Archive for the ‘Uncategorized’ Category

It’s about that time of year again….

Monday, August 30th, 2010

If you live in Minnesota (or another politically polar state) you know exactly what I’m talking about–those damn negative campaign ads! The ads get tiring–from both sides of the fence. One of the particularly atrocious ads is a misleading ad about Tom Emmer and his drunken past. Don’t get me wrong. I think Emmer would make a horrible governor. He’s a bigot and I highly doubt he would actually help small businesses, but that’s another story altogether. Let’s get back to the point of my blog post.

Bruce D. Kennedy ran for Secretary of State in 2006 (and lost). He keeps his website up, because it has these wonderful campaign ad spoofs. He also has a blog.

If you want to watch is campaign ad spoofs, go here. In fact, these negative campaign ad spoofs are negative campaign ads about Bruce Kennedy. No one would make negative ads about him, so he made negative ads about himself. (That’s what he gets for running as an independent!) In addition, he teaches about some of the tactics used in negative campaign advertising, mainly sophistry.

I very much respect Bruce Kennedy. It’s too bad non-Democrat-or-Republican candidates don’t seem to stand a chance.

So, take a break, watch an ad, and laugh.

Update: This ad is probably the worst! Totally misleading! It angers me.

Update 2: Another particularly atrocious ad that uses the State Fair as a negative ad campaign tool!

Fortunately, Tarryl Clark responded with a positive campaign ad instead of continuing the vicious cycle.

Jeffers Petroglyphs

Saturday, August 14th, 2010

Today I visited Jeffers Petroglyphs for the first time in years. I grew up in southern Minnesota, so I had the opportunity to visit this historic site a few times as a child and young adult. These petroglyphs are carved into red rock in southern Minnesota.

Some highlights of the trip:

The petroglyphs themselves (of course!)
Seeing the endangered species Prairie Bush Clover
The buffalo rub (shiny!)
Actually getting a guided tour
Throwing an arrow using an atlatl
Seeing prairie again (and pretty rocks! and lichens! Except the lichens cover some of the petroglyphs)
Having an opportunity to learn about a variety of topics
Seeing children enthralled by all there was to learn

There were monarch butterfly larvae in the visitor center, and we just missed watching one spin a chrysalis!We started with the multimedia presentation about the petroglyphs, which noted the importance of bison and showed a few key petroglyphs. After watching the presentation, we began to walk to the tour and got distracted by a large thistle plant with a hummingbird moth, bee and monarch butterfly on it. Plants and insects everywhere!

I don’t think I ever actually got a guided tour the other times I went to the petroglyphs. This included a special manipulation of the sun (using a source of shade and a mirror) to illuminate the petroglyphs. They popped out! A couple of the children were especially enthralled by the figures of the fighting men, one of whom was stabbed in the heart. One part of the site was recently cleared of soil and plants (a small area, but it had several petroglyphs.) There were some very interesting figures. It would be neat to see more of the site excavated to see what other figures lie below the soil! These figures were also easier to see, because they weren’t covered with lichen like many of the earlier revealed figures. (They are currently trying to remove some of the lichen from an area of the rock by placing a tarp over it. This will deprive the lichen of the sunlight it needs to survive.)

The tour guide provided some helpful information, as well as some stuff that really didn’t interest me. (I’m not very interested in the spiritual aspects. I prefer science.) Eventually, we got more onto the topic of science and discussed a lot about plants, animals, and anthropology. I am somewhat interested in cultures (especially ancient cultures and mythology), but what can I say? I am not spiritual and don’t believe in the supernatural.

Several children attended the events at Jeffers Petroglyphs, including the aforementioned guided tour. Then there was a special presentation to introduce children (and adults) to American Indian life (pre-technology). The children intently listened to the guide about the tools, clothes, and games/toys they used, including many things made from buffalo parts! The children were captivated by the presentation, especially since it was hands on and interactive. They got to participate and pretend they were Native American children.

Then the group moved outside to learn how to use an atlatl. A young 6-year-old boy went first and launched the arrow quite a long ways! Children as young as four tried and successfully used the atlatl. I even made a few throws, which skewed to the left, but went fairly far! An 8-year-old girl said she didn’t want to try it, but I could sense it was due to a lack of confidence. I goaded her into trying it and said I’d help her along the way. Well, she did it, we cheered her and she smiled with a sense of accomplishment. Sometimes trying is 95% of the battle.

Then we went to see the buffalo rub–one place where the bison would rub up against, most likely to fight itch and slough off dead skin, extra fur and ectoparasites. Eventually, parts of the rock were polished to a shiny smoothness!

