The Efficient Frontier
This is an very informative set of videos. No one video will answer all our questions, but this a good set of building blocks to help us understand the efficient frontier.
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Watching Anime "Live reactions"
A live reaction---at least the version of which I am writing---is a video of yourself "reacting" live and in real-time as you watch an anime. Others can then play back your live reaction as they watch the anime, and it's is like having you in the room with them.
The world's most sleep-starved students
The article itself was not very specific, in fact, just fluff. However, the sleeplessnes per country data is good:
Only 6 Black girls in the entire U.S. in 2008 got 5's on Physics C
A few years ago, I scolded an advisee of mine for pulling out of a leadership position (house president). Her reason was that she thought she had no chance of winning. Only one other person ran---and got the position by default. My advisee happened to be Black young woman. I told her that because of the history of our country and some facets of its current state, persons from certain demographic groups do not have the luxury to give up leadership positions. A few days ago, I saw a similar situation develop, but this time in an Honors Physics class. Upon researching some statistics, I found an article on "Who Gets 5's on AP Physics Exam" in the blog http://isteve.blogspot.com by Steve Sailer. (Disclaimer: I take no position on any view expressed by Sailer or his blog.)
Migrating Thunderbird from Win XP to Windows 7
I had a Win XP crash due to a bad disk. Since I would have to re-install XP on the new disk, I figured I might as well install a newer OS... WIndows 7 (and dual boot Opensuse Linux, but that's not relevant here). Then I wanted to keep all my mailboxes in Thuderbird as they were. I found the solution here: http://forums.mozillazine.org/viewtopic.php?f=28&t=1774485
Chrono Crusade
My favorite Anime of all time is probably Full Metal Alchemist. Anime enthusiasts know there are two versions: FMA and FMA-Brotherhood. Both are great, but Brotherhood had a complete story, following the original story line of the original author. More on FMA later. Today, I wanted to mention Chrono Crusade, the latest Anime I found in my search to find an anime that I enjoy as much as I enjoyed FMA. You can find episode 1 (of 24) with English subtitles here: Chrono Crusade on YouTube. Wikipedia has a great summary of everything you might want to know here: Chrono Crusade on Wikipedia. My review to come later.
Magnetic Fields and Forces, step 2
This is the "class 2" on Magnetic Fields and Forces
- Here Derek Owen goes over EXACTLY what we did in the first class on Magentic Fields and Forces!! Watch and solidify your learning!
https://www.youtube.com/watch?v=OQ6m_w0TS_A (9:40) - Watch the famous Dr Lewin, but only the first 7:27 !!!! Here he introduces F = qv x B
https://www.youtube.com/watch?v=w8D3ikuyaGo (0:00 - 7:27)
Fixing the "Class JLog not found" error in a Joomla 3.x site
I went to a Joomla powered website I had created (that was previously working just fine) and was redirected to an error screen that had the line:
Class 'JLog' not found in error.php on line 339 jimport
There was a long site-specific directory path before "error.php". I searched several Joomla sites looing for a solution. Most involved saving the MySQL database and re-installing. However, I found one forum that suggested the Class JLog was part of a definitions file in the libraries/joomla/log directory of the installation. The actual file was named "log.php". The post also referenced ftp errors common during an installation process.
This blog is re-born!
I had to delete all posts in order to purge the spam comments! I had not realized internet bots were such an issue!!
Can't afford college example. What should I do?
I searched ("googled") the pharse, "What should I do if I can't afford college, even with loans?" Here's a great thread that does not give an answer but certainly raises some points to consider, especially one's attitude. I found it at CollegeConfidential.com at the following URL:
High Schoolers and Sexual Risk Behavior
Besides moral and/or religious grounds (not that one needs more rationale than morality/religion), can one tell a high school that sexual activity during high school has consequnces? First, we need data to see the current landscape. I found the following data from the CDC {Youth risk behavior surveillance—United States, 2011. MMWR 2012;61(SS-4).} You can find it on the CDC website, but restated here for convenience:
Many young people engage in sexual risk behaviors that can result in unintended health outcomes. For example, among U.S. high school students surveyed in 20111
- 47.4% had ever had sexual intercourse
- 33.7% had had sexual intercourse during the previous 3 months, and, of these
- 39.8% did not use a condom the last time they had sex
- 76.7% did not use birth control pills or Depo-Provera to prevent pregnancy the last time they had sex
- 15.3% had had sex with four or more people during their life
Sexual risk behaviors place adolescents at risk for HIV infection, other sexually transmitted diseases (STDs), and unintended pregnancy:
- An estimated 8,300 young people aged 13–24 years in the 40 states reporting to CDC had HIV infection in 20092
- Nearly half of the 19 million new STDs each year are among young people aged 15–24 years3
- More than 400,000 teen girls aged 15–19 years gave birth in 20094
What if government got out of the marriage business?
