poisons in in very small concentrations get into the bodies of the people who live in those homes.
  3. We should not cavalierly dismiss fears of harms to humans from DDT, because it appears that use of even tiny amounts of the stuff exposes our youngest and most vulnerable children.
  4. Beating malaria has no easy, simple formula.

Women, even poor women in malaria-endemic areas, should not have to worry about passing poisonous DDT or its breakdown products to their children, through breastfeeding.  The national Academy of Sciences was right in 1970:  DDT use should be stopped, and work should be hurried to find alternatives to DDT.

Resources: 


Can public schools work? Texas Tribune’s interview with Michael Marder, Part II

June 11, 2011

From my earlier post on the Texas Tribune interview with Michael Marder, in which he questioned the assumptions that monkeying with teacher discipline, accountability, pay, training, vacations, or anything else, can produce better results in educating students, especially students from impoverished backgrounds.

Marder is the director of the University of Texas’s program to encourage much better prepared teachers, UTeach.

Michael Marder’s numbers show that it’s not the teachers’ fault that so many students are not ready for college, and not learning the stuff we think they should know.

Texas Tribune said:

In the popular 2010 documentary Waiting for Superman, former DC schools chancellor Michelle Rhee said, “But even in the toughest of neighborhoods and circumstances, children excel when the right adults are doing the right things for them.”

After looking at the data, Marder has yet to be convinced that any teaching solution has been found that can overcome the detrimental effects of poverty on a large scale — and that we may be looking for solutions in the wrong place.

[Reeve] Hamilton’s interview of Marder takes up three YouTube segments — you should watch all three.

Here’s Part 2:

Read the original introductory article at Texas Tribune.

For the record, Michelle Rhee is probably right:  In the toughest neighborhoods, children excel when the right adults do the right things for them.  But the right adults usually are parents, and the right things include reading to the children from about 12 months on, and pushing them to love learning and love books.  Teachers get the kids too late, generally, to bend those no-longer-twigs back to a proper inclination.  The government interventions required to boost school performance must come outside the classroom.  Michelle Rhee’s great failure — still — is in her tendency not to recognize that classroom performance of a student has its foundations and live roots in the homes and neighborhoods who send the children to school every day.


Do you read about politics on line? Help with this research (it’s free!)

May 14, 2011

Texas Liberal asks help for a friend doing research:

I’ve been requested to ask my readers to consider taking part in a survey of uses and users of online sources of political information being conducted by researcher Tom Johnson.

Research, in dictionary - Oklahoma State U

Image from Oklahoma State University

Mr. Johnson is a senior scholar at the University of Texas School of Journalism.

Mr. Johnson says that most of the people responding have been conservatives. This is fine as far as that goes, but they’d like to balance it out so the survey is more representative of the full electorate.

The survey should take between about 15 – 20 minutes to complete.

You might also wish to consider passing along the link to the survey on Facebook or Twitter.

Thank you.

Don’t hope that your assisting with Dr. Johnson’s research will improve the writing or accuracy of anything you get on line, though.  It’s research, not miracle working.


Annals of global warming: Records from Mauna Loa show continuing rise in atmospheric CO2

March 26, 2011
NOAA's Mauna Loa Observatory, NOAA photo, 1982, Cmdr. John Bortniak

NOAA's Mauna Loa Observatory, from NOAA At the Ends of the Earth Collection, 1982 NOAA photo by Commander John Bortniak

John Adams observed, and Ronald Reagan was fond of quoting, “Facts are stubborn things . . .”

Here are the facts on atmospheric carbon dioxide (CO2):

 

Monthly CO2 levels since 1960, Mauna Loa Observatory (Scripps Inst of Oceanography)

Mauna Loa Observatory, Scripps Institution of Oceanography, UCSD (University of Calfornia-San Diego); CO2 concentrations in parts per million (ppm)

As described at the Scripps Institution of Oceanography site:

Description:
Monthly average atmospheric carbon dioxide concentration versus time at Mauna Loa Observatory, Hawaii (20°N, 156°W) where CO2 concentration is in parts per million in the mole fraction (p.p.m.). The curve is a fit to the data based on a stiff spline plus a 4 harmonic fit to the seasonal cycle with a linear gain factor.

Data from Scripps CO2 Program.