I had mentioned to the tour guide earlier in the  day how much I would love to see the prairie bush clover, since it is threatened or endangered throughout its native range. She found some, including one that was still blooming and made sure to show us. It (Lespedeza leptostachya) looked quite different from its congener round headed prairie bush clover (Lespedeza capitata). Apparently the two have been hybridizing, something which could end up being bad for the threatened species.

All-in-all it was a fruitful day. I’d like to go back again some day, near dusk, where the petroglyphs are best lit. Plus there’s always more to learn!

For more on the trip, read here.

Pledge of Allegiance

Monday, May 31st, 2010

Please let me know where “God” is in the original Pledge of Allegiance. (And where it is on the original US Currency.)

“With Liberty and Justice for ALL!”
(Let’s get that part right now, too, because currently that’s just not happening.)
There is still discrimination based on race, gender and sexuality, and that is just wrong.

We (the USA) can’t be a truly great country until we get those things right!

Thank you to the veterans who died protecting the United States. Now let’s make progress. Let’s make this country what the Founding Fathers intended.

Update.

Monday, May 31st, 2010

Obligatory blog post update.

The weather is beautiful.

AHA later this week!

That is all for now.

Maybe something of substance later.

Food

Monday, May 3rd, 2010

I just wanted to let everyone know that I love Indian food.

Tonight I ate at a place called India Palace, and it was delicious!
Another good Indian restaurant I’ve been to in the Twin Cities Metro Area is Sambol.

That is all for now. (Back to homework.)

A series of concentric circles…

Monday, April 5th, 2010

This has to be 2 years old or so, but it never ceases to amuse me:


Breaking News: Series Of Concentric Circles Emanating From Glowing Red Dot

Insect Brains 101

Sunday, February 28th, 2010

We all know humans (and other mammals have brains), but sometimes we don’t consider that other animals have brains, too–even invertebrates! This will be a short post about insect brains. I may pick up on this topic again at a later date.

Yes, they also eat tomatoes.

Manduca sexta larva

Insects also have neurons.  These neurons compile into groups called ganglia (singular ganglion). In our Insect Structure and Function course, we dissected Manduca sexta larvae (tobacco horn worm) to look at their nervous system.

We counted the ganglia from the head to the abdomen. They were white-ish and diamond-shaped, linked by connectives. The subesophageal ganglion is a very important one, but we’ll cover that another day.

An insect’s nervous system has many functions–sensation, movement, release of hormones, and all that fun stuff.

This website has some pretty good information. If you mouse over the underlined words, it will show them in red on the image of the ganglia/nerves on the left side of the page. Very neat.
For slightly more basic information, visit this website.

I may go into more detail another day about the neurological and hormonal controls of different behaviors such as ecdysis (molting) and flying.

But for now I want to make the point that insects have brains, too.

Bus Etiquette and Unhealthy Relationships

Friday, February 19th, 2010

I had an exam this morning in statistics. (It went okay, although I think I messed up a few parts in the section on binomial distributions. Oh well.) Afterward, I was taking the bus back to my car. (I drove to a higher frequency bus instead of having to transfer, taking one bus that only comes twice an hour, in order to save time and sleep a little longer.)

While on the bus, the female college student sitting across from me was on the phone with her mom, complaining about her relationship. It’s kind of hard not to eavesdrop when you are on a bus.  She continued to talk about her relationship, indicating many signs of an unhealthy relationship. A call beeped in and she answered it and told the person (here boyfriend/fiance, maybe?) that she was on her way home and was on the other line with her mom. She went back to her mom. She mentioned several things, such as how she felt they both needed to change and that she wasn’t good enough for him, or something along those lines. Classic unhealthy relationship.

Finally she got off the bus, so I didn’t have to listen to her yap any more. I was so tempted to say, “Break up with him. You’ll be happier in the long run. If things turn right, you can always get back together in the future.” Many of us have been in unhealthy relationships. Why do we stay so long? I have a few ideas:

  1. I’m so used to this relationship, I don’t know what I’d do without it! (Comfort)
  2. I’m not sure I could find anybody better. (Settling)
  3. The sex has gotten boring, but I would miss our friendship. (Clinging to the familiar)
  4. The sex is great, but, man oh man, is he/she boring to talk to! (needing to branch out?)
  5. I have no other friends. (Uh oh!)
  6. We live together. Breaking up means one of us has to find a new place to live. (Oh oh again!)
  7. I don’t know. Some other reasons.  There are too many. (Let me know which I forgot!)

Well, good luck to her. Hopefully she gets things figured out and doesn’t have to interrupt people’s bus rides, because her personal life is so important that she yaks about it on the phone, so everyone within ten feet can hear.

