Field of Science

Happy Birthday Charles

Today February 12th is Charles Darwin's birthday, and my dear little Sister's birthday too (A card is in the mail, Sis.); she's just a tad more than 1/4th as old, which sounds much worse than it is as this is Darwin's 206th birthday. In years past TPP would have cake and get out his Darwin library (10 of his books) for his students to peruse, but this year not. So here's your tiny dose of Darwin: "We now come to the nyctitropic or sleep movements of leaves." (The Power of Movement in Plants, 1880) The image shown is a species of Oxalis, a wood sorrel, which have leaves with three sort of heart-shaped leaflets. Darwin devoted several pages of this book to describing their sleep movements.  Sleep movements of leaves occur in many plants characterized by a drooping of the leaf and a folding of the leaflets such that half as much surface area is exposed. Reading his books leaves you impressed by Darwin's powers of observation.

Lincolnland needs a state vegetable? Well, don't nominate a fruit!

When it comes to crops here in Lincolnland, there are two, maize and soybeans. In terms of value nothing else comes close. Some 4th graders decided that the state needed an official vegetable, and one of our legislators with nothing else to do decided to help, so they are nominating sweet corn as the state vegetable. Except of course, it's technically a fruit, an immature caryopsis with sugary endosperm, i.e., a cereal grain. It's hard to know if Lincolnland has any vegetables of note; maybe asparagus. Now of course this is a repeat of the all too annoying problem of usage versus botany. Tomatoes and cucumbers are fruits. And so are cereal grains. Now apparently our citizens each eat on average something like 50 lbs of sweet corn, but is that the weight at harvest?  As you know, you buy sweet corn by the ear (infructescence) and the husks and cob are not eaten and discarded, and you hardly know where to put a high carb "vegetable" like this in the food pyramid. And of course when you got 4th graders doing the voting it skews things a bit toward the tastes of a younger cohort. According to their criteria the state "vegetable" should probably be squash, marketed as canned "pumpkin", for which the state is actually famous (pumpkin capital of the USA) but does that bounce it back into the fruit category where it actually belongs?  Who knows. Go for it kids.

Erotic garden in northern Thailand

Sorry TPP missed this erotic garden on his last visit to Thailand, but it's newly opened. Not sure this is quite TPP's cup of tea, but it does have a tea house. To be sure, this is not the first place featuring numerous phalli that TPP has visited; one temple in southern India had thousands. That the owner of the garden looks like a very nice lady only demonstrates how differently different cultures perceive such imagery. In the USA you'd probably get arrested for pornography or lewdness for constructing mammaries in your garden. But were they botanically true to the theme? Will they have Amorphophallus and Phallus growing? There are other plants that might be appropriate too, e.g., Clitoria, Mammillaria. Why things may get out of hand and require some Euphoribia antisyphilletica. Here's one of the milder images for this family-oriented blog, quite an idea for a fountain really (a phallic phoutain?) but suddenly TPP feels a strong urge to urinate!  Must be the tea.  Wonder what the ladies over at Garden Rant will think of this garden design. Ladies? 
 