For perspective, here’s a chart from Scripps that shows why there is concern over current levels of CO2:

CO2 over the past 420,000 years - Scripps Institution of Oceanography

CO2 over the past 420,000 years - Scripps Institution of Oceanography

Resources, More:


A fungus to fight malaria?

February 24, 2011

From a report in The Scientist Daily today:

Researchers have engineered transgenic fungi that drill into mosquitoes and kill the malaria parasite inside — the first tool of its kind — a February 25, 2011 study in Science reported.

Used in conjunction with traditional insecticide methods against mosquitoes, experts say this bioinsecticide has the potential to greatly improve malaria eradication efforts.

Mosquito infected with pathogenic fungus Metarhizium
Image: Courtesy of Raymond St. Leger

“This is a great example of trying to be innovative and use novel ways to look at this problem,” said Matt Thomas, a disease ecologist at Penn State who was not involved in the research. “It’s a move outside the existing insecticide paradigm, which has dominated parasite and vector control for 40-50 years.”

Read more: Fungus fights malaria? – The Scientist – Magazine of the Life Sciences http://www.the-scientist.com/news/display/58028/#ixzz1EuapNz8Z
Difficulties in developing this solution for use in the field promise no quick results.  Testing remains to be done on the process — and then there is the issue of how to infect the proper species of mosquito in the field.  Additionally, since this process involves genetic modification, there will be a raft of government approvals to contend with before deploying it, if it ever is deployed.

Unfortunately, putting the new technique into action may not be an easy task. “There are already difficult challenges in taking forward biopesticide technology,” said Thomas. “Now we’re adding in the additional regulatory and ethical issues around genetically modified organisms. It’s not a hurdle we should just dismiss as unimportant.”

Researchers at several different places pursue very different routes to help ease malaria — not one of them involving an increase in DDT use.
More:
  • Original article in Science:
    W. Fang et al., “Development of Transgenic Fungi That Kill Human Malaria Parasites in Mosquitoes,” Science 311: 1074-77 


Dunning-Kruger effect — in a cartoon?

February 18, 2011

A cartoon from Jon Wilkins at the Santa Fe Institute, no less.

Dunning Kruger Effect, cartoon by Jon F. Wilkins

Dunning-Kruger Effect by jonfwilkins

(Yeah, I know — it’s not big.  Click the image, go see a bigger version at Wilkins’s site.)

Wilkins added:

Kruger, J., & Dunning, D. (1999). Unskilled and unaware of it: How difficulties in recognizing one’s own incompetence lead to inflated self-assessments. Journal of Personality and Social Psychology, 77 (6), 1121-1134 DOI: 10.1037/0022-3514.77.6.1121

Earlier flotsam in Millard Fillmore’s Bathtub:  “Quote of the moment:  Bertrand Russell on the Dunning-Kruger Effect, 64 years prescient”

Tip of the old scrub brush to Jason G. Goldman at The Thoughtful Animal.


War on science – what else would you call it?

February 4, 2011

From Michael Tobis at Only In It For the Gold, an essential blog for Texans:

At the other end of Pennsylvania Avenue, Rand Paul proposes half a trillion in cuts to the US government, including:

  • National Oceanic And Atmospheric Administration (NOAA) is cut by $857 million.
  • NIH is cut by $5.8 billion.
  • DOE is completely defunded, with some nuclear-related tasks shifted to DOD.
  • NASA is cut by $4,500,000,000 (25%)
  • NSF is cut by $4,723,000,000. (62%)

Science? What science?

Cutting the federal budget is difficult.  Yes, we have a crisis in spending.  We also have many crises in education and in research, and many crises in our economy that are, each of them, rooted in a need for new research.

Is Rand Paul a complete fool?  Is he in league with Chinese Exceptionalists?  Are his ears made of tin?  Or is he a warrior against American knowledge and the American future?

This is a debate which needs facts, and people who can evaluate facts and arguments, and people with a vision for a future America — a good vision for a future America.

One gets the feeling that Rand Paul would have gone after the funding for Ben Franklin’s experiments — not because it would help the federal deficits, since Franklin funded his own work — but because he just doesn’t like science. ‘Why should we let Dr. Franklin take lightning from the gods?’ Rand might ask.  ‘Dr. Franklin should stay out of theology.’

And so the modern-day, real Rand Paul, blunders on, waging a War on Science.


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