Despite the lengthy and rarely intelligent debates about marriage, marriage equality, gay marriage, or whatever label the media decides to use, I have not found any articles discussing the removal of govenrment or civil law from marriage altogether. However, I finally found one. It actually discusses the issue intelligently. The article does go in-depth into how this might come about, but it poses good points. The article is posted on a blog called Big Think. I am agnostic toward the blog in general and only wish to bring attention to the article I found there, by Peter Lawler, called "Should Government Get Out of the Marriage Business?"
Darling in the Frankxx
My golden rule when watching anime is to never watch a series that is unfinished. By that I mean, only watch series that have ended. This allows me to binge-watch or at least to always have the next episode available. I suppose this satisfies a sense of control. However, I think more important for me is that this way I do not have to wait a week for the next episode. Like all of us who enjoy good movies or stories: I want to find out what happens next.
Differential Equations
Before successfully mastering Differential Equations in Calculus AB, you must have ALL the basic derivative/ anti-derivatives form MEMORIZED.
The Efficient Frontier
This is an very informative set of videos. No one video will answer all our questions, but this a good set of building blocks to help us understand the efficient frontier.
Can you go for a year without the internet? No texting, either!
A guy names Paul Miller did it and then wrote about it! Well, he did get paid to do it. You see, he's a writer. An online 'zine called The Verge was interested in the resulting story. Miller writes, "At 11:59PM on April 30th, 2012, I unplugged my Ethernet cable, shut off my Wi-Fi, and swapped my smartphone for a dumb one. It felt really good. I felt free." Miller's story is very interesting. Here's another excerpt to pique your interest:
In one of the early months my boss expressed slight frustration at how much I was writing, which has never happened before and never happened since. I lost 15 pounds without really trying. I bought some new clothes. People kept telling me how good I looked, how happy I seemed. In one session, my therapist literally patted himself on the back.
Which Groups Have Higher Proportions of Unbanked Households?
PBS's Need To Know re-braodcast on Sunday April 21(perhaps original air date was a few days earlier) presented a program on Financial Literacy. It highlighted a program in Missiissippi directed at educating kids (as young as 1st grade) and their parents about developing savings habits and the importance of having a bank account. I got curious about the statistics. The FDIC published results of a survey in 2011. The information that follows comes from that survery, which you can find here: 2012 Underbanked Survery (or go to
http://www.fdic.gov/householdsurvey/2012_unbankedreport.pdf ).
Click for a larger graph.
Single Parent Statistics
I had a very interesting conversation with one of my PreCalculus students. He had been working on a paper for another course that was investigating the achievement gap in education in America. He asked me if I had any opinions or thoughts about it. Of course, I did. During the ensuing conversaiton, we spoke about the effect of the increasing number of children raised in single-parent homes. I got curious and later looked up some statistics.
Chaos; Head
Another anime as I search for something as good as Full Metal Alcheist. Chaos; Head has plenty of promise: a blossiming love story, mystery, and a unique weapon (the DiSword). However, it's only 12 episodes long. If you would like to watch this series, go to: Chaos; Head on YouTube.
AP Report to the Nation
Have you seen the College Board's 9th Annual AP Report to the Nation? The numbers are a bit white-washed and curated. However, one can gleen some interesting trends. For examaple, 29.2% of Maryland's high school graduates of 2012 scored a 3 or higher on an AP Exam while 8 States had 10% or less. The USA average was 19.5%. Although currently, the College Board is a not-for-profit corporation, its CEO earned over $1 million in 2009. It is my beleif that, ultimately, this report is about increasing or maintaining the College Board's intake of money. Still, given that the College Board's standardized exams do act as a gate for access to the best of USA society, being knowledgeable about the demographics of success on these exams is important. Here's the demographic that I recall the most (click to see a pop-up larger version):
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