Lincolnland's science deniers in Congress

Actually Lincolnland only has 5 hard-core science deniers, and all things considered that ain't bad, but sadly, disturbingly, one of them represents TPP's district.  And somehow having elected "leaders" who prefer Biblical prophecy to science when it comes to making policy is something TPP does not find comforting at all. Here they are, complete with quotes, thanks to Bill Moyers.  Go to that link and look up your own state, readers, and for my foreign readers, just snicker away because the USA strives to provide the world with political entertainment in place of real leadership.  Here they are: Mike, Rodney, Randy, Peter, and John, oh, and they all are GnOPe.
Rep. Mike Bost (R-IL-12): When asked during a radio interview whether he thought climate change was real, Bost said, “I don’t. I don’t know that I do; no.” He continued, “Some scientists do; some scientists don’t” believe in climate change. [St. Louis Public Radio, 10/16/14]
Rep. Rodney Davis (R-IL-13): During an interview with Illinois Public Media radio, a constituent asked Representative Rodney Davis what he planned to do to combat climate change, and he responded that “global warming has stopped 16 years ago.” He then went on the say that climate change is real but the debate is over whether or not it is manmade or natural. [Illinois Public Media, 10/16/12]
Rep. Randy Hultgren (R-IL-14): “The greatest impact on our climate clearly is the sun, and we have very little impact on the sun and how much energy and temperature the sun is sending to the earth. We have seen clearly over thousands of years that at different times more energy has come through and different times less energy has come through, and that variation has impacted climate change. Over the thousands of years that’s been recorded we’ve had both colder times and warmer times. It happens to be that we’ve recently come out of a warmer time and now actually we’re headed in to a little bit of a colder time, the impact of the sun is much different than impact that we could have had.” [Illinois Review, 12/2/09]
Peter Roskam (R-IL-06): During a debate at the College of DuPage, “Roskam drew the ire of the crowd by calling global warming junk science.” [College of DuPage Courier, 10/20/06]
Rep. John Shimkus (R-IL-15): During his introductory remarks at a House Subcommittee on Energy and Environment hearing, Representative Shimkus read from the Bible to prove that global warming will not destroy the earth because only God can decide when the earth will end: “The earth will end only when God declares it is time to be over. Man will not destroy this earth. This earth will not be destroyed by a flood.” [House Subcommittee on Energy and Environment Hearing, 3/25/2009]



Mid-winter garden status report

So far the winter of 2014-2015 has been fairly mild.  Some unseasonal cold during the late fall to winter transition. Some snow, but nothing unusual. A night or two of deep cold, around 0 F, but not prolonged or severe cold. And now following some a couple of modest snow events, a mid-winter thaw. This provided an opportunity to have a look around at the gardens, an inspection of sorts. There be lots of limbs and twigs to pick up, the result of having had a couple of fairly wet, heavy snows. It'll take a couple of hours to gather all that dead wood, but fortunately nothing got smashed in the process. The Rhododendron-hating oak missed; probably didn't factor the wind correctly. Evergreens in general look OK including a new Cephalotaxus, plum yew. Nothing looks dry or brown, or both. Hard to tell if a Helleborus foetidus is going to flower or not, even zero degrees, which is way below freezing in F, is pretty cold for it. No obvious bunny damage although a couple of bunny barriers has to be repaired. Bunny population is not quite so high as last year, but as soon as it gets dark they appear and will visit the area around our bird/squirrel feeders to see if they find any food. Evidence indicates that the Cooper's hawks have been foraging OK and that the Phactors have a couple less cardinals than they used to have. Must be their protective coloration. Tiny sprouts can be seen where the Scilla is poking up promising a blue lawn (here and here) will follow. A few other early spring bulbs are also showing up, and yes, those have been nibbled. Bunnies got to eat. So the general status report is good for this time of year. Hard to know as variable as the weather has been what the next 4-5 weeks will be like. But what the heck, TPP planted some parsley seed in some Jiffy-7s just to get things going.

Promoting literacy, but not in our neighborhood

TPP's walk to work takes one of three paths, all quite pleasant, two of which are green boulevard malls. It's good to switch things around, but generally, the eastern most street is taken to campus and the western most street taken home. The middle street, one where the Phactors lived for 22 years is seldom walked now for no good reason. At any rate, on the way to campus TPP walks past one yard where what looks like a doll house sits on a pole. It is a little free library; take a book, bring back a book. This has always struck TPP as a fine gesture, a really nice, simple thing to do to make the world a slightly better place. However it turns out that not everyone has neighbors as nice as ours, or neighborhoods as nice as ours; in some places neighbors complained about these little libraries and dopey city officials citing ordinances stored away for decades just for such purposes deal with squeaky wheels by giving in to their curmudgeonly complaints and asking for the removal of these book exchanges. This makes TPP want to put up a little library along with a Thai spirit house (not an endorsement), especially if little floral leis were easy to come by as they are in Bangkok. How about that neighbors? Freedom of speech right beside freedom of religion.

