Friday, December 28, 2007
Ode To Wifey
Wednesday, December 26, 2007
Christmas Holiday Break Course Catalog
ME-103 Statics for Engineers
Students shall primarily balance forces to equilibrium. Topics covered shall include tip/slip, trusses, rolling contact, static and dynamic coefficients of friction, and overturning moments. Note: This is a special accelerated class over the Christmas holiday break and requires concurrent registration for ME-104 Wooden Block Manufacturing Lab.
MWF 13:00-15:55
3 Credits
Instructor: Prof. I Tellyouwhat
Friday, December 21, 2007
Rely on the Man Next to You
Sunday, December 16, 2007
The Pantheon
Why do I think about this? I'm on a quest to read the bible cover to cover. I'm over halfway through, 2 chapters a day or so. This puts me into Isaiah and Jeremiah, two prophets who I refer to as The Wet Blankets. They spent their lives railing against the apostasy of the Israelites, and predicted the destruction of their society because they abandoned the true God for sake of their false gods (idols). Every last forecast was proven true to the letter, so they were spot on. But I have to think, from the point of the individual Jew, that even the good hearted (who were being lied to by their own holy men) had to roll their eyes or cringe when they saw ol' sourpuss heading their way (yet again) proclaiming that nobody would bury the body's of their sons and the land would be left desolate. To say it got old is surely putting it mildly. Although the prophets got their instructions straight from High Command, I have to wonder how we can practice righteous correction... more diplomatically and probably find a more receptive audience.
We are most fortunate in the New Covenant we have today. Nonetheless, we still have the same human flaws the ancient Israelites saw. Sweetness puts great importance on various material (corporeal) things being in the right place for her routine. We do the same thing in a cup of coffee in the morning, or maybe a newspaper, or maybe a TV show, or washing our car on weekends... I habitually wore a pewter lizard around my neck for about a year until it had been progressively flattened by bench press bars to the point that it looked like it had been picked off a train track. These material things are truly immaterial for our happiness, but we cling to them to the point that they become little idols. Let's try to shake them off.
Friday, December 14, 2007
AVOID DEATH: Read this blog
Engineers need to consider safety, but there's a point where it stops making sense. I can think of a recent example where we were forced to put a cover plate over a mechanism that moved so slowly, and was so difficult to access, that the only way to get hurt would be when you've got your hands on it to do some maintenance. Which requires you to remove the cover plate. In this spirit, I've come up with a few more warnings, some of which should clearly have been placed on I Tell You What posts in the past. I can only pray that nobody was injured as a result of my lax blogging.
Thursday, December 13, 2007
My Favorite Shipyard
In Case You Were Sleeping Trouble Free
- A screwdriver
- A key for a bicycle lock, or a means of picking such a lock
That's it. The Royal Navy proudly reported that the problem was all taken care of, which is nice. However, Captains of Royal Navy submarines carrying nuclear weapons do not require launch codes for their weapons! It's like they refuse to watch Dr. Strangelove across the Atlantic or something. Mind you, this is the same outfit that brought you the sinking of the Repulse and the Prince of Wales.
If somebody needs a reference, post a comment and I'll try to update the post next week with the info.
Monday, December 10, 2007
Lies, Damn Lies, & Statistical Methods
Introduction: Due to some past events, Wifey and I found ourselves at the Yale New Haven Hospital. Right, as if there is a Yale Albany to confuse people. This is a world class institution, beyond a doubt. There those world class medical technicians were, performing tests on Wifey to evaluate if everything was OK with the pregnancy. The tech paused, and really lingered on one shot. Wifey & I exchanged a glance, because you're supposed to breeze through these things, right? The image was similar to the one below, and she was zooming in on the neck area until the resolution looked something like one of those fakes of a Sasquatch roaming the forests of the Pacific Northwest.
We were informed that the nuchal thickness was either 2.8 or 2.9 mm, depending on which side of the fuzzy gray pixelated line the tech chose for her measurement. The doctor was called in to review the measurements, and this questionable data was coupled with a quad screen to inform us that the pregnancy was "positive" for Down Syndrome. Some days you eat the bear, other days, the bear eats you.
Discussion: This doctor (hereafter: Dr. Who) was in for a surprise, as most swamp Yankees or NYC socialites referred to him are not (A) educated in statistical sampling and test methods, or (B) of generally dour and dorky disposition. I proceeded to fire off questions about his criteria for test, for evaluation, and how they compared to other accredited institutions. It seems that:
- Some relationship was developed between this measurement and the likelihood of a 11-13 week-along baby to have Down Syndrome (DS)
- Above this "normal" measurement the likelihood of DS is increased, although not guaranteed, and continues to increase as the measurement increases
- "Normal" is often well over 3mm in terms of a "positive" DS result
- Dr. Who personally adjusted the "positive" criteria back one standard deviation to the mean
Confused? Don't be. A sample spread (many are shifted, or flatter, or steeper, but this is a good example) of any population characteristic may be illustrated as below: I do not recall how many standard deviations this doc pulled towards the mean, but the result is this: more "positive" results. I'm roughing the numbers, but if the normal incidence of DS for a lady in her 20's (best case scenario) is 1/1500 (0.06%), you're almost 5 standard deviations from the mean. Given a normal false positive rate of this sort of screening is 5% (see Table 1 here) combined with ratcheting the criteria to, say, 4 standard deviations, you increased the confidence interval by about 0.06%. This means that on top of the existing 5% false positive rate inherent to the testing methods, Dr. Who has DOUBLED the number of ultrasounds reporting "positive" for DS.
Normally, such a move is great for the patient. By invoking greater scrutiny on a borderline or within-sight-of-the-borderline patients, you are more likely to catch conditions and allow treatment to proceed.