I guess she’s not as bad as some people I’ve encountered, whom I’ve heard yakking in the very back corner of the bus, while I was sitting in the very front.

Another time, a lady was yakking on her cell phone and yelled at the bus driver for missing her stop. a) She never even actually pulled the stop request cord. b) There wasn’t actually a stop where she thought it was. She yelled at the bus driver for missing it. He said she needs to request the stop sooner and the next stop was still a half a block ahead. She retorted, “Let me off! I’m already going to have to walk a ways.” The rest of us passengers looked at each other. We didn’t have to say it–you could tell we were all thinking this: “What a bitch!” Maybe if she wasn’t busy on her cell phone, she would have known what was going on.

Or on the airplane. One time before a flight, a woman was sitting next to me, yakking about this and that and all kinds of boring things on the phone. We were near the front of the plane, so we were some of the first to get on. I was trapped! I couldn’t wait for the plane door to close, so people would have to turn off their stupid cell phones!
After the flight got started, I figured out how to nap in a middle seat (with no drink tray to lay my head on, since we were in the first row behind first class). Then, I was awoken by a smack in the face. I don’t think she realized she did it when she stood up to grab something out of her bag from the overhead bin.

I guess what she was grabbing was a fingernail clippers. She proceeded to clip her nails. On the plane, so her nails could get stuck in the airplane carpet, as if it isn’t hard enough to vacuum already! It’s also hard to fall back asleep when you hear “clip, clip. clip.”

Etiquette and basic human consideration anyone?

Antarctic Midges

Monday, February 15th, 2010

Here is an obligatory blog post about Antarctic midges (Belgica antarctica Jacobs). They live in the Antarctic. The end.

Just kidding! I’ll write more.

Well, this midge (Diptera: Chironomidae) is purely terrestrial–although it does get soaked in water an awful lot–the largest terrestrial animal in Antarctica! (Penguins aren’t purely terrestrial).  Living in Antarctica, this midge encounters a wide variety of environmental conditions. One would think the worst would be in the winter, but summer can be the harshest.  This is because the weather patterns so quickly change, especially in the microhabitat of the midge larvae. (They spend most of their life in the larval stage.)  In the summer, the larvae are very likely to come into contact with both seawater (tidal sprays) and freshwater (melting snow.) The water often evaporates, which can create a dry microhabitat or a hypersaline environment. The midge must find ways to deal with all of these. In hypersaline conditions, the midge must osmoregulate. Osmoregulation is a physiological response to handle these harsh conditions. This involves the release of osmolytes into the hemolymph and a reduction of water loss. The compounds released into the hemolymph not only affect osmosis, but they can also change the supercooling point (the temperature at which a solution freezes)!

Belgica antarctica larvae are also capable of what is called rapid cold-hardening. Cold hardening is a physiological process by which an organism adjusts to be able to tolerate colder temperatures.  It may also increase freeze tolerance! which means they can handle being frozen. (Yes, some of their tissue crystallizes and they come out alive! Freeze it too cold or too long and that might not be the case.) Some insects are freeze tolerant, and some are not. Crickets do not handle freezing very well.

In the winter, the midge needs to tolerate the cold. The larvae are quite freeze tolerant (to about -15°C). Another mechanism the midge larvae use to survive the winter is cryoprotective dehydration. This process also involves the production of osmolytes and their release into the hemolymph. The organisms slowly dries out in sync with the vapor pressure, so the melting point of its liquids is the same as the ambient temperature, which prevents it from freezing.

Pretty neat, no? Think you’d want to go to Antarctica to research these creatures?

A few references:
Elnitsky, M. A., J. B. Benoit, G. Lopez-Martinez, and D. L. Denlinger. 2009. Osmoregulation and salinity tolerance in the Antarctic midge, Belgica antarctica: seawater exposure confers enhanced tolerance to freezing and dehydration. Journal of Experimental Biology 212: 2864.
Elnitsky, M. A., and R. E. Lee. 2009. The rapid cold-hardening response in insects: ecological significance and physiological mechanisms, In L. Gusta, M. E. Wisniewski and R. Trischuk [eds.], Patterns of Freezing in Plants: The Influence of Species, Environment and Experimental Procedures. CAB International, Oxfordshire, UK. pp. 240-248.
Elnitsky, M. A., S. A. L. Hayward, J. P. Rinehart, D. L. Denlinger, and R. E. Lee Jr. 2008. Cryoprotective dehydration and the resistance to inoculative freezing in the Antarctic midge, Belgica antarctica. Journal of Experimental Biology 211: 524.

Cats

Sunday, February 7th, 2010

Alexis Mae Jane

Last night my cat was discovered to be hanging out inside the Dracaena pot. This photo needs a caption. Any ideas?