Assessing risk and the anti-vax position

TPP grew up when measles and polio were real threats. Kids died of measles too. Every one of my grade school classrooms had at  least one student who had some form of paralysis from polio, so when the Salk vaccine became available parents wasted no time in getting their kids vaccinated. Polio has basically disappeared and the measles was almost eradicated in the USA 15 years ago and hasn't been a serious health problem for at least twice as long. This means that living within a well vaccinated herd the risk of these diseases seems very low, very distant, so avoiding vaccinations does not seem to place you at any risk. The recent measles out break shows how wrong that is in our global community where it is pretty easy to get to places where measles still exists. Then when the vector returns home, and visits some high traffic public place, you get an out-break of measles. In the safety of our herd, other risks are perceived to be greater like the discredited association of vaccinations and autism. This is a case of coincidence - the onset of autism often appears at about the same age as childhood immunizations and people naturally sought to find cause and effect relationships. This is an easy error in judgement to make, the result of only counting hits and not the way more numerous misses. Humans are quite bad at assessing risk; people fearful of flying think nothing of driving their cars although the latter is a far greater risk. In spite of the actual data, people see driving as a lower risk because they are in control. TPP gets parents terrified of letting their college age students take rain forest field trips because of the "dangers", but yours truly is much more worried about them the one night they spend in a city. But now the situation is becoming dire as the herd immunity has fallen below a safe level especially for something as easily vectored as measles. Now the decision to avoid vaccination for your children is no longer personal and no longer low risk; it affects the general public and your kids are at greater risk especially if they travel. This is why states used to require proof of vaccination before you could attend public schools; people make poor decisions that affect others. A good case can be made for not allowing unvaccinated people to leave the country, not because they are at greater risk catching a disease, which they are, but because they become vectors reintroducing an eradicated disease. 

Assessing assessment in higher education


In an article entitled “The walking dead in higher Ed” (whatever that means; it never says) Geoff Irvine tees off on what passes for assessment in higher education, and at the institutional level, it is indeed woeful. So what the ever-loving hell does this guy mean when he says “they [colleges and universities] can’t prove that students are learning”? That is what this faculty member has done for the past 35 years! TPP constantly assesses student learning; they learn content, they learn to make connections with other fields of knowledge, a hallmark of a liberal education, they learn to understand concepts in more sophisticated ways, they learn to think, they learn to observe, they learn how to frame questions and test them, they learn how to learn. This all can be demonstrated to just about anybody if they have the time to wade through all the materials collected during a typical semester-long course. However, multiply this by the number of courses, and the mountain of material becomes insurmountable, so the university hired this faculty member to provide a single letter summary, a metric quite limited to be sure, and then they take my word for it that students have learned what the course was intended to teach them. Now of course what administrators really want, and what the non-educators who impose their views on higher education really want is some nice easy metric that says this university is this much better or worse than that university (nothing new here). Oh, there are lots of metrics that don’t have anything to do with learning, e.g., graduation rate. It is important to graduate students at a high rate, and it may mean you are good university, or an average university with very good students, or an easy university; it all can look the same. Teaching and learning are complicated things to assess, and at higher levels, institutional levels they never are assessed because the essential interaction is at the grass roots level between faculty and students. TPP has tried more new things, more new approaches, and more new techniques that you can imagine, some work well and others are quickly discarded. But really, you think students can pretend learning and this faculty member won't notice?

What does this guy means when he says, “the primary source of evidence for a positive impact of instruction has come from tools like course evaluation surveys”? Course evaluation surveys tell you one thing and one thing only; they tell you what students liked and what they didn’t like. As a long time professor, TPP can assure you that students can learn a great deal from things they don’t like, but fortunately as a pretty creative instructor, he has found a lot of interesting, and yes, fun things from which they also learn. And of this learning, he has direct evidence in many forms. Still you must take my word for it because even with all the materials is you won’t know what evidence of learning and what isn’t without my input.  To demonstrate this to an administrator once, TPP wrote three short justifications for a research project and told them one of was a total fabrication, an out-and-out fib, and challenged them to pick it out. Of course, in a distant field, someone could do the same to me. 

Geoff says, “the problem is that faculty and program leaders are indeed content experts, but they are no more versed in effective assessment of student outcomes than anyone else on campus.” Say what? Who else is going to assess whether students learned anything in my class? Who else would know?  You must challenge students with situations, some few of which are called exams, where they must demonstrate learning by first drawing the dots, using correct terminology and examples to label the dots, and then connect the dots in a manner that demonstrates learning when done on blank pieces of paper. 
 What Geoff was trying to accomplish with his article was pretty easy to figure out; he’s an entrepreneur, a huckster for his own company’s assessment product. He’s just one more assessment consultant trying to win the hearts and minds of clueless administrators who believe his assessment critique BS. Yes, that’s right, Geoff Irvine is the CEO of Chalk and Wire,  where you will find “all you need, to achieve your assessment vision”.  TPP envisions people learning the correct use of commas, but here we have evidence that they don’t, an illustrative assessment.

Inside Higher Ed should provide a disclaimer before they let a guy with a vested monetary interest in criticizing assessment use their publication as a bully pulpit. In case it isn't obvious, faculty generally dislike guys like Geoff because they seem to lack a basic understanding of the educational process, and a general contempt for what faculty think of as assessment, and how faculty assess learning.  At the very end of the article, Geoff says that institutions of higher education need “one essential unified goal: to make certain students are really learning”.  Always thought that was our single reason for existing, and to say we need such a goal rather indicates Geoff's disconnect with what he wishes to assess.

A brief history of "quotation marks"

Who knew? Well, of course things like quotation marks and other such punctuations must have a history, but TPP never thought about it before. Here's a link to a brief history of "quotation marks", which at one point were double commas, a concept TPP really likes,, probably because he doesn't type so good. It was very interesting and naturally the history of such marks starts at the library in Alexandria. The article was excerpted from a book titled Shady Characters, which might be worth a read if only to find out how poorly us poor bloggers use punctuation.  If you like such things you find more at Slate's Lexicon Valley, playfully clever place for lovers of language.

Cooking up a storm

It's a stormy winter weekend here in the upper mid-west. And it's Stupor Bowl this Sunday, and little but college basketball otherwise. Neither one generates any interest, and if you don't know, dumping on basketball in the heartland of the USA is a sacreligous in the minds of many. Sorry, but us hockey guys never understood how a game without sticks where hitting is against the rules could be called a sport. So what do gardeners do? Well, you cook up a storm. A dinner party for 6 close friends had the Phactors roasting a marinated leg of lamb (raan) with a potato-cauliflower stir-fry, a cucumber raita (yogurt), flatbreads (naan), a vegetable (kohlrabi, carrot, parsnip) mulligatawny soup (dynamite!), some spicy shrimp in coconut milk sauce, and a passion fruit mousse (neither of us like Indian desserts) to finish things off. Today TPP made a roasted potato soup for Mrs. Phactor's womens' group coming for din-dins tomorrow and pizza dough and sauce for our own dinner tonight (saving the left over lamb later in the week). Wow, how did so many pots, pans, and dishes manage to get dirty?  How did so many bottle of win manage to get empty? OK, if you knew our friends you could answer that one. Needless to say, the Phactors spend a great deal of time in their kitchen, which is also the room in our house with the best view of out gardens, now re-cloked in white as this storm moves through. A cold blast will follow this front, so that potato soup will be darned comforting 24 hrs from now.