Did I mention there is no cure for DS? It gets better.
We were sat down with a "genetic counselor" to discuss Dr. Who's flux capacitor results alongside a quad screen, which is a blood test of both parents. Let me interject that quad screens, per Wikipedia, have a 7.5% false positive rate. Anyway, Wifey & I Tell You What have pretty good health, and a reasonable genetic slate. No Olympians in our clan, but no complaints. Long story short, something like a 1 in 50 chance of our baby having DS. Our options were presented as follows:
- Abortion
- Amniocentesis
- Wait for further testing in 8-10 weeks and pray for good results
I took option 1 off the table immediately, and amniocentesis, which is essentially sticking a needle in to draw off amniotic fluid for direct DNA testing, was never a realistic option for us since abortion was not in the cards. We informed her that we would wait for Round 2 of testing before deciding to keep our baby anyway. The lady was... lukewarm to my approach, but she had no authority to make any decisions. We put our faith in God to give us the strength to handle whatever happened. Now, through no credit of our own, we have our second beautiful, and quite healthy to this point, daughter from that pregnancy.
I Tell You What!: One critical statistic, where I can site the Washington Post, Wikipedia, or Time Magazine, is that over 90% of pregnancies with a DS diagnosis result in abortion. Why is this critical? For doctors to allow a high false positive rate is often benign, because early treatment is a desirable thing and more invasive subsequent testing can correct false positives. With DS, that is not the case. There is no treatment that can help the baby, other than to prepare the parents for the surely difficult task of raising a DS child. Additionally, if the mother is willing to consider abortion as a "cure", then what are the odds she's going to wait for further results, if that means staying pregnant for 2 more months (no cakewalk) or have a needle stuck in a very uncomfortable place? Judging by the 90%+ number, not very likely at all.
But why are false positives really allowed in the first place? Insurance companies (the guys writing the checks for all this testing) are mavens for cost efficiency. Some live, some die, keep cost down, because that's the way it was meant to be. BUT, extra false positives mean MORE testing, MORE doctor visits, MORE screenings. Insurance companies hate that sort of stuff. Unless... they are fully aware of the likelihood of a positive DS screening result. Based on my knowledge of miscarriages, a D&C is an outpatient procedure. It involves an OB, let's say it costs $1,000 to $1,500 (guessing, folks). It is also the coup de main of an abortion. Now, a full term pregnancy, following the decision point of this DS testing, will involve a handful of doctor's appointments, perhaps including a few extra ultrasounds because of the initial "positive" result. This is assuming no additional complications, mind you. Then there is the delivery, which may involve a few trips to the hospital triage room for monitoring before being sent home. When the baby is actually delivered, you're looking at 2 nights in the hospital, a battery of tests on the newborn and THEN 18 years of dependent care, largely covered by... the insurance companies. And I have to assume that if the child really does have DS those medical costs, especially the portions covered by insurance, skyrocket.
Folks, I haven't even touched on the wellspring of material provided by the argument that people with Down Syndrome are, well, people. I may have gotten kicked out of the living room by my mother when I was a kid for making fun of Corky Thatcher, but I never would have denied him his humanity.
Time to wrap this up, it's late. Special thanks for inspiration to Patricia E. Bauer of the Washington Post of Friday, November 16, 2007; Page A33. What have we learned?
- The bodies that God has designed are not yet fully understood by modern medicine
- Doctors are making assumptions, just like you are when you head to your typical gas station because the price there is normally lower or buy size 11 shoes because they normally fit well
- There are always pressures in our societies coming from directions or levels that we often do not expect or realize that provide motives for the people we interact with. That motive can be expected to involve money.
- Sarah Joy's recent arrival was a blessing, and worth the wait
Sunday, December 9, 2007
Only in America
Big post about Sarah Joy planned for tomorrow
Wednesday, December 5, 2007
What's a Little Pressure Between Friends?
Back from the Hospital!
Likes: mother's milk, warm beds, sleeping, gazing at random objects 12-36 inches from her face, Tom %^&#$%^%^& Brady. At least, his gorgeous face on the TV screen Monday night coincided with an otherwise inexplicable break in her crying fit.
Dislikes: diaper changes, being put down, other Capricorns, going 15 minutes without eating
More to follow, thanks for checking in
Sunday, December 2, 2007
The Irish Won't Stop Breeding
Saturday, December 1, 2007
Everybody's Got SOME Reason to Give
I recently came across a description of several colleges that require NO tuition of their students. Not counting the service academies (a noble enough pursuit, regardless), there was a surprising number of these schools. I cannot vouch for the quality of their academic programs, but it's good to know the options exist for our child(ren). It brought to mind my own good fortune.
I spoke to the recruiter/counselor (Mr. Turnquist, who later became a friend) at Michigan Tech before my senior year of high school, and he said point-blank "Stewart, after reviewing your records, I guarantee that you will qualify for a full tuition Board of Control Scholarship". My college search was all over but the crying, at that point. The result? I completed my studies there just over 4 years later with virtually no debt. This has made me financially secure and independent from the moment I got my full-time job. That started a chain of events that allowed me to purchase a home and allow Wifey to stop working as soon as Sweetness arrived on the scene. Now I see the results in our daughter's behavior and development, and as a bonus Wifey has not had to work while pregnant for our second child. It has also left me capable of meeting the needs of others when the opportunity to help arises, as well as contribute to our church's general and missions funds.
When we no longer have children living with us, I will definitely try to give back to Michigan Tech. The leg up that the university gave me has been a huge help. I will spend a little time looking for other areas in my life where I could give back (or just give) to others. After all, I scattered abroad, what's to stop my from helping and thereby